JP4222833B2 - 放射線増感剤および化学増感剤としてのアリールおよびヘテロアリール尿素Chk1阻害剤の使用 - Google Patents
放射線増感剤および化学増感剤としてのアリールおよびヘテロアリール尿素Chk1阻害剤の使用 Download PDFInfo
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- JP4222833B2 JP4222833B2 JP2002569814A JP2002569814A JP4222833B2 JP 4222833 B2 JP4222833 B2 JP 4222833B2 JP 2002569814 A JP2002569814 A JP 2002569814A JP 2002569814 A JP2002569814 A JP 2002569814A JP 4222833 B2 JP4222833 B2 JP 4222833B2
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- Prior art keywords
- alkylene
- compound
- aryl
- methylpyrazin
- preparation
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- -1 heteroaryl urea Chemical compound 0.000 title claims description 113
- 125000003118 aryl group Chemical group 0.000 title claims description 106
- 239000004202 carbamide Substances 0.000 title description 39
- 239000003112 inhibitor Substances 0.000 title description 17
- 239000000126 substance Substances 0.000 title description 6
- 101150006084 CHKB gene Proteins 0.000 title 1
- 150000001875 compounds Chemical class 0.000 claims abstract description 456
- 125000002947 alkylene group Chemical group 0.000 claims description 188
- 125000000217 alkyl group Chemical group 0.000 claims description 99
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 claims description 92
- 239000001257 hydrogen Substances 0.000 claims description 69
- 229910052739 hydrogen Inorganic materials 0.000 claims description 69
- 125000001072 heteroaryl group Chemical group 0.000 claims description 61
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims description 53
- 150000002431 hydrogen Chemical class 0.000 claims description 52
- 125000001475 halogen functional group Chemical group 0.000 claims description 48
- 125000005275 alkylenearyl group Chemical group 0.000 claims description 37
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 34
- 125000000592 heterocycloalkyl group Chemical group 0.000 claims description 34
- 125000001424 substituent group Chemical group 0.000 claims description 30
- 125000000882 C2-C6 alkenyl group Chemical group 0.000 claims description 27
- 125000001951 carbamoylamino group Chemical group C(N)(=O)N* 0.000 claims description 26
- 229910052799 carbon Inorganic materials 0.000 claims description 22
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 18
- 125000005218 alkyleneheteroaryl group Chemical group 0.000 claims description 16
- 150000003839 salts Chemical class 0.000 claims description 16
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 10
- 125000003601 C2-C6 alkynyl group Chemical group 0.000 claims description 8
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 7
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical compound FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 claims description 5
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 4
- ZITSAWAJSPKAEE-UHFFFAOYSA-N 1-(5-methylpyrazin-2-yl)-3-[5-methyl-2-(pyridin-3-ylmethoxy)phenyl]urea Chemical compound C=1N=C(C)C=NC=1NC(=O)NC1=CC(C)=CC=C1OCC1=CC=CN=C1 ZITSAWAJSPKAEE-UHFFFAOYSA-N 0.000 claims description 2
- CHROQWLBGGJMDP-UHFFFAOYSA-N 1-[2-[1,3-bis(dimethylamino)propan-2-yloxy]-5-methylphenyl]-3-(5-methylpyrazin-2-yl)urea Chemical compound CN(C)CC(CN(C)C)OC1=CC=C(C)C=C1NC(=O)NC1=CN=C(C)C=N1 CHROQWLBGGJMDP-UHFFFAOYSA-N 0.000 claims description 2
- YZOCCYVFZGCTNW-UHFFFAOYSA-N 1-[2-[2-(dimethylamino)ethoxy]-5-methylphenyl]-3-pyrazin-2-ylurea Chemical compound CN(C)CCOC1=CC=C(C)C=C1NC(=O)NC1=CN=CC=N1 YZOCCYVFZGCTNW-UHFFFAOYSA-N 0.000 claims description 2
- CCIQPVXQLVXSOF-UHFFFAOYSA-N 1-[2-[3-(dimethylamino)propoxy]-5-methylphenyl]-3-(5-methylpyrazin-2-yl)urea Chemical compound CN(C)CCCOC1=CC=C(C)C=C1NC(=O)NC1=CN=C(C)C=N1 CCIQPVXQLVXSOF-UHFFFAOYSA-N 0.000 claims description 2
- YHNCCYLEHDEQGG-UHFFFAOYSA-N 1-[2-methoxy-4-(methylaminomethyl)phenyl]-3-(5-methylpyrazin-2-yl)urea Chemical compound COC1=CC(CNC)=CC=C1NC(=O)NC1=CN=C(C)C=N1 YHNCCYLEHDEQGG-UHFFFAOYSA-N 0.000 claims description 2
- JZQHWOWXYWQWPI-UHFFFAOYSA-N 1-[4-fluoro-2-(1-methylpiperidin-4-yl)oxyphenyl]-3-(5-methylpyrazin-2-yl)urea Chemical compound C1CN(C)CCC1OC1=CC(F)=CC=C1NC(=O)NC1=CN=C(C)C=N1 JZQHWOWXYWQWPI-UHFFFAOYSA-N 0.000 claims description 2
- WQKUTGMYNOZZCR-UHFFFAOYSA-N 1-[5-fluoro-2-(1-methylpiperidin-4-yl)oxyphenyl]-3-(5-methylpyrazin-2-yl)urea Chemical compound C1CN(C)CCC1OC1=CC=C(F)C=C1NC(=O)NC1=CN=C(C)C=N1 WQKUTGMYNOZZCR-UHFFFAOYSA-N 0.000 claims description 2
- CWMKHECYGZJIEU-UHFFFAOYSA-N 1-[5-fluoro-2-[(1-methylpiperidin-3-yl)methoxy]phenyl]-3-(5-methylpyrazin-2-yl)urea Chemical compound C1N(C)CCCC1COC1=CC=C(F)C=C1NC(=O)NC1=CN=C(C)C=N1 CWMKHECYGZJIEU-UHFFFAOYSA-N 0.000 claims description 2
- ATJWVMNWMCNFLM-UHFFFAOYSA-N 1-[5-methyl-2-(1-methylpiperidin-3-yl)oxyphenyl]-3-(5-methylpyrazin-2-yl)urea Chemical compound C1N(C)CCCC1OC1=CC=C(C)C=C1NC(=O)NC1=CN=C(C)C=N1 ATJWVMNWMCNFLM-UHFFFAOYSA-N 0.000 claims description 2
- OQQNNRRZMRAYQC-UHFFFAOYSA-N 1-[5-methyl-2-(1-methylpiperidin-4-yl)oxyphenyl]-3-(5-methylpyrazin-2-yl)urea Chemical compound C1CN(C)CCC1OC1=CC=C(C)C=C1NC(=O)NC1=CN=C(C)C=N1 OQQNNRRZMRAYQC-UHFFFAOYSA-N 0.000 claims description 2
- KPUPWDSDRFBQMS-UHFFFAOYSA-N 1-[5-methyl-2-(piperidin-3-ylmethoxy)phenyl]-3-(5-methylpyrazin-2-yl)urea Chemical compound C=1N=C(C)C=NC=1NC(=O)NC1=CC(C)=CC=C1OCC1CCCNC1 KPUPWDSDRFBQMS-UHFFFAOYSA-N 0.000 claims description 2
- ODSSIIRMBFRNKX-UHFFFAOYSA-N 1-[5-methyl-2-[(1-methylpiperidin-2-yl)methoxy]phenyl]-3-(5-methylpyrazin-2-yl)urea Chemical compound CN1CCCCC1COC1=CC=C(C)C=C1NC(=O)NC1=CN=C(C)C=N1 ODSSIIRMBFRNKX-UHFFFAOYSA-N 0.000 claims description 2
- IBOBSNALDTWHEQ-UHFFFAOYSA-N 1-[5-methyl-2-[2-(1-methylpyrrolidin-2-yl)ethoxy]phenyl]-3-(5-methylpyrazin-2-yl)urea Chemical compound CN1CCCC1CCOC1=CC=C(C)C=C1NC(=O)NC1=CN=C(C)C=N1 IBOBSNALDTWHEQ-UHFFFAOYSA-N 0.000 claims description 2
- 125000003107 substituted aryl group Chemical group 0.000 claims description 2
- VPIVHTYKVXOPSD-UHFFFAOYSA-N 1-[2-methoxy-4-[[(4-methoxyphenyl)methylamino]methyl]phenyl]-3-(5-methylpyrazin-2-yl)urea Chemical compound C1=CC(OC)=CC=C1CNCC(C=C1OC)=CC=C1NC(=O)NC1=CN=C(C)C=N1 VPIVHTYKVXOPSD-UHFFFAOYSA-N 0.000 claims 1
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- 125000001931 aliphatic group Chemical group 0.000 claims 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims 1
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- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 234
- 238000006243 chemical reaction Methods 0.000 description 199
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- 238000005160 1H NMR spectroscopy Methods 0.000 description 158
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 129
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- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
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Classifications
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- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
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- A61K31/498—Pyrazines or piperazines ortho- and peri-condensed with carbocyclic ring systems, e.g. quinoxaline, phenazine
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- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
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- C07D215/00—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems
- C07D215/02—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom
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Description
X2は、−O−、−S−、または−N(R1)−であり;
Yは、OまたはSであり;またはYは共通の炭素原子に結合する2個の水素原子を表し;
Wは、ヘテロアリール、アリール、ヘテロシクロアルキル、シクロアルキル、およびヘテロアリールまたはアリール基で置換されたC1-3アルキルであり;
Zは、水素、アリール、およびヘテロアリールからなる群より選択され;
ここでWおよびZのアリール基は、R2で表される1〜4個の置換基で任意に置換され、WおよびZのヘテロアリール基は、R5で表される1〜4個の置換基で任意に置換され、Wのヘテロシクロアルキル基とシクロアルキル基は、R6で表される1〜2個の置換基で任意に置換され;
R1は、水素、C1-6アルキル、C2-6アルケニル、C2-6アルキニルおよびアリールからなる群より選択され;
R2は、ハロ、任意に置換されたC1-6アルキル、C2-6アルケニル、OCF3、NO2、CN、NC、N(R3)2、OR3、CO2R3、C(O)N(R3)2、C(O)R3、N(R1)COR3、N(R1)C(O)OR3、N(R3)C(O)OR3、N(R3)C(O)C1-3アルキレンC(O)R3、N(R3)C(O)C1-3アルキレンC(O)OR3、N(R3)C(O)C1-3アルキレンOR3、N(R3)C(O)C1-3アルキレンNHC(O)OR3、N(R3)C(O)C1-3アルキレンSO2NR3、C1-3アルキレンOR3、およびSR3からなる群より選択され;
R3は、水素、C1-6アルキル、C2-6アルケニル、シクロアルキル、アリール、ヘテロアリール、SO2R4、1以上のハロで置換されたC1-6アルキル、ヒドロキシ、ヘテロシクロアルキル、N(R4)2、C1-3アルキレンアリール、C1-3アルキレンヘテロアリール、C1-3アルキレンC3-8ヘテロシクロアルキル、C1-3アルキレンSO2アリール、任意に置換されたC1-3アルキレンN(R4)2、OCF3、C1-3アルキレンN(R4)3 +、C3-8ヘテロシクロアルキル、およびCH(C1-3アルキレンN(R4)2)2からなる群より選択されるか、または2つのR3基は、任意に置換された3〜6員の芳香環を形成するために共に取り込まれ;
R4は、水素、C1-6アルキル、シクロアルキル、アリール、ヘテロアリール、C1-6アルキレンアリール、およびSO2C1-6アルキルからなる群より選択され、または2つのR4基は任意に置換された3〜6員環を形成するために共に取り込まれ;
R5は、C1-6アルキル、アリール、N(R3)2、OR3、ハロ、N3、CN、C1-3アルキレンアリール、C1-3アルキレンN(R3)2、C(O)R3、および
R5は、ハロおよびC1-6アルキルからなる群より選択される)を有する化合物およびその薬学的に許容しうる塩または溶媒和物に関する。
W'はC1-6アルキル、アリール、N(R7)2、OR7、N3、CN、C(O)R7、C1-3アルキレンアリール、C1-3アルキレンN(R12)2、
Z'は、
ここでQ'は、J'、K'、L'およびM'の少なくとも1つがN、O、またはSである場合にのみ水素であるという条件下で水素、OR7、SR7、およびN(R7)2からなる群より選択され;
J'は、CR8、NR8、O、またはSからなる群より選択され;
K'は、CR9、NR9、O、またはSからなる群より選択され;
L'は、CR10、NR10、O、またはSからなる群より選択され;
M'は、Zがピリドンと異なるという条件付でCR11、NR11、O、またはSからなる群より選択され;
ここでR7は、水素、C1-6アルキル、C2-6アルケニル、シクロアルキル、アリール、ヘテロアリール、SO2R12、1以上のハロ、ヒドロキシ、アリール、ヘテロアリール、ヘテロシクロアルキル、N(R12)2およびSO2R12によって置換されたC1-6アルキル、C1-3アルキレンアリール、C1-3アルキレンヘテロアリール、C1-3アルキレンC3-8ヘテロシクロアルキル、C1-3アルキレンSO2アリール、任意に置換されたC1-3アルキレンN(R12)2、OCF3、C1-3アルキレンN(R12)3 +、C3-8ヘテロシクロアルキル、およびCH(C1-3アルキレンN(R12)2)2からなる群より独立して選択され、または2個のR7基は任意に置換された3〜6員の芳香環を形成するために共に取り込まれ;
R8、R9およびR10は、無、水素、ハロ、任意に置換されたC1-6アルキル、C2-6アルケニル、OCF3、NO2、CN、NC、N(R7)2、OR7、CO2R7、C(O)N(R7)2、C(O)R7、N(R13)COR7、N(R13)C(O)OR7、N(R7)C(O)OR7、N(R7)C(O)C1-3アルキレンC(O)R7、N(R7)C(O)C1-3アルキレンC(O)OR7、N(R7)C(O)C1-3アルキレンOR7、N(R7)C(O)C1-3アルキレンNHC(O)OR7、N(R7)C(O)C1-3アルキレンSO2NR7、CF3、C1-3アルキレンN(R12)SO2アリール、C1-3アルキレンN(R12)SO2ヘテロアリール、C1-3アルキレンOC1-3アルキレンアリール、C1-3アルキレンN(R12)C1-3アルキレンアリール、C1-3アルキレンN(R12)C1-3アルキレンヘテロアリール、C1-3アルキレンN(R12)C(O)R7、C1-3アルキレンN(R12)C(O)C1-3アルキレンOR2、C1-3アルキレンN(R12)C(O)アリール、C1-3アルキレンN(R12)C(O)C1-3アルキレンN(R12)2、C1-3アルキレンN(R12)C(O)ヘテロアリール、C1-3アルキレンOR7、およびSR7からなる群よりそれぞれ独立して選択され、R7は上記に定義される;
R11は、無、水素、任意に置換されたC1-6アルキル、およびハロからなる群より選択され;
R12は、水素、C1-6アルキル、シクロアルキル、アリール、ヘテロアリール、C1-3アルキレンアリール、およびSO2C1-6アルキルからなる群より選択され、または2個のR7基は任意に置換された3〜6員環を形成するために共に取り込まれ;
R13は、Q'が水素またはOCH3であり、R8、R9およびR10の少なくとも1個が水素、CH3、OCH3、およびハロと異なる場合に、水素、C1-6アルキル、C2-6アルケニル、C2-6アルキニル、およびアリールからなる群より選択される)を有するアリールおよびヘテロアリール置換尿素化合物、およびその薬学的に許容しうる塩、または溶媒和物に関する。
ここでアリール基は、R14で表される1〜4個の置換基で任意に置換され、ヘテロアリール基は、R18で表される1〜4個の置換基で任意に置換され、ヘテロシクロアルキル基とシクロアルキル基は、R19で表される1〜2個の置換基で任意に置換され;
R14は、ハロ、C1-6アルキル、C2-6アルケニル、OCF3、NO2、CN、NC、N(R16)2、OR16、CO2R16、C(O)N(R16)2、C(O)R16、N(R15)COR16、N(R15)C(O)OR16、N(R16)C(O)OR16、N(R16)C(O)C1-3アルキレンC(O)R16、N(R16)C(O)C1-3アルキレンC(O)OR16、N(R16)C(O)C1-3アルキレンOR16、N(R16)C(O)C1-3アルキレンNHC(O)OR16、N(R16)C(O)C1-3アルキレンSO2NR16、C1-3アルキレンOR16、およびSR16からなる群より選択され;
R15は、水素、C1-6アルキル、C2-6アルケニル、C2-6アルキニル、およびアリールからなる群より選択され;
R16は、水素、C1-6アルキル、C2-6アルケニル、シクロアルキル、アリール、ヘテロアリール、SO2R17、1以上のハロ、ヒドロキシ、アリール、ヘテロアリール、ヘテロシクロアルキル、N(R17)2、およびSO2R17によって置換されるC1-6アルキル、C1-3アルキレンアリール、C1-3アルキレンヘテロアリール、C1-3アルキレンC3-8ヘテロシクロアルキル、C1-3アルキレンSO2アリール、任意に置換されたC1-3アルキレンN(R17)2、OCF3、C1-3アルキレンN(R17)3 +、C3-8ヘテロシクロアルキル、CH(C1-3アルキレンN(R17)2)2からなる群より選択され、または2つのR16基は任意に置換された3〜6員の芳香環を形成するために共に取り込まれ;
R17は、水素、C1-6アルキル、シクロアルキル、アリール、およびSO2C1-6アルキルからなる群より選択され、または2個のR17基は、任意に置換された3〜6員環を形成するために共に取り込まれ;
R18は、C1-6アルキル、アリール、N(R15)2、OR15、およびハロからなる群より選択され;
R19は、ハロおよびC1-6アルキルからなる群より選択される)を有するカルバミド置換ヘテロアリール化合物に関する。
X2は、−O−、−S−、または−N(R1)−であり;
Yは、OまたはSであり;またはYは共通の炭素原子に結合する2個の水素原子を表し;
Wは、ヘテロアリール、アリール、ヘテロシクロアルキル、シクロアルキル、およびヘテロアリールまたはアリール基で置換されたC1-3アルキルであり;
Zは、水素、アリール、およびヘテロアリールからなる群より選択され;
ここでWおよびZのアリール基は、R2で表される1〜4個の置換基で任意に置換され、WおよびZのヘテロアリール基は、R5で表される1〜4個の置換基で任意に置換され、Wのヘテロシクロアルキル基とシクロアルキル基は、R6で表される1〜2個の置換基で任意に置換され;
R1は、水素、C1-6アルキル、C2-6アルケニル、C2-6アルキニルおよびアリールからなる群より選択され;
R2は、ハロ、任意に置換されたC1-6アルキル、C2-6アルケニル、OCF3、NO2、CN、NC、N(R3)2、OR3、CO2R3、C(O)N(R3)2、C(O)R3、N(R1)COR3、N(R1)C(O)OR3、N(R3)C(O)OR3、N(R3)C(O)C1-3アルキレンC(O)R3、N(R3)C(O)C1-3アルキレンC(O)OR3、N(R3)C(O)C1-3アルキレンOR3、N(R3)C(O)C1-3アルキレンNHC(O)OR3、N(R3)C(O)C1-3アルキレンSO2NR3、C1-3アルキレンOR3、およびSR3からなる群より選択され;
R3は、水素、C1-6アルキル、C2-6アルケニル、シクロアルキル、アリール、ヘテロアリール、SO2R4、1以上のハロで置換されたC1-6アルキル、ヒドロキシ、ヘテロシクロアルキル、N(R4)2、C1-3アルキレンアリール、C1-3アルキレンヘテロアリール、C1-3アルキレンC3-8ヘテロシクロアルキル、C1-3アルキレンSO2アリール、任意に置換されたC1-3アルキレンN(R4)2、OCF3、C1-3アルキレンN(R4)3 +、C3-8ヘテロシクロアルキル、およびCH(C1-3アルキレンN(R4)2)2からなる群より選択されるか、または2つのR3基は、任意に置換された3〜6員の芳香環を形成するために共に取り込まれ;
R4は、水素、C1-6アルキル、シクロアルキル、アリール、ヘテロアリール、C1-6アルキレンアリール、およびSO2C1-6アルキルからなる群より選択され、または2つのR4基は、任意に置換された3〜6員環を形成するために共に取り込まれ;
R5は、C1-6アルキル、アリール、N(R3)2、OR3、ハロ、N3、CN、C1-3アルキレンアリール、C1-3アルキレンN(R3)2、C(O)R3、および
R5は、ハロおよびC1-6アルキルからなる群より選択される)を有する化合物、およびその薬学的に許容しうる塩、または溶媒和物に関する。
Yは、OまたはSであり;
Wは、N、OおよびSからなる群より選択される少なくとも2個のヘテロ原子を含むヘテロアリールであり、そのような環はC1-6アルキル、アリール、N(R3)2、OR3、およびハロからなる群より選択される1〜4の置換基によって任意に置換される;
Zは、
ここでQは、水素、OR3、SR3、およびN(R3)2からなる群より選択され;
Jは、CR20、NR20、O、およびSからなる群より選択され;
Kは、R21、NR21、O、およびSからなる群より選択され;
Lは、R22、NR22、O、およびSからなる群より選択され;
Mは、CR23、NR23、O、およびSからなる群より選択され;
ここでR20、R21、およびR22は、無、水素、ハロ、任意に置換されたC1-6アルキル、C2-6アルケニル、OCF3、NO2、CN、NC、N(R25)2、CO2R25、C(O)N(R25)2、C(O)R25、N(R24)COR25、N(R24)C(O)OR25、N(R25)C(O)OR25、N(R25)C(O)C1-3アルキレンC(O)R25、N(R25)C(O)C1-3アルキレンC(O)OR25、N(R25)C(O)C1-3アルキレンOR25、N(R25)C(O)C1-3アルキレンNHC(O)OR25、N(R25)C(O)C1-3アルキレンSO2NR25、CF3、C1-3アルキレンN(R25)SO2アリール、C1-3アルキレンN(R25)SO2ヘテロアリール、C1-3アルキレンOC1-3アルキレンアリール、C1-3アルキレンN(R25)C1-3アルキレンアリール、C1-3アルキレンN(R25)C1-3アルキレンヘテロアリール、C1-3アルキレンN(R25)C(O)R7、C1-3アルキレンN(R25)C(O)C1-3アルキレンOR25、C1-3アルキレンN(R25)C(O)アリール、C1-3アルキレンN(R25)C(O)C1-3アルキレンN(R25)2、C1-3アルキレンN(R25)C(O)ヘテロアリール、C1-3アルキレンOR25、およびSR25からなる群よりそれぞれ独立して選択され;
R23は、無、水素、任意に置換されたC1-6アルキル、およびハロからなる群より選択され;
R24は、水素、C1-6アルキル、C2-6アルケニル、C2-6アルキニル、およびアリールからなる群より選択され;
R25は、水素、C1-6アルキル、C2-6アルケニル、シクロアルキル、ヘテロ環、アリール、ヘテロアリール、SO2R26、およびハロ、ヒドロキシ、アリール、ヘテロアリール、ヘテロシクロアルキル、N(R26)2またはSO2R26によって置換されたC1-6アルキルからなる群より選択され;
R26は、水素、C1-6アルキル、シクロアルキル、アリール、およびSO2C1-6アルキルからなる群より選択されるか、または2個のR4基は任意に置換された3〜6員環を形成するために共に取り込まる。
Wが任意に置換されたC1-6アルキル、アリール、N(R3)2、OR3、N3、CN、C(O)R7、C1-3アルキレンアリール、C1-3アルキレンN(R4)
ここでR3、X1、X2、Y、およびZは、構造式(I)で定義されたとおりである。
Wが任意に置換されたC1-6アルキル、アリール、N(R3)2、OR3、C1-3アルキレンアリール、C1-3アルキレンヘテロアリール、C1-3アルキレンC3-8ヘテロシクロアルキル、C1-3アルキレンSO2アリール、任意に置換されたC1-3アルキレンN(R4)2、OCF3、C1-3アルキレンN(R4)3 +、C3-8ヘテロシクロアルキル、CH(C1-3アルキレンN(R4)2)2、およびハロからなる群より選択される1〜4個の置換基で置換されたピリダジン、ピリミジン、およびトリアジンであり;
X1およびX2は、−N(H)−であり;
Yは、OまたはSであり;
Zは、
R3、Q、J、K、LおよびMは、上記の通り定義される。
Jは、CR20およびNR20からなる群より選択され、ここでR20は、無、水素、C1-6アルキル、およびハロである;
Kは、CR21およびNR21からなる群より選択され;
Lは、CR22およびNR22からなる群より選択され;
R21およびR22の1つは、水素、もう1つはCO2R25、C(O)N(R25)2、C(O)R25、N(R24)COR25、N(R24)C(O)OR25、N(R25)C(O)OR25、N(R25)C(O)C1-3アルキレンC(O)R25、N(R25)C(O)C1-3アルキレンC(O)OR25、N(R25)C(O)C1-3アルキレンOR25、N(R25)C(O)C1-3アルキレンNHC(O)OR25、N(R25)C(O)C1-3アルキレンSO2NR25、C1-3アルキレンOR25、およびSR25からなる群より選択され、ここでR24、R25、W、X1、X2、YおよびMは上記の通り定義される、
構造式(I)の化合物も含まれる。
W'はC1-6アルキル、アリール、N(R7)2、OR7、N3、CN、C(O)R7、C1-3アルキレンアリール、C1-3アルキレンN(R12)2、
および
Z'は
ここでQ'は水素、OR7、SR7、およびN(R7)2からなる群より選択され;
J'は、CR8、NR8、O、またはSからなる群より選択され;
K'は、CR9、NR9、O、またはSからなる群より選択され;
L'は、CR10、NR10、O、またはSからなる群より選択され;
M'は、CR11、NR11、O、またはSからなる群より選択され;
ここでR7は、水素、C1-6アルキル、C2-6アルケニル、シクロアルキル、アリール、ヘテロアリール、SO2R12、1以上のハロ、ヒドロキシ、アリール、ヘテロアリール、ヘテロシクロアルキル、N(R12)2およびSO2R12によって置換されたC1-6アルキル、C1-3アルキレンアリール、C1-3アルキレンヘテロアリール、C1-3アルキレンC3-8ヘテロシクロアルキル、C1-3アルキレンSO2アリール、任意に置換されたC1-3アルキレンN(R12)2、OCF3、C1-3アルキレンN(R12)3 +、C3-8ヘテロシクロアルキル、およびCH(C1-3アルキレンN(R12)2)2からなる群より独立して選択され、または2個のR7基は、任意に置換された3〜6員の芳香環を形成するために共に取り込まれ;
R8、R9およびR10は、無、水素、ハロ、任意に置換されたC1-6アルキル、C2-6アルケニル、OCF3、NO2、CN、NC、N(R7)2、OR7、CO2R7、C(O)N(R7)2、C(O)R7、N(R13)COR7、N(R13)C(O)OR7、N(R7)C(O)OR7、N(R7)C(O)C1-3アルキレンC(O)R7、N(R7)C(O)C1-3アルキレンC(O)OR7、N(R7)C(O)C1-3アルキレンOR7、N(R7)C(O)C1-3アルキレンNHC(O)OR7、N(R7)C(O)C1-3アルキレンSO2NR7、CF3、C1-3アルキレンN(R12)SO2アリール、C1-3アルキレンN(R12)SO2ヘテロアリール、C1-3アルキレンOC1-3アルキレンアリール、C1-3アルキレンN(R12)C1-3アルキレンアリール、C1-3アルキレンN(R12)C1-3アルキレンヘテロアリール、C1-3アルキレンN(R12)C(O)R7、C1-3アルキレンN(R12)C(O)C1-3アルキレンOR2、C1-3アルキレンN(R12)C(O)アリール、C1-3アルキレンN(R12)C(O)C1-3アルキレンN(R12)2、C1-3アルキレンN(R12)C(O)ヘテロアリール、C1-3アルキレンOR7、およびSR7からなる群よりそれぞれ独立して選択され、R7は上記に定義される;
R11は、無、水素、任意に置換されたC1-6アルキル、およびハロからなる群より選択され;
R12は、水素、C1-6アルキル、シクロアルキル、アリール、ヘテロアリール、C1-3アルキレンアリール、およびSO2C1-6アルキルからなる群より選択され、または2個のR7基は、任意に置換された3〜6員環を形成するために共に取り込まれ;
R13は、Q'が水素またはOCH3であり、R8、R9およびR10の少なくとも1個が水素、CH3、OCH3、およびハロと異なる場合に、水素、C1-6アルキル、C2-6アルケニル、C2-6アルキニル、およびアリールからなる群より選択される)を有するアリールおよびヘテロアリール二置換尿素化合物、およびその薬学的に許容しうる塩、または溶媒和物に関する。
および
J'がCR8およびNR8からなる群より選択され、ここでR8は、無、水素、C1-6アルキル、およびハロである;
K'は、CR9およびNR9からなる群より選択され;
L'は、CR10およびNR10からなる群より選択され;
R9およびR10の1つは、水素であり、もう1つはCO2R7、C(O)N(R7)2、C(O)R7、N(R13)COR7、N(R13)C(O)OR7、N(R7)C(O)OR7、N(R7)C(O)C1-3アルキレンC(O)R7、N(R7)C(O)C1-3アルキレンC(O)OR7、N(R7)C(O)C1-3アルキレンOR7、N(R7)C(O)C1-3アルキレンNHC(O)OR7、N(R7)C(O)C1-3アルキレンSO2NR7、C1-3アルキレンOR7、CF3、C1-3アルキレンN(R12)SO2アリール、C1-3アルキレンN(R12)SO2ヘテロアリール、C1-3アルキレンOC1-3アルキレンアリール、C1-3アルキレンN(R12)C1-3アルキレンアリール、C1-3アルキレンN(R12)C1-3アルキレンヘテロアリール、C1-3アルキレンN(R12)C(O)R7、C1-3アルキレンN(R12)C(O)C1-3アルキレンOR2、C1-3アルキレンN(R12)C(O)アリール、C1-3アルキレンN(R12)C(O)C1-3アルキレンN(R12)2、C1-3アルキレンN(R12)C(O)ヘテロアリール、およびSR7からなる群より選択される置換基であり、ここでR7、R13、W'、Y'、およびM'は、上記の通り定義される。
ここでアリール基は、R14で表される1〜4個の置換基で任意に置換され、ヘテロアリール基は、R18で表される1〜4個の置換基で任意に置換され、ヘテロシクロアルキル基とシクロアルキル基は、R19で表される1〜2個の置換基で任意に置換され;
R14は、ハロ、C1-6アルキル、C2-6アルケニル、OCF3、NO2、CN、NC、N(R16)2、OR16、CO2R16、C(O)N(R16)2、C(O)R16、N(R15)COR16、N(R15)C(O)OR16、N(R16)C(O)OR16、N(R16)C(O)C1-3アルキレンC(O)R16、N(R16)C(O)C1-3アルキレンC(O)OR16、N(R16)C(O)C1-3アルキレンOR16、N(R16)C(O)C1-3アルキレンNHC(O)OR16、N(R16)C(O)C1-3アルキレンSO2NR16、C1-3アルキレンOR16、およびSR16からなる群より選択され;
R15は、水素、C1-6アルキル、C2-6アルケニル、C2-6アルキニル、およびアリールからなる群より選択され;
R16は、水素、C1-6アルキル、C2-6アルケニル、シクロアルキル、アリール、ヘテロアリール、SO2R17、1以上のハロ、ヒドロキシ、アリール、ヘテロアリール、ヘテロシクロアルキル、N(R17)2、およびSO2R17によって置換されるC1-6アルキル、C1-3アルキレンアリール、C1-3アルキレンヘテロアリール、C1-3アルキレンC3-8ヘテロシクロアルキル、C1-3アルキレンSO2アリール、任意に置換されたC1-3アルキレンN(R17)2、OCF3、C1-3アルキレンN(R17)3 +、C3-8ヘテロシクロアルキル、CH(C1-3アルキレンN(R17)2)2からなる群より選択され、または2つのR16基は、任意に置換された3〜6員の芳香環を形成するために共に取り込まれ;
R17は、水素、C1-6アルキル、シクロアルキル、アリール、およびSO2C1-6アルキルからなる群より選択され、または2個のR17基は任意に置換された3〜6員環を形成するために共に取り込まれ;
R18は、C1-6アルキル、アリール、N(R15)2、OR15、およびハロからなる群より選択され;
R19は、ハロおよびC1-6アルキルからなる群より選択される)を有する化合物に関する。
ヘテロアリール基の例としてはチエニル、フリル、ピリジル、オキサゾリル、キノリル、イソキノリル、インドリル、トリアゾリル、チオシアゾリル、イソキサゾリル、イミダゾリル、ベンゾチアゾリル、ピラジニル、ピリミジニル、チアゾリルおよびチアジアゾリルが挙げられるが、これらに限定されない。
ヘテロ環置換基
無水メタノール(150 mL)中の4-アミノ-3-メトキシ安息香酸(5.0 g; 30 mmol)の冷却(約0℃)、撹拌溶液に、トリメチルシリルジアゾメタン(ヘキサン中濃度 2.0 Mの60 mL、120 mmol)をゆっくりと1時間以上かけて加えた。4時間撹拌した後、反応液を減圧下で濃縮し、酢酸エチル(200 mL)に溶かし、10%炭酸ナトリウム水溶液および食塩水を用いて洗浄し、その後乾燥し(MgSO4)、濾過し、目的のエステルが純白でない固体(収率94%)として得られるまで減圧下で濃縮した。
無水ジクロロメタン(175 mL)中のメチル-3-アミノ-4-メトキシ安息香酸(5.0 g; 27.6 mmol)の撹拌、冷却(約0℃)溶液に、ピリジン(2.34 mL; 29 mmol)、次に4-ニトロフェニルクロロギ酸(5.8 g;29 mmol)を窒素(N2)雰囲気下で加えた。8時間撹拌した後、反応液を 2N 塩酸(200 mLで2回)、飽和炭酸水素ナトリウム水溶液および食塩水(200 mL)を用いて洗浄し、その後乾燥し(MgSO4)、濾過した。濾液を酢酸エチルおよびヘキサン(800 mL)で沈殿が形成されるまで稀釈した。固体をブフナー漏斗で吸引しながら収集し、目的のカルバミン酸塩が白い固体(収率70%)として得られるまで風乾した。
無水N-メチルピロリジン(50 mL)中の4-メトキシ-3-(4-ニトロ-フェノキシカルボニルアミノ)安息香酸メチルエステル(30 g; 8.7 mmol)の撹拌溶液に、アミノピラジン(0.84 g; 8.8 mmol)を窒素(N2)雰囲気下、室温で加えた。反応溶液を80℃で6時間加熱し、その後室温まで冷却した。酢酸エチル(200 mL)および水(200 mL)を用いて稀釈することにより、目的の尿素が白い固体(収率54%)として得られた。
メタノール(35 mL)中の4-メトキシ-4-(3-ピラジン-2-イル-ウレイド)安息香酸メチルエステル(1.0 g; 3.3 mmol)の撹拌溶液に、水酸化リチウム水溶液(2N 溶液の 5 mL;10 mmol)を室温で加えた。反応溶液を67℃で15時間加熱し、その後室温まで冷却した。次に反応溶液を水(100 mL)を用いて稀釈し、酢酸エチル(100 mLで2回)を用いて洗浄した。水層のpH は、2N 塩酸を用いて pH 5.2 に調整し、結果として生じた沈殿をブフナー漏斗で吸引しながら収集し、目的の酸が白い固体として得られるまで風乾した。
無水N-メチルピロリジン(2 mL)中の遊離酸(30 mg;0.11 mmol)の撹拌溶液に、ヘキサフルオロリン酸o-ベンゾトラゾール-1-イル-N,N,N'-N'-テトラメチルウロニウム(HBTU;45 mg;0.12 mmol)、4-(2-アミニオエチル)モルフォリン(15.7 L;0.12 mmol)およびジイソプロピルエチルアミン(34 L;0.2 mmol)を窒素雰囲気下、室温で加えた。室温で15分間強力に撹拌した後、沈殿をブフナー漏斗で吸引しながら収集し、目的の酸が白い固体(収率59%)として得られるまで風乾した。
無水ジクロロエタン(0.4 mL)中の2-メトキシ-5-メチル-イル-フェニルイソシアネート(43 mL;0.3 mmol)の撹拌溶液に、2-アミノキノザリン(43.5 mg;0.3 mmol)を窒素雰囲気下、反応バイアル内で加えた。バイアルのふたを閉め、80℃で一晩(14時間)加熱した。その後、反応溶液を濾過し、残渣をジクロロメタンを用いて洗浄し、目的の尿素が白い固体(収率91%)として得られた。
1-[2-(1,1-ジフルオロメトキシ)フェニル]-3-ピラジン-2-イル尿素
1-(2-メチルスルファニルフェニル)-3-ピラジン-2-イル尿素
1-(2-メトキシ-5-ニトロフェニル)-3-ピラジン-2-イル尿素
1-(5-アミノ-2-メトキシフェニル)-3-ピラジン-2-イル尿素
N-[4-メトキシ-3-(3-ピラジン-2-イルウレイド)フェニル]サクシナム酸
(S)-1-(2,2,2-トリフルオロエタノイル)ピロリジン-2-カルボン酸[4-メトキシ-3-(3-ピラジン-2-イルウレイド)フェニル]アミド
(S)-ピロリジン-2-カルボン酸[4-メトキシ-3-(3-ピラジン-2-イルウレイド)フェニル]アミド
N-[4-メトキシ-3-(3-ピラジン-2-イルウレイド)フェニル]メタンスルフォンアミド
1-(2-メトキシ-4-ニトロフェニル)-3-ピラジン-2-イル尿素
1-(4-アミノ-2-メトキシフェニル)-3-ピラジン-2-イル尿素
C-ジメチルアミノ-N-[3-メトキシ-4-(3-ピラジン-2-イルウレイド)フェニル]アセタミド
3-クロロ-N-[3-メトキシ-4-(3-ピラジン-2-イルウレイド)フェニル]プロピオナミド
(クロロヘキシルメチルアミノ)-N-[3-メトキシ-4-(3-ピラジン-2-イルウレイド)フェニル]プロピオナミド
3-クロロペンチルアミノ-N-[3-メトキシ-4-(3-ピラジン-2-イルウレイド)フェニル]プロピオナミド
3-メトキシ-4-(3-ピラジン-2-イルウレイド)安息香酸
1H NMR (400 MHz, d6-DMSO) δ: 8.89 (br s, 1H), 8.34 (s, 1H), 8.24 (s, 1H), 8.16 (d, 1H), 7.56 (s, 1H), 7.50 (d, 1H), 3.91 (s, 3H).
N-ブチル-3-メトキシ-4-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.92 (br s, 1H), 8.37 (br s, 2H), 8.23 (d, 1H), 8.21 (s, 1H), 7.53 (s, 1H), 7.47 (d, 1H), 3.97 (s, 3H), 3.23 (q, 2H), 1.52 (m, 2H), 1.35 (m, 2H), 0.92 (t, 3H).
LRMS (apci, ホ゜シ゛ティフ゛) m/e 399.1 (M+1).
N-ベンジル-3-メトキシ-4-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.96 (t, 1H), 8.91 (s, 1H), 8.56 (s, 1H), 8.50 (s, 1H), 8.44 (m, 1H), 7.58 (s, 1H), 7.56 (d, 1H), 7.35 (m, 4H), 7.23 (m, 1H), 4.46 (d, 2H), 3.97 (s, 3H).
LRMS (apci, ホ゜シ゛ティフ゛) m/e 378.1 (M+1).
3-メトキシ-N-フェネチル-4-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.92 (br s, 1H), 8.51 (t, 1H), 8.36 (br s, 1H), 8.25 (s, 1H), 8.22 (d, 1H), 7.52 (s, 1H), 7.45 (d, 1H), 7.36-7.20 (m, 5H), 3.98 (s, 3H), 3.46 (m, 2H), 2.84 (dd, 2H).
LRMS (apci, ホ゜シ゛ティフ゛) m/e 392.1 (M+1).
3-メトキシ-N-(3-フェニルプロピル)-4-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.92 (br s, 1H), 8.40 (t, 1H), 8.36 (br s, 1H), 8.25 (d, 1H), 8.23 (s, 1H), 7.52 (s, 1H), 7.46 (d, 1H), 7.32-7.18 (m, 5H), 3.97 (s, 3H), 3.25 (m, 2H), 2.61 (m, 2H), 1.82 (m, 2H).
LRMS (apci, ホ゜シ゛ティフ゛) m/e 406.1 (M+1).
N-(2-ベンゼンスルフォニルエチル)-3-メトキシ-4-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.90 (br s, 1H), 8.43 (br m, 1H), 8.35 (br s, 1H), 8.25 (s, 1H), 8.22 (d, 1H), 7.96 (s, 1H), 7.93 (s, 1H), 7.72 (m, 1H), 7.63 (m, 2H), 7.38 (s, 1H), 7.33 (d, 1H), 3.95 (s, 3H), 3.59 (m, 2H), 3.55 (m, 2H).
LRMS (apci, ホ゜シ゛ティフ゛) m/e 456.0 (M+1).
N-(4-ヨードベンジル)-3-メトキシ-4-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.97 (t, 1H), 8.90 (s, 1H), 8.36 (s, 1H), 8.26 (d, 1H), 8.24 (s, 1H), 7.69 (d, 2H), 7.56 (m, 2H), 7.16 (d, 2H), 4.41 (d, 2H), 3.97 (s, 3H).
LRMS (apci, ホ゜シ゛ティフ゛) m/e 504.0 (M+1).
3-メトキシ-4-(3-ピラジン-2-イルウレイド)-N-(2-ピリジン-2-イルエチル)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.90 (br s, 1H), 8.51 (br m, 2H), 8.36 (s, 1H), 8.22 (m, 2H), 7.71 (t, 1H), 7.48 (s, 1H), 7.43 (d, 1H), 7.26 (d, 1H), 7.21 (m, 1H), 3.97 (s, 3H), 3.60 (m, 2H), 3.00 (dd, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 393.3 (M+1).
3-メトキシ-4-(3-ピラジン-2-イルウレイド)-N-(2-ピリジン-4-イルエチル)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.93 (s, 1H), 8.63 (d, 2H), 8.51 (t, 1H), 8.37 (s, 1H), 8.27 (s, 1H), 8.24 (d, 1H), 7.60 (d, 2H), 7.43 (m, 2H), 3.97 (s, 3H), 3.58 (m, 2H), 3.01 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 393.1 (M+1).
N-(1H-ベンゾイミダゾール-2-イルメチル)-3-メトキシ-4-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.90 (s, 1H), 8.35 (s, 1H), 8.32 (d, 1H), 8.22 (s, 1H), 7.61 (m, 3H), 7.47 (m, 2H), 7.12 (m, 2H), 4.66 (s, 2H), 3.98 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 418.2 (M+1).
N-[2-(1H-インドール-3-イル)エチル]-3-メトキシ-4-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.92 (s, 1H), 8.55 (br t, 1H), 8.26 (s, 1H), 8.24 (d, 1H), 8.23 (s, 1H), 7.60 (d, 1H), 7.53 (s, 1H), 7.50 (d, 1H), 7.26 (d, 1H), 7.19 (s, 1H), 7.05 (dd, 1H), 6.98 (dd, 1H), 3.97 (s, 3H), 3.56 (m, 2H), 2.96 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 431.2 (M+1).
3-メトキシ-N-[3-(メチルフェニルアミノ)プロピル]-4-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.89 (s, 1H), 8.41 (br s, 1H), 8.36 (s, 1H), 8.23 (d, 1H), 8.22 (s, 1H), 7.52 (s, 1H), 7.49 (d, 1H), 7.16 (m, 2H), 6.70 (d, 2H), 6.59 (dd, 1H), 3.96 (s, 3H), 3.38 (m, 2H), 3.30 (m, 2H), 2.87 (s, 3H), 1.77 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 435.2 (M+1).
N-(1-ベンジルピロリジン-3-イル)-3-メトキシ-4-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.88 (br s, 1H), 8.36 (br m, 2H), 8.24 (d, 1H), 8.21 (s, 1H), 7.51 (s, 1H), 7.32 (m, 4H), 7.22 (m, 1H), 4.39 (br m, 1H), 3.96 (s, 3H), 3.59 (s, 2H), 2.79 (m, 1H), 2.62 (m, 1H), 2.40 (m, 1H), 2.16 (m, 1H), 1.81 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 447.2 (M+1).
N-(3-(R)-1-ベンジルピロリジン-3-イル)-3-メトキシ-4-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.83 (br s, 1H), 8.36-8.24 (m, 3H), 8.15 (m, 1H), 7.48 (m, 2H), 7.32 (m, 4H), 7.22 (m, 1H), 4.37 (m, 1H), 3.96 (s, 3H), 3.59 (s, 2H), 2.78 (m, 1H), 2.63 (m, 1H), 2.41 (m, 1H), 2.17 (m, 1H), 1.80 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 447.1 (M+1).
N-(3-(S)-1-ベンジルピロリジン-3-イル)-3-メトキシ-4-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.85 (s, 1H), 8.34 (br s, 1H), 8.30 (s, 1H), 8.25 (d, 1H), 8.19 (s, 1H), 7.50 (m, 2H), 7.32 (m, 4H), 7.22 (m, 1H), 4.39 (m, 1H), 3.97 (s, 3H), 3.59 (s, 2H), 2.79 (m, 1H), 2.62 (m, 1H), 2.41 (m, 1H), 2.16 (m, 1H), 1.81 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 447.1 (M+1).
N-(2ジメチルアミノエチル)-3-メトキシ-N-メチル-4-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.17 (s, 1H), 8.05 (s, 1H), 7.94 (s, 1H), 7.76 (d, 1H), 6.92 (m, 2H), 3.79 (m, 2H), 3.75 (s, 3H), 3.36 (m, 2H), 2.97 (s, 3H), 2.88 (s, 6H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 373.2 (M+1).
3-メトキシ-N-(3-メチルアミノプロピル)-4-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.93 (s, 1H), 8.38-8.25 (m, 4H), 7.59 (d, 1H), 7.52 (m, 1H), 3.98 (s, 3H), 3.92 (m, 2H), 2.92 (m, 2H), 2.50 (s, 3H), 1.82 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 359.1 (M+1).
N-(3-ジメチルアミノプロピル)-3-メトキシ-4-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.93 (s, 1H), 8.56 (t, 1H), 8.37 (s, 1H), 8.25 (d, 1H), 8.23 (s, 1H), 7.52 (s, 1H), 7.50 (d, 1H), 4.10 (m, 2H), 3.97 (s, 3H), 3.35 (s, 6H), 3.05 (s, 6H), 3.05 (m, 2H), 1.84 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 373.1 (M+1).
N-(3-ジメチルアミノプロピル)-3-メトキシ-N-メチル-4-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.60 (s, 1H), 8.33 (d, 1H), 8.23 (s, 1H), 8.19 (s, 1H), 7.01 (m, 2H), 3.99 (s, 3H), 3.83 (d, 3H), 3.59 (m, 2H), 2.78 (m, 2H), 2.59 (s, 6H), 2.22 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 387.1 (M+1).
3-メトキシ-N-メチル-(3-モルフォリン-4-イルプロピル)-4-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.92 (s, 1H), 8.57 (t, 1H), 8.36 (s, 1H), 8.28 (d, 1H), 8.24 (s, 1H), 7.52 (s, 1H), 7.50 (d, 1H), 3.96 (s, 3H), 3.61 (m, 2H), 3.42 (m, 2H), 3.32 (m, 4H), 3.10 (m, 4H), 1.90 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 415.1 (M+1).
3-メトキシ-N-[3-(4-メチルピペラジン-1-イル)プロピル]-4-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.92 (s, 1H), 8.41 (m, 1H), 8.36 (s, 1H), 8.24 (m, 2H), 7.52 (s, 1H), 7.49 (d, 1H), 3.97 (s, 3H), 3.31 (m, 11H), 2.70 (m, 2H), 2.41 (m, 2H), 1.72 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 428.1 (M+1).
塩化[2-[3-メトキシ-4-(3-ピラジン-2-イルウレイド)ベンゾイルアミノ]エチル]トリメチルアンモニウム
1H NMR (400 MHz, d6-DMSO) δ: 8.92 (s, 1H), 8.77 (m, 1H), 8.36 (s, 1H), 8.30 (d, 1H), 8.24 (s, 1H), 7.53 (s, 1H), 7.51 (d, 1H), 3.97 (s, 3H), 3.70 (m, 2H), 3.50 (m, 2H), 3.15 (s, 9H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 373.1 (M+1).
4-メトキシ-3-(3-ピラジン-2-イルウレイド)安息香酸
N-ブチル-4-メトキシ-3-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.90 (s, 1H), 8.63 (s, 1H), 8.35 (s, 1H), 8.23 (m, 1H), 8.21 (s, 1H), 7.52 (d, 1H), 7.06 (d, 1H), 3.95 (s, 3H), 3.22 (m, 2H), 1.50 (m, 2H), 1.33 (m, 2H), 0.90 (t, 3H).
LRMS (apci, ホ゜シ゛ティフ゛) m/e 344.1 (M+1).
N-ベンジル-4-メトキシ-3-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.92 (s, 1H), 8.90 (br s, 1H), 8.73 (s, 1H), 8.33 (s, 1H), 8.23 (s, 1H), 7.60 (d, 1H), 7.33 (m, 4H), 7.23 (m, 1H), 7.12 (d, 1H), 4.44 (s, 2H), 3.96 (s, 3H).
LRMS (apci, ホ゜シ゛ティフ゛) m/e 378.1 (M+1).
4-メトキシ-N-フェネチル-3-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.92 (s, 1H), 8.64 (s, 1H), 8.40 (m, 1H), 8.35 (s, 1H), 8.23 (s, 1H), 7.52 (d, 1H), 7.33-7.18 (m, 5H), 7.08 (d, 1H), 3.96 (s, 3H), 3.44 (m, 2H), 2.82 (m, 2H).
LRMS (apci, ホ゜シ゛ティフ゛) m/e 392.1 (M+1).
4-メトキシ-N-(3-フェニルプロピル)-3-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.92 (s, 1H), 8.64 (s, 1H), 8.36 (s, 1H), 8.23 (s, 1H), 7.56 (d, 1H), 7.32-7.22 (m, 5H), 7.18 (m, 1H), 7.10 (d, 1H), 3.97 (s, 3H), 3.24 (m, 2H), 2.62 (dd, 2H), 1.82 (m, 2H).
LRMS (apci, ホ゜シ゛ティフ゛) m/e 406.1 (M+1).
N-(2-ベンゼンスルフォニルエチル)-4-メトキシ-3-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.90 (s, 1H), 8.58 (s, 1H), 8.38 (br s, 1H), 8.32 (s, 1H), 8.23 (s, 1H), 7.94 (d, 2H), 7.74 (m, 1H), 7.65 (d, 2H), 7.38 (d, 1H), 7.05 (d, 1H), 3.95 (s, 3H), 3.57 (m, 2H), 3.51 (m, 2H).
LRMS (apci, ホ゜シ゛ティフ゛) m/e 456.0 (M+1).
4-メトキシ-3-(3-ピラジン-2-イルウレイド)-N-(2-ピリジン-2-イルエチル)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.90 (s, 1H), 8.64 (s, 1H), 8.52 (d, 1H), 8.41 (m, 1H), 8.32 (s, 1H), 8.21 (s, 1H), 7.72 (m, 1H), 7.50 (d, 1H), 7.28 (d, 1H), 7.22 (m, 1H), 7.08 (d, 1H), 3.96 (s, 3H), 3.59 (m, 2H), 2.98 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 415.2 (M+1).
4-メトキシ-3-(3-ピラジン-2-イルウレイド)-N-(2-ピリジン-4-イルエチル)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.91 (s, 1H), 8.63 (s, 1H), 8.46 (d, 2H), 8.40 (m, 1H), 8.35 (s, 1H), 8.24 (s, 1H), 7.47 (d, 1H), 7.26 (d, 2H), 7.08 (d, 1H), 3.96 (s, 3H), 3.50 (m, 2H), 2.84 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 415.2 (M+1).
N-(1H-ベンゾイミダゾール-2-イルメチル)-4-メトキシ-3-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.99 (t, 1H), 8.91 (s, 1H), 8.77 (s, 1H), 8.36 (s, 1H), 8.23 (s, 1H), 7.66 (d, 1H), 7.56 (d, 1H), 7.44 (d, 1H), 7.15 (m, 3H), 4.65 (d, 2H), 3.97 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 418.1 (M+1).
N-[2-(1H-インドール-3-イルエチル)-4-メトキシ-3-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.92 (s, 1H), 8.69 (s, 1H), 8.43 (t, 1H), 8.33 (s, 1H), 8.24 (s, 1H), 7.60 (d, 1H), 7.56 (d, 1H), 7.35 (d, 1H), 7.17 (s, 1H), 7.11 (d, 1H), 7.07 (m, 1H), 6.97 (m, 1H), 3.96 (s, 3H), 3.54 (m, 2H), 2.95 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 431.1 (M+1).
4-メトキシ-N-[3-(メチルフェニルアミノ)プロピル]-3-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.92 (s, 1H), 8.64 (s, 1H), 8.37 (m, 1H), 8.35 (s, 1H), 8.23 (s, 1H), 7.55 (d, 1H), 7.14 (m, 3H), 6.70 (d, 2H), 6.58 (t, 1H), 3.96 (s, 3H), 3.37 (m, 2H), 3.25 (m, 2H), 2.86 (s, 3H), 1.77 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 435.2 (M+1).
N-(1-ベンジルピロリジン-3-イル)-4-メトキシ-3-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.90 (s, 1H), 8.62 (s, 1H), 8.36 (s, 1H), 8.30 (d, 1H), 8.22 (s, 1H), 7.56 (d, 1H), 7.32 (m, 4H), 7.22 (m, 1H), 7.15 (d, 1H), 4.37 (m, 1H), 3.96 (s, 3H), 3.59 (s, 2H), 2.79 (m, 1H), 2.60 (m, 1H), 2.39 (m, 1H), 2.14 (m, 1H), 1.80 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 447.2 (M+1).
N-(2-ジメチルアミノエチル)-4-メトキシ-N-メチル-3-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 9.39 (br s, 1H), 8.91 (s, 1H), 8.35 (s, 1H), 8.33 (d, 1H), 8.23 (s, 1H), 7.16-7.09 (m, 2H), 3.96 (s, 3H), 3.76 (m, 2H), 3.37 (m, 2H), 2.99 (m, 3H), 2.85 (br s, 6H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 373.2 (M+1).
4-メトキシ-N-(3-メチルアミノプロピル)-3-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 7.98 (m, 2H), 7.91 (s, 1H), 7.82 (s, 1H), 7.17 (d, 1H), 6.73 (d, 1H), 3.73 (s, 3H), 3.29 (m, 2H), 2.98 (m, 2H), 2.61 (s, 3H), 1.88 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 359.2 (M+1).
N-(3-ジメチルアミノプロピル)-4-メトキシ-3-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 7.98 (m, 1H), 7.96 (s, 2H), 7.81 (s, 1H), 7.16 (d, 1H), 6.72 (d, 1H), 3.73 (s, 3H), 3.29 (m, 2H), 3.09 (m, 2H), 2.80 (s, 6H), 1.93 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 373.2 (M+1).
N-(3-ジメチルアミノプロピル)-4-メトキシ-N-メチル-3-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.37 (s, 1H), 8.19 (s, 1H), 8.04 (s, 1H), 7.80 (d, 1H), 7.13 (m, 1H), 7.01 (m, 1H), 3.82 (m, 3H), 3.51 (m, 2H), 3.11 (m, 2H), 2.96 (m, 3H), 2.80 (s, 6H), 2.01 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 387.1 (M+1).
4-メトキシ-N-[3-(4-メチルピペラジン-1-イル)プロピル]-3-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.18 (s, 1H), 8.06 (s, 1H), 8.04 (s, 1H), 7.96 (s, 1H), 7.32 (d, 1H), 6.85 (d, 1H), 3.79 (s, 3H), 3.48 (br s, 8H), 3.36 (m, 2H), 3.17 (m, 2H), 2.83 (s, 3H), 1.96 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 428.2 (M+1).
塩化[2-[4-メトキシ-3-(3-ピラジン-2-イルウレイド)ベンゾイルアミノ]エチル]トリメチルアンモニウム
1H NMR (400 MHz, d6-DMSO) δ: 8.17 (s, 1H), 8.05 (s, 1H), 8.03 (s, 1H), 7.93 (s, 1H), 7.32 (d, 1H), 6.84 (d, 1H), 3.80 (s, 3H), 3.76 (m, 2H), 3.44 (m, 2H), 3.11 (s, 9H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 373.0 (M+1).
4-メトキシ-N-(3-モルフォリン-4-イルプロピル)-3-(3-ピラジン-2-イルウレイド)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.91 (s, 1H), 8.63 (s, 1H), 8.36 (s, 1H), 8.35 (m, 1H), 8.23 (s, 1H), 7.54 (d, 1H), 7.10 (d, 1H), 3.96 (s, 3H), 3.57 (m, 4H), 3.26 (m, 2H), 2.34 (m, 4H), 2.32 (m, 2H), 1.66 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 415.2 (M+1).
3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]安息香酸
ステップ2:5-メチル-2-アミノピラジン。撹拌した(5-メチルピラジン-2-イル)カルバミン酸第3級ブチルエステル(2.1 g, 10 mmol)の塩化メチレン溶液(30 mL)に、0℃、窒素雰囲気下、トリフルオロ酢酸(30 mL)を加えた。反応溶液を一晩かけて室温に戻した。ロータリーエバポレーターによって反応溶液からトリフルオロ酢酸を取り除き、200 mL の塩化メチレンに再溶解させ、 100 mL の10%炭酸ナトリウム水溶液と撹拌した。有機層を分離し、水層を塩化メチレン(100 mL で3回)を用いて抽出した。有機層を合わせて、乾燥させ(MgSO4)、濾過し、オレンジ色の固体(1 g, 収率92%)が得られるまで濃縮した。
ステップ3:3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]安息香酸メチルエステル。撹拌した3-メトキシ-4-(4-ニトロフェノキシカルボニルアミノ)安息香酸メチルエステル(11.7 g, 33.8 mmol)の NMP 溶液(34 mL)に、室温、窒素雰囲気下、5-メチル-2-アミノピラジン(3.69 g, 33.8 mmol)を加え、反応溶液を85℃油浴に入れた。6時間後、反応溶液を室温まで冷却すると沈殿が生じた。酢酸エチル(200 mL)を加え、沈殿を濾過によって分離した(4.7 g, 収率44%)。 1H NMR (400 MHz, d6-DMSO) δ: 8.79 (br s, 1H), 8.36 (d, 1H), 8.23 (s, 1H), 7.60 (d, 1H), 7.52 (s, 1H), 3.98 (s, 3H), 3.81 (s, 3H), 2.42 (s, 3H).
ステップ4:3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド)安息香酸。撹拌した3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]安息香酸メチルエステル(7.15 g, 22.6 mmol)の 3:1 MeOH:H2O 溶液(226 mL)に、室温、窒素雰囲気下、水酸化リチウム一水和物(9.5 g, 226 mmol)を固体で加え、混合液を65℃に加熱した。温度到達後、懸濁液は徐々に明黄色溶液となった。約4時間後、沈殿が生じたが、反応は一晩続いた。室温まで冷却した後、ロータリーエバポレーターによってメタノールを取り除き、水性懸濁液を水 100 mL を用いて稀釈し、濃塩酸を用いて pH=5 に中和した。pH=5 に到達したら、懸濁液は黄色から白色に変わった。次に懸濁液を大きなセラミックロート上の濾紙を通して濾過した。濾過は非常にゆっくりであり、数時間かかった。濾過塊を水で2回洗浄した。大部分の水を取り除いたとき、残渣をデシケータ中、高真空下で一晩乾燥させ、遊離酸が白い固体(6 g, 収率88%)が得られた。 1H NMR (400 MHz, d6-DMSO) δ: 8.79 (br s, 1H), 8.36 (d, 1H), 8.22 (s, 1H), 7.57 (d, 1H), 7.51 (s, 1H), 3.97 (s, 3H), 2.42 (s, 3H).
3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]-N-(2-ピリジン-2-イルエチル)ベンズアミド
1H NMR (400 MHz, CDCl3) δ: 8.90 (s, 1H), 8.58 (d, 1H), 8.50 (t, 1H), 8.23 (d, 1H), 8.21 (s, 1H), 7.82 (t, 1H), 7.48-7.31 (m, 4H), 3.97 (s, 3H), 3.62 (m, 2H), 3.04 (m, 2H), 2.42 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 407.1 (M+1).
N-(1-ベンジルピペリジン-4-イル)-3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.44 (br s, 1H), 8.32 (d, 1H), 8.09 (s, 1H), 7.47 (s, 1H), 7.38-7.28 (m, 6H), 7.09 (d, 1H), 4.00 (m, 1H), 3.99 (s, 3H), 3.60 (s, 2H), 2.98 (m, 2H), 2.52 (s, 3H), 2.25 (m, 2H), 2.00 (m, 2H), 1.64 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 475.2 (M+1).
N-(3-ジメチルアミノプロピル)-3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.90 (br s, 1H), 8.55 (t, 1H), 8.26 (d, 1H), 8.22 (s, 1H), 7.52 (s, 1H), 7.50 (d, 1H), 3.98 (s, 3H), 3.32 (m, 2H), 3.07 (m, 2H), 2.77 (s, 6H), 2.41 (s, 3H), 1.89 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 387.1 (M+1).
3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]-N-(3-モルフォリン-4-イルプロピル)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 10.05 (s, 1H), 8.88 (s, 1H), 8.20 (m, 3H), 7.41-7.19 (m, 7H), 3.96 (s, 3H), 3.78 (m, 1H), 3.70 (m, 1H), 3.57 (m, 1H), 3.38 (m, 1H), 2.50 (s, 6H), 2.40 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 448.9 (M+1).
N-(2-ジメチルアミノ-2-フェニルエチル)-3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 10.05 (s, 1H), 8.88 (s, 1H), 8.20 (m, 3H), 7.41-7.19 (m, 7H), 3.96 (s, 3H), 3.78 (m, 1H), 3.70 (m, 1H), 3.57 (m, 1H), 3.38 (m, 1H), 2.50 (s, 6H), 2.40 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 448.9 (M+1).
N-(2-ジメチルアミノ-1-フェニルエチル)-3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 11.61 (br s, 1H), 9.71 (br s, 1H), 8.42 (d, 1H), 8.36 (s, 1H), 8.09 (s, 1H), 7.52-7.21 (m, 7H), 5.05 (br s, 1H), 3.93 (s, 3H), 2.80 (m, 1H), 2.52 (s, 3H), 2.37 (s, 6H), 1.79 (br s, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 449.0 (M+1).
N-(1-アザビシクロ[2.2.2]オクト-3-イル)-3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 10.17 (br s, 1H), 8.90 (br s, 1H), 8.24 (d, 1H), 8.23 (s, 1H), 8.17 (d, 1H), 7.53 (d, 1H), 7.50 (s, 1H), 3.98 (s, 3H), 3.95 (m, 1H), 3.10 (m, 1H), 2.90 (m, 1H), 2.64 (m, 4H), 2.42 (s, 3H), 1.87 (m, 1H), 1.80 (m, 1H), 1.59 (m, 2H), 1.31 (m, 1H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 411.0 (M+1).
3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]-N-(3-R-1-ピリジン-2-イルメチルピロリジン-3-イル)ベンズアミド
ステップ3:3-R-1-ピリジン-2-イルメチルピロリジン-3-イルアミン二塩酸塩を、酸/HBTU混合溶液に加えられる溶液を形成するために 500 mL NMP 中で過剰量の DIEA(70μL, 0.4 mmol)と混合することを除いて、化合物208の製法に従って調製した。粗生産物は、9/1 CH2Cl2/MeOH を流す Biotage 12S カラムを用いるクロマトグラフィーによって精製した(収率60%)。
1H NMR (400 MHz, CDCl3) δ: 8.57 (s, 1H), 8.51 (d, 1H), 8.39 (d, 1H), 8.17 (s, 1H), 8.09 (s, 1H), 7.92 (s, 1H), 7.64 (d, 1H), 7.50 (s, 1H), 7.30 (d, 1H), 6.70 (d, 1H), 4.69 (m, 1H), 4.00 (s, 3H), 3.66 (dd, 2H), 2.98 (m, 1H), 2.80 (m, 1H), 2.70 (m, 1H), 2.53 (s, 3H), 2.39 (m, 3H), 1.76 (m, 1H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 462.3 (M+1).
3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]-N-(3-R-1-メチルピロリジン-3-イル)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.78 (br s, 1H), 8.36 (d, 1H), 8.22 (d, 1H), 8.20 (s, 1H), 7.52 (s, 1H), 7.50 (d, 1H), 4.39 (m, 1H), 3.96 (s, 3H), 2.64 (m, 1H), 2.61 (m, 1H), 2.43 (s, 3H), 2.39 (m, 2H), 2.24 (s, 3H), 2.17 (m, 1H), 1.76 (m, 1H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 385.3 (M+1).
N-(3-R-1-ベンジルピロリジン-3-イル)-3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンズアミド
1H NMR (400 MHz, CDCl3) δ: 9.09 (br s, 1H), 8.43 (d, 1H), 8.09 (s, 1H), 8.02 (s, 1H), 7.57 (m, 1H), 7.53 (s, 1H), 7.46 (d, 1H), 7.33-7.22 (m, 4H), 4.79 (m, 1H), 4.00 (s, 3H), 3.78 (dd, 2H), 3.13 (m, 2H), 2.76 (m, 1H), 2.55 (s, 3H), 2.44 (m, 1H), 1.79 (m, 1H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 461.1 (M+1).
3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]-N-(3-R-1-ピリジン-4-イルメチルピロリジン-3-イル)ベンズアミド
1H NMR (400 MHz, CDCl3) δ: 8.56 (d, 2H), 8.41 (d, 1H), 8.21 (d, 1H), 8.20 (s, 1H), 8.08 (s, 1H), 7.52 (s, 1H), 7.32 (d, 1H), 7.25 (d, 2H), 6.71 (d, 1H), 4.73 (m, 1H), 4.00 (s, 3H), 3.66 (dd, 2H), 2.97 (m, 1H), 2.82 (m, 1H), 2.71 (m, 1H), 2.54 (s, 3H), 2.39 (m, 2H), 1.78 (m, 1H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 462.3 (M+1).
3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]-N-(3-R-1-チオフェン-2-イルメチルピロリジン-3-イル)ベンズアミド
1H NMR (400 MHz, CDCl3) δ: 8.96 (br s, 1H), 8.43 (d, 1H), 8.09 (d, 2H), 7.57 (s, 1H), 7.50 (d, 1H), 7.10 (d, 1H), 6.91 (m, 2H), 4.80 (m, 1H), 4.00 (s, 3H), 3.96 (dd, 2H), 3.17 (m, 1H), 3.08 (m, 1H), 2.71 (m, 1H), 2.54 (s, 3H), 2.42 (m, 2H), 1.80 (m, 1H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 467.2 (M+1).
N-(3-R-1-シクロヘキシルメチルピロリジン-3-イル)-3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンズアミド
1H NMR (400 MHz, CDCl3) δ: 8.89 (br s, 1H), 8.32 (d, 1H), 8.23 (d, 1H), 8.21 (s, 1H), 7.51 (s, 1H), 7.49 (d, 1H), 4.38 (m, 1H), 3.96 (s, 3H), 2.76 (m, 1H), 2.56 (m, 1H), 2.42 (s, 3H), 2.38 (m, 1H), 2.25-2.06 (m, 3H), 1.77 (m, 3H), 1.61 (m, 3H), 1.40 (m, 1H), 1.19 (m, 3H), 0.83 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 467.3 (M+1).
3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]-N-(3-R-1-メチルピロリジン-3-イル)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 8.78 (br s, 1H), 8.35 (d, 1H), 8.22 (d, 1H), 8.21 (s, 1H), 7.52 (s, 1H), 7.49 (d, 1H), 4.39 (m, 1H), 3.96 (s, 3H), 2.66 (m, 1H), 2.61 (m, 1H), 2.43 (s, 3H), 2.39 (m, 2H), 2.24 (s, 3H), 2.17 (m, 1H), 1.75 (m, 1H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 385.4 (M+1).
N-(3-S-1-ベンジルピロリジン-3-イル)-3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンズアミド
1H NMR (400 MHz, CDCl3) δ: 9.09 (br s, 1H), 8.43 (d, 1H), 8.09 (s, 1H), 8.02 (s, 1H), 7.57 (m, 1H), 7.53 (s, 1H), 7.46 (d, 1H), 7.33-7.22 (m, 4H), 4.79 (m, 1H), 4.00 (s, 3H), 3.78 (dd, 2H), 3.13 (m, 2H), 2.76 (m, 1H), 2.55 (s, 3H), 2.44 (m, 1H), 1.79 (m, 1H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 461.1 (M+1).
3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]-N-(3-S-1-ピリジン-2-イルメチルピロリジン-3-イル)ベンズアミド
1H NMR (400 MHz, CDCl3) δ: 8.56 (d, 1H), 8.38 (s, 1H), 8.32 (d, 1H), 8.06 (s, 1H), 7.68 (t, 1H), 7.51 (s, 1H), 7.40 (d, 1H), 7.35 (d, 1H), 7.21 (m, 1H), 4.72 (m, 1H), 4.00 (s, 3H), 3.79 (dd, 2H), 3.40 (m, 1H), 3.03 (m, 1H), 2.86 (m, 1H), 2.64 (m, 1H), 2.53 (s, 3H), 2.35 (m, 1H), 1.78 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 462.1 (M+1).
3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]-N-(3-S-1-ピリジン-3-イルメチルピロリジン-3-イル)ベンズアミド
1H NMR (400 MHz, CDCl3) δ: 8.56 (s, 1H), 8.51 (m, 1H), 8.39 (d, 1H), 8.18 (s, 1H), 8.08 (s, 2H), 7.64 (d, 1H), 7.50 (s, 1H), 7.33 (d, 1H), 6.77 (d, 1H), 4.72 (m, 1H), 4.00 (s, 3H), 3.66 (dd, 2H), 2.97 (m, 1H), 2.82 (m, 1H), 2.71 (m, 1H), 2.54 (s, 3H), 2.40 (m, 2H), 1.76 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 462.3 (M+1).
3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]-N-(3-S-1-ピリジン-4-イルメチルピロリジン-3-イル)ベンズアミド
1H NMR (400 MHz, CDCl3) δ: 8.56 (s, 2H), 8.41 (d, 1H), 8.24 (s, 1H), 8.20 (s, 1H), 8.08 (s, 1H), 7.53 (s, 1H), 7.32 (d, 1H), 7.24 (d, 2H), 6.75 (d, 1H), 4.72 (m, 1H), 4.00 (s, 3H), 3.67 (dd, 2H), 2.98 (m, 1H), 2.82 (m, 1H), 2.71 (m, 1H), 2.54 (s, 3H), 2.40 (m, 2H), 1.79 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 462.3 (M+1).
3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]-N-(3-S-1-チオフェン-2-イルメチルピロリジン-3-イル)ベンズアミド
1H NMR (400 MHz, CDCl3) δ: 8.71 (br s, 1H), 8.42 (d, 1H), 8.11 (d, 2H), 7.55 (s, 1H), 7.44 (d, 1H), 7.39 (d, 1H), 7.20 (d, 1H), 6.91 (m, 2H), 4.78 (m, 1H), 4.00 (s, 3H), 3.94 (dd, 2H), 3.17 (m, 1H), 3.05 (m, 1H), 2.69 (m, 1H), 2.53 (s, 3H), 2.42 (m, 2H), 1.80 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 467.2 (M+1).
N-(3-S-1-シクロヘキシルメチルピロリジン-3-イル)-3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンズアミド
1H NMR (400 MHz, CDCl3) δ: 8.71 (br s, 1H), 8.42 (d, 1H), 8.11 (d, 2H), 7.55 (s, 1H), 7.44 (d, 1H), 7.39 (d, 1H), 7.20 (d, 1H), 6.91 (m, 2H), 4.78 (m, 1H), 4.00 (s, 3H), 3.94 (dd, 2H), 3.17 (m, 1H), 3.05 (m, 1H), 2.69 (m, 1H), 2.53 (s, 3H), 2.42 (m, 2H), 1.80 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 467.2 (M+1).
N-(3-S-1-ベンジルピロリジン-3-イル)-4-[3-(5-メチルピラジン-2-イル)ウレイド]-3-トリフルオロメトキシベンズアミド
1H NMR (400 MHz, CDCl3/CD3OD) δ: 8.56 (d, 1H), 8.37 (br s, 1H), 8.08 (s, 1H), 7.84 (s, 1H), 7.66 (d, 1H), 7.40-7.28 (m, 6H), 4.73 (m, 1H), 3.68 (dd, 2H), 2.77 (dd, 2H), 2.53 (s, 3H), 2.43 (m, 1H), 2.37 (dd, 2H), 1.78 (m, 1H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 514.9 (M+1).
N-(1-ベンジルピロリジン-4-イルメチル)-3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンズアミド
1H NMR (400 MHz, CDCl3) δ: 7.85 (m, 5H), 5.45 (s, 1H), 5.34 (s, 1H), 3.50 (s, 2H), 2.93 (d, J=10.96 Hz, 2H), 2.16 (t, J=12.16 Hz, 1H), 2.01 (t, J=11.74 Hz, 2H), 1.87 (d, J=12.52, 2H), 1.76 (q, J=12.52 Hz, 2H).
ステップ2:4-アミノメチル-1-ベンジルピペリジン。N-ベンジルイソニペコタミド(7.34 g, 34 mmol)の無水 THF 溶液 60 mL に、LiAlH4 (1.9 g, 51 mmol)を加え、混合溶液を室温で10分間撹拌し、次いで3時間還流しながら加熱した。飽和酒石酸ナトリウムカリウム溶液 100 mL を加えることで反応を停止させ、EtOAc (50 mLで3回)を用いて抽出した。抽出層を合わせ、水 20 mL および食塩水 20 mL を用いて洗浄し、その後 MgSO4 を用いて乾燥させ、濾過し、目的とする生産物が得られるまで濃縮した。
1H NMR (400 MHz, CDCl3) δ: 7.13 (m, 5H), 3.42 (s, 2H), 2.91 (m, 2H), 2.95 (m, 2H), 1.97 (m, 2H), 1.62 (m, 2H), 2.21 (m, 5H).
ステップ3:N-(1-ベンジルピペリジン-4-イルメチル)-3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンズアミド。化合物208の製法に従って4-アミノメチル-1-ベンジルピペリジンから調製した。
1H NMR (400 MHz, d6-DMSO) δ: 10.10 (s, 2H), 8.81 (s, 1H), 8.48 (s, 1H), 8.26 (m, 2H), 7.52 (m, 7H), 3.97 (s, 5H), 3.33 (s, 3H), 3.18 (s, 3H), 2.43 (s, 3H), 1.75 (s, 3H), 1.44 (s, 2H).
LRMS (apci, ホ゜シ゛ティフ゛) m/e 489.1 (M+1).
N-[3-S-1-(4-フルオロベンジル)ピロリジン-3-イル]-3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンズアミド
1H NMR (400 MHz, CDCl3) δ: 7.2-7.3 (m, 2H), 6.9-7.1 (m, 2H), 4.85 (br s, 1H, 交換), 4.18 (br s, 1H), 3.55 (s, 2H), 2.65 (br m, 1H), 2.58 (m, 1H), 2.50 (m, 1H), 2.2-2.4 (m, 2H), 1.5-1.7 (m, 1H), 1.4 (s, 9H).
ステップ2:(3S)-3-アミノ-1-(4-フルオロベンジル)ピロリジン。(3S)-3-(第3級ブトキシカルボニルアミノ)-1-(4-フルオロベンジル)ピロリジン(400 mg, 1.36 mmol)のギ酸溶液(15 mL)を室温で撹拌した。3時間後、無色透明の溶液を乾燥するまで濃縮し、残渣をEtOAc 20 mL に溶かし、5% NH4OH 10 mL、次いで食塩水 10 mL を用いて洗浄した。溶液を MgSO4 を用いて乾燥させ、濾過し、生産物が黄色い油(240 mg, 収率91%)として得られるまで濃縮した。
1H NMR (400 MHz, CDCl3) δ: 7.28 (m, 2H), 6.99 (m, 2H), 3.56 (d, J=6.2 Hz, 2H), 3.47-3.53 (m, 1H), 2.67-2.71 (m, 2H), 2.42-2.48 (m, 1H), 2.28-2.31 (m, 1H), 2.21-2.28 (m, 1H), 1.59 (s, 2H, NH2), 1.43-1.52 (m, 1H).
ステップ3:N-[(3S)-1-(4-フルオロベンジル)ピロリジン-3-イル]-3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンズアミド。化合物208の製法に従って(3S)-3-アミノ-1-(4-フルオロベンジル)ピロリジンから調製した。
1H NMR (400 MHz, CDCl3) δ: 10.8 (s, 2H), 8.8 (s, 1H), 8.38 (s, 1H), 8.27 (s, 1H), 8.24 (s, 2H), 7.51 (s, 1H), 7.49 (s, 1H), 7.37 (s, 2H), 7.15 (m, 2H), 4.4 (br s, 1H), 3.98 (s, 3H), 3.6 (br s, 2H), 3.06 (br s, 1H), 2.65 (br s, 1H), 2.81 (br s, 1H), 2.43 (s, 3H), 2.16 (s, 1H), 1.83 (s, 1H).
LRMS (apci, ホ゜シ゛ティフ゛) m/e 479.2 (M+1).
3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]安息香酸-3-S-1-ベンジルピロリジン-3-イルエステル
1H NMR (400 MHz, CDCl3) δ: 7.87 (d, J=7.83 Hz, 1H), 7.82 (d, J=7.83 Hz, 1H), 7.77 (s, 1H), 4.04 (s, 3H).
ステップ2:(3S)-1-ベンジルピロリジン-3-オール。(3S)-3-ヒドロキシピロリジン(2.0 g, 25 mmol)のCH2Cl2溶液(50 mL)を窒素雰囲気下、0℃に冷却し、ベンズアルデヒド(2.92 g, 27.5 mmol)、次いで粉末化 4A モレキュラーシーブ 1 g を加えた。トリアセト水素化ホウ素ナトリウム(7.4 g, 35 mmol)を数回に分け30分以上かけて加え、反応溶液を室温で18時間撹拌した。反応溶液を再度0℃に冷却し、メタノール 10 mL、次いで 1N HCl 5 mL を加えて反応を停止させた。モレキュラーシーブ粉末をガラス濾紙を通す濾過によって取り除き、濾液をジエチルエーテル 20 mL を用いて抽出した。有機層を捨て、水層をまず濃アンモニア水の添加により塩基性化し、EtOAc(20 mLで3回)を用いて抽出した。合わせて抽出液を食塩水 20 mL を用いて洗浄し、 乾燥させ(MgSO4)、濾過し、さらに精製する必要のない透明で黄色い油(3.2 g, 収率73%)が得られるまで減圧下で濃縮した。
1H NMR (400 MHz, CDCl3) δ: 7.2-7.4 (m, 5H), 4.33 (m, 1H), 3.63 (s, 2H), 2.83-3.89 (m, 1H), 2.67 (d, J=9.9 Hz, 1H), 2.53-2.55 (m, 1H), 2.23-2.34 (m, 1H), 2.14-2.20 (m, 2H), 1.70-1.77 (m, 1H).
ステップ3:3-メトキシ-4-ニトロ安息香酸-(3S)-1-ベンジルピロリジン-3-イルエステル。塩化3-メトキシ-4-ニトロベンゾイル(608 mg, 2.82 mmol)の CH2Cl2 溶液(10 mL)を、撹拌した(3S)-1-ベンジルピロリジン-3-オール 500 mg(2.82 mmol)およびピリジン 1 mL の CH2Cl2 溶液(15 mL)に室温で加えた。18時間の撹拌後、反応混液を飽和 NaHCO3 水溶液 20 mL を用いて稀釈し、CH2Cl2(10 mLで2回)を用いて抽出した。合わせた抽出液を食塩水 20 mL を用いて洗浄し、MgSO4を用いて乾燥させ、濾過し、目的のエステルが、高真空下で乾燥させると固体化する黄色い油(780 mg, 収率71%)として得られるまで減圧下で濃縮した。残った固体を 1:1 エーテル-ヘキサンを用いて粉末化した。
1H NMR (400 MHz, CDCl3) δ: 7.83 (d, J=7.83 Hz, 1H), 7.74 (s, 1H), 7.68 (d, J=7.83 Hz, 1H), 7.2-7.4 (m, 5H), 5.44 (br m, 1H), 4.02 (s, 2H), 3.69 (dd, J=30 Hz, J=13 Hz, 1H), 2.8-3.0 (m, 2H), 2.5-2.6 (m, 1H), 2.30-2.45 (m, 1H), 2.0-2.1 (m, 1H).
ステップ4:4-アミノ-3-メトキシ安息香酸-(3S)-1-ベンジルピロリジン-3-イルエステル。化合物340の合成に用いる4-[(ベンジルメチルアミノ)メチル]-2-メトキシフェニルアミンの調製と同様、3-メトキシ-4-ニトロ安息香酸-(3S)-1-ベンジルピロリジン-3-イルエステルのホウ化ニッケル還元によってアニリンを調製した。
1H NMR (400 MHz, CDCl3) δ: 7.54 (d, J=8.21 Hz, 1H), 7.44 (s, 1H), 7.2-7.4 (m, 5H), 6.65 (d, J=8.21 Hz, 1H), 5.38 (br m, 1H), 4.22 (s, 1H), 3.90 (s, 3H), 3.69 (q, J=24.63 Hz, 1H), 3.0 (m, 1H), 2.7-2.9 (m, 2H), 2.5-2.6 (m, 1H), 2.3-2.4 (m, 1H), 1.9-2.1 (m, 1H).
LRMS (apci, ホ゜シ゛ティフ゛) m/e 462.2 (M+1).
ステップ5:3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]安息香酸-(3S)-1-ベンジルピロリジン-3-イルエステル。化合物208の製法に従って、4-アミノ-3-メトキシ安息香酸-(3S)-1-ベンジルピロリジン-3-イルエステルから調製された。
1H NMR (400 MHz, CDCl3) δ: 10.15 (s, 2H), 8.8 (s, 1H), 8.35 (d, J=8.61 Hz, 1H), 8.25 (s, 1H), 7.58 (d, J=8.61 Hz, 1H), 7.5 (s, 1H), 7.30-7.35 (m, 4H), 7.26-7.24 (m, 1H), 5.28 (s, 1H), 3.99 (s, 3H), 3.62 (s, 2H), 2.82 (m, 1H), 2.74 (m, 1H), 2.67 (m, 1H), 2.44 (s, 3H), 2.28 (m, 1H), 1.91 (m, 1H).
LRMS (apci, ホ゜シ゛ティフ゛) m/e 462.2 (M+1).
N-(3-S-1-ベンジルピロリジン-3-イル)-3-メトキシ-4-[3-(5-トリフルオロメチルピラジン-2-イル)ウレイド]ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 10.78 (s, 1H), 10.16 (br s, 1H), 9.07 (s, 1H), 8.84 (s, 1H), 8.37 (d, 1H), 7.63 (d, 1H), 7.56 (s, 1H), 4.01 (s, 3H), 3.83 (s, 3H).
ステップ2:3-メトキシ-4-[3-(5-トリフルオロメチルピラジン-2-イル)ウレイド]安息香酸。撹拌した3-メトキシ-4-[3-(5-トリフルオロメチルピラジン-2-イル)ウレイド]安息香酸メチルエステル(213 mg, 0.575 mmol)の 3:1 MeOH:H2O 溶液(5.75 mL)に、室温、窒素雰囲気下、水酸化リチウム一水和物(240 mg, 5.8 mmol)を加え、反応溶液を65℃に加熱した。温度到達後、懸濁液は徐々に明黄色溶液となった。約4時間後、沈殿が生じたが、反応は一晩続いた。室温まで冷却した後、MeOH をロータリーエバポレーターによって取り除き、水性懸濁液を濃 HCl を用いて pH=5 まで中和した。pH=5 に到達すると、懸濁液は黄色から白色に変化した。その後、懸濁液をセラミック漏斗上の濾紙を通して濾過した。大部分の H2O が取り除かれたとき、残渣をデシケーター内で一晩、高真空下で乾燥させた(133 mg, 収率55%)。
1H NMR (400 MHz, CDCl3) δ: 11.53 (s, 1H), 9.86 (br s, 1H), 8.57 (s, 1H), 8.40 (d, 1H), 8.12 (s, 1H), 7.56 (s, 1H), 7.46 (m, 2H), 7.25 (m, 4H), 4.79 (m, 1H), 4.01 (s, 3H), 3.73 (dd, 2H), 3.22 (m, 2H), 2.76 (m, 1H), 2.47 (m, 2H), 1.76 (m, 1H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 515.1 (M+1).
5-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]-N-(2-ピリジン-2-イルエチル)-2-トリフルオロメチルベンズアミド
1H NMR (400 MHz, CDCl3) δ: 7.33 (s, 1H), 6.98 (s, 1H), 3.92 (s, 3H), 3.85 (s, 3H).
ステップ5:5-メトキシ-4-(4-ニトロフェノキシカルボニルアミノ)-2-トリフルオロメチル安息香酸メチルエステル。5-メトキシ-4-アミノ-2-トリフルオロメチル安息香酸メチルエステル(522 mg, 2.22 mmol)の CH2Cl2 溶液(6.6 mL)に、0℃、窒素雰囲気下、ピリジン(180μL, 2.22 mmol)、次いで固体として p-ニトロフェニルクロロギ酸(448 mg, 2.22 mmol) を加えた。1時間撹拌した後、反応溶液を CH2Cl2 (30 mL)を用いて稀釈し、2N HCl(30 mLで2回) および H2O(30 mLで1回)を用いて洗浄した。有機層を乾燥させ(MgSO4)、濾過し、白い泡として分離される p-ニトロフェニルカルバミン酸(878 mg, 収率96%)が得られるまで濃縮した。
1H NMR (400 MHz, CDCl3) δ: 8.57 (br s, 1H), 8.30 (d, 2H), 7.77 (br s, 1H), 7.40 (d, 2H), 7.37 (s, 1H), 4.03 (s, 3H), 3.94 (s, 3H).
ステップ6:5-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]-2-トリフルオロメチル安息香酸メチルエステル。撹拌した5-メトキシ-4-(4-ニトロフェノキシカルボニルアミノ)-2-トリフルオロメトキシ安息香酸メチルエステル(878 mg, 2.1 mmol)の NMP 溶液(4.2 mL)に、室温、窒素雰囲気下、2-アミノ-5-メチルピラジン(232 mg, 2.1 mmol)を加え、反応溶液を85℃に加熱した。6時間後、反応溶液を室温まで冷却すると沈殿が生じた。沈殿を EtOAc(25 mL) を用いて粉末化し、濾過によって尿素化合物が褐色の固体(470 mg, 収率58%)として得られた。
1H NMR (400 MHz, d6-DMSO) δ: 8.90 (br s, 1H), 8.63 (s, 1H), 8.22 (s, 1H), 7.38 (s, 1H), 4.00 (s, 3H), 2.42 (s, 3H).
LRMS (esi,ネカ゛ティフ゛) m/e 369.0 (M-1)
ステップ8:5-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]-N-(2-ピリジン-2-イルエチル)-2-トリフルオロメチルベンズアミド。ふたをして撹拌した5-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]-2-トリフルオロメチル安息香酸(37 mg, 0.1 mmol)の NMP 溶液(1 mL)に、HBTU(42 mg, 0.11 mmol)を加え、懸濁液を15分間撹拌した。2-アミノエチルピリジン(13μL, 0.11 mmol)、次いで DIEA(35μL, 0.2 mmol)を加え、反応溶液を一晩撹拌した。高真空下、70℃で真空容器から真空容器への移動によって NMP を取り除き、残渣を EtOAc を用いて粉末化し、濾過し、目的とするアミドが褐色の固体(32 mg, 収率68%)として得られた。
1H NMR (400 MHz, d6-DMSO) δ: 8.90 (br s, 1H), 8.66 (d, 1H), 8.61 (s, 1H), 8.52 (t, 1H), 8.23 (s, 1H), 8.10 (br m, 1H), 7.61 (br d, 1H), 7.57 (br m, 1H), 7.07 (s, 1H), 4.00 (s, 3H), 3.62 (m, 2H), 3.11 (m, 2H), 2.42 (s, 3H).
LRMS (esi,ホ゜シ゛ティフ゛) m/e 475.1 (M+1)
(3-ジメチルアミノプロポキシ)-4-[3-(5-メチルピラジン-2-イル)ウレイド]安息香酸。
1H NMR (400 MHz, CDCl3) δ: 7.81 (d, 1H), 7.78 (s, 1H), 7.65 (d, 1H), 4.23 (t, 2H), 3.91 (s, 3H), 2.44 (t, 2H), 2.22 (s, 6H), 2.05 (m, 2H).
ステップ2:4-アミノ-3-(3-ジメチルアミノプロポキシ)安息香酸メチルエステル。撹拌し、冷却(約0℃)した3-(3-ジメチルアミノプロポキシ)-4-ニトロ安息香酸メチルエステル(282 mg, 1.0 mmol)のメタノール溶液(2 mL)および飽和塩化アンモニウム(1 mL)に、亜鉛粉末(2.0 mmol)を加えた。12時間の撹拌後、反応溶液を酢酸エチル 30 mL を用いて稀釈し、10%炭酸ナトリウム(30 mLで2回)、食塩水(30 mLで1回)を用いて洗浄し、乾燥させ(MgSO4)、濾過した。濾液を減圧下で濃縮し、目的とする生産物が褐色の固体(収率88%)として得られた。
1H NMR (400 MHz, CDCl3) δ: 7.52 (d, 1H), 7.48 (s, 1H), 7.25 (s, 1H), 6.65 (d, 1H), 4.29 (br s, 1H), 4.09 (t, 2H), 3.85 (s, 3H), 2.49 (t, 2H), 2.25 (s, 6H), 2.00 (m, 2H).
ステップ3:3-(3-ジメチルアミノプロポキシ)-4-[3-(5-メチルピラジン-2-イル)ウレイド]安息香酸メチルエステル。撹拌し、冷却(約0℃)した4-アミノ-3-(3-ジメチルアミノプロポキシ)安息香酸メチルエステル(252 mg, 1.0 mmol)のトルエン溶液(3.0 mL)に、トリエチルアミン(139μL, 1.0 mmol)およびトリホスゲン(98 mg, 0.33 mmol)を加えた。30分間撹拌した後、5-メチル-2-アミノピラジン(109 mg, 1.0 mmol)を加え、反応溶液を65℃に加熱した。反応溶液を室温まで冷却し、酢酸エチル(50 mL)および水(50 mL)を用いて稀釈した。生じた沈殿を濾取し、減圧下で乾燥させ、目的とする物質が白い固体(収率40%)として得られた。
1H NMR (400 MHz, d6-DMSO) δ: 8.62 (br s, 1H), 8.41 (d, 1H), 8.19 (s, 1H), 7.59 (d, 1H), 7.49 (s, 1H), 4.15 (t, 2H), 3.81 (s, 3H), 2.42 (m, 5H), 2.18 (s, 6H), 2.01 (m, 2H).
ステップ4:3-(3-ジメチルアミノプロポキシ)-4-[3-(5-メチルピラジン-2-イル)ウレイド]安息香酸。撹拌した3-(3-ジメチルアミノプロポキシ)-4-[3-(5-メチルピラジン-2-イル)ウレイド]安息香酸メチルエステル(1.0 g, 3.3 mmol)のメタノール溶液(25 mL)に、水酸化リチウム(2M 水溶液 5 mL)を加えた。反応溶液を60℃に加熱し、12時間撹拌した。反応溶液を室温まで冷却し、1N 塩酸を用いて pH を 5.5 に調整した。生じた沈殿を濾過し、減圧下で乾燥させ、目的とする生産物が褐色の固体(収率52%)として得られた。
1H NMR (400 MHz, d6-DMSO) δ: 8.62 (br s, 1H), 8.39 (d, 1H), 8.21 (s, 1H), 7.59 (d, 1H), 7.43 (s, 1H), 4.15 (t, 2H), 2.42 (m, 5H), 2.18 (s, 6H), 2.01 (m, 2H).
4-[3-(5-メチルピラジン-2-イル)ウレイド]-3-(ピリジン-3-イルメトキシ)安息香酸
1H NMR (400 MHz, CDCl3) δ: 8.71 (s, 1H), 8.62 (d, 1H), 7.88 (m, 3H), 7.79 (d, 1H), 7.39 (m, 1H), 5.31 (s, 2H), 3.98 (s, 3H).
ステップ2:4-アミノ-3-(ピリジン-3-イルメトキシ)安息香酸メチルエステル。撹拌し、冷却(約0℃)した4-ニトロ-3-(ピリジン-3-イルメトキシ)安息香酸メチルエステル(288 mg, 1.0 mmol)のメタノール(2 mL)/飽和塩化アンモニウム水溶液(1 mL)に、亜鉛粉末(131 mg, 2.0 mmol)を加えた。12時間の撹拌後、反応溶液を酢酸エチル 30 mL を用いて稀釈し、10%炭酸ナトリウム水溶液(30 mL で2回)、食塩水(30 mL で1回)を用いて洗浄し、乾燥させ(MgSO4)、濾過した。濾液を減圧下で濃縮し、目的とする生産物が黄色い固体(収率97%)として得られた。
1H NMR (400 MHz, CDCl3) δ: 8.78 (s, 1H), 8.61 (d, 1H), 7.79 (d, 1H), 7.59 (m, 2H), 7.39 (m, 1H), 6.71 (d, 1H), 5.18 (s, 2H), 4.28 (br s, 2H), 3.85 (s, 3H).
ステップ3:4-[3-(5-メチルピラジン-2-イル)ウレイド]-3-(ピリジン-3-イルメトキシ)安息香酸メチルエステル。撹拌し、冷却(約0℃)した4-アミノ-3-(ピリジン-3-イルメトキシ)安息香酸メチルエステル(258 mg, 1.0 mmol)のトルエン溶液(3 mL)に、トリエチルアミン(139 μL, 1.0 mmol)およびトリホスゲン(98 mg, 0.33 mmol)を加えた。30分間の撹拌後、5-メチル-2-アミノピラジン(109 mg, 1.0 mmol)を加え、反応溶液を65℃に加熱した。反応溶液を室温まで冷却し、酢酸エチル(50 mL)および水(50 mL)を用いて稀釈した。生じた沈殿を濾過し、減圧下で乾燥させ、目的とする物質が白い固体(収率47%)として得られた。
1H NMR (400 MHz, d6-DMSO) δ: 10.29 (s, 1H), 8.79 (s, 1H), 8.68 (d, 1H), 8.59 (br s, 1H), 8.48 (d, 1H), 7.70 (s, 1H), 7.62 (d, 1H), 7.51 (m, 1H), 5.32 (s, 2H), 3.88 (s, 3H), 2.32 (s, 3H).
ステップ4:4-[3-(5-メチルピラジン-2-イル)ウレイド]-3-(ピリジン-3-イルメトキシ安息香酸。撹拌した4-[3-(5-メチルピラジン-2-イル)ウレイド]-3-(ピリジン-3-イルメトキシ安息香酸メチルエステル(1.3 g, 3.3 mmol)のメタノール溶液(25 mL)に、水酸化リチウム(2M 水溶液を5 mL)を加えた。反応溶液を60℃に加熱し、12時間撹拌した。反応溶液を室温まで冷却し、1N 塩酸を用いて pH を 5.5 に調整した。生じた沈殿を濾過し、減圧下で乾燥させ、目的とする物質が褐色の固体(収率90%)として得られた。
1H NMR (400 MHz, d6-DMSO) δ: 10.29 (s, 1H), 8.79 (s, 1H), 8.68 (d, 1H), 8.59 (br s, 1H), 8.48 (d, 1H), 7.70 (s, 1H), 7.62 (d, 1H), 7.51 (m, 1H), 5.32 (s, 2H), 2.32 (s, 3H).
3-(3-ジメチルアミノプロポキシ)-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 10.18 (s, 1H), 8.56 (br s, 1H), 8.20 (d, 1H), 8.11 (s, 1H), 7.43 (d, 1H), 7.40 (s, 1H), 4.03 (m, 2H), 2.40 (m, 2H), 2.33 (s, 3H), 2.05 (s, 6H), 1.91 (m, 2H).
LRLCMS (esi, ホ゜シ゛ティフ゛) m/e 374.2 (M+1).
3-(3-ジメチルアミノプロポキシ)-N,N-ジメチル-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンズアミド
1H NMR (400 MHz, CDCl3) δ: 11.30 (br s, 1H), 8.39 (d, 1H), 8.29 (s, 1H), 8.20 (s, 1H), 7.78 (br s, 1H), 7.07 (s, 1H), 7.04 (d, 1H), 4.16 (t, 2H), 2.55 (s, 3H), 2.53 (m, 2H), 2.26 (s, 6H), 2.10 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 401.1 (M+1).
N-ベンジル-3-(3-ジメチルアミノプロポキシ)-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンズアミド
1H NMR (400 MHz, CDCl3) δ: 8.43 (d, 1H), 8.26 (s, 1H), 8.20 (s, 1H), 7.91 (br s, 1H), 7.56 (s, 1H), 7.38 (m, 4H), 7.31 (m, 1H), 6.41 (m, 1H), 4.64 (d, 2H), 4.20 (t, 2H), 2.53 (s, 3H), 2.52 (m, 2H), 2.24 (s, 6H), 2.14 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 463.2 (M+1).
N-ベンジル-3-(3-ジメチルアミノプロポキシ)-N-メチル-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンズアミド
1H NMR (400 MHz, CDCl3) δ: 8.37 (br s, 1H), 8.25 (s, 1H), 8.18 (s, 1H), 7.37 (m, 4H), 7.31 (m, 1H), 7.18 (m, 2H), 4.67 (br m, 2H), 4.07 (br m, 2H), 2.99 (br s, 3H), 2.53 (s, 3H), 2.50 (br m, 2H), 2.24 (s, 6H), 2.06 (br m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 477.2 (M+1).
3-(3-ジメチルアミノプロポキシ)-4-[3-(5-メチルピラジン-2-イル)ウレイド]-N-(2-モルフォリン-4-イルエチル)ベンズアミド
1H NMR (400 MHz, CDCl3) δ: 8.44 (d, 1H), 8.31 (s, 1H), 8.21 (s, 1H), 7.90 (br s, 1H), 7.55 (s, 1H), 7.24 (d, 1H), 6.76 (m, 1H), 4.20 (t, 2H), 3.76 (m, 4H), 3.56 (m, 2H), 2.61 (m, 2H), 2.53 (m, 7H), 2.24 (s, 6H), 2.13 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 486.2 (M+1).
3-(3-ジメチルアミノプロポキシ)-4-[3-(5-メチルピラジン-2-イル)ウレイド]-N-(2-(1-メチルピロリジン-2-イル)エチル]ベンズアミド
1H NMR (400 MHz, CDCl3) δ: 11.35 (br s, 1H), 8.42 (s, 1H), 8.40 (s, 1H), 8.24 (s, 1H), 8.20 (s, 1H), 7.57 (s, 1H), 7.46 (br s, 1H), 7.20 (m, 1H), 4.19 (m, 2H), 3.76 (m, 1H), 3.44 (m, 1H), 3.15 (m, 1H), 2.54 (s, 3H), 2.42 (m, 1H), 2.37 (s, 3H), 2.25 (s, 6H), 2.22 (m, 1H), 2.13 (m, 2H), 1.90 (m, 2H), 1.77 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 484.3 (M+1).
N-(2-ジメチルアミノエチル)-3-(3-ジメチルアミノプロポキシ)-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンズアミド
1H NMR (400 MHz, CDCl3) δ: 11.38 (br s, 1H), 8.42 (d, 1H), 8.30 (s, 1H), 8.20 (s, 1H), 7.96 (br s, 1H), 7.53 (s, 1H), 7.27 (d, 1H), 6.79 (m, 1H), 4.20 (m, 2H), 3.53 (m, 2H), 2.52 (m, 2H), 2.52 (s, 3H), 2.26 (m, 2H), 2.24 (s, 6H), 2.22 (s, 6H), 2.12 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 444.2 (M+1).
N-(3-S-1-ベンジルピロリジン-3-イル)-3-(3-ジメチルアミノプロポキシ)-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンズアミド
1H NMR (400 MHz, CDCl3) δ: 8.61 (br s, 1H), 8.45 (d, 1H), 8.20 (s, 1H), 8.16 (m, 1H), 7.51 (s, 1H), 7.39 (d, 1H), 7.31 (m, 4H), 7.16 (m, 1H), 4.72 (m, 1H), 4.18 (m, 2H), 3.72 (dd, 2H), 3.04 (m, 1H), 2.96 (m, 1H), 2.69 (m, 1H), 2.53 (m, 2H), 2.51 (s, 3H), 2.40 (m, 2H), 2.25 (s, 6H), 2.11 (m, 2H), 1.76 (m, 1H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 532.2 (M+1).
4-[3-(5-メチルピラジン-2-イル)ウレイド]-3-(ピリジン-3-イルメトキシ)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 10.27 (s, 1H), 8.82 (s, 1H), 8.66 (d, 1H), 8.60 (br s, 1H), 8.29 (d, 1H), 8.03 (m, 1H), 8.00 (s, 1H), 7.76 (s, 1H), 7.56 (d, 1H), 7.50 (m, 1H), 7.37 (br m, 1H), 7.26 (br s, 1H), 5.32 (s, 2H), 2.32 (s, 3H).
LRMS (apci, ホ゜シ゛ティフ゛) m/e 379.1 (M+1).
N-メチル-4-[3-(5-メチルピラジン-2-イル)ウレイド]-3-(ピリジン-3-イルメトキシ)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 10.25 (s, 1H), 8.80 (s, 1H), 8.60 (m, 3H), 8.26 (d, 1H), 8.03 (d, 1H), 7.78 (s, 1H), 7.52 (m, 2H), 7.37 (m, 1H), 5.34 (s, 2H), 2.79 (d, 3H), 2.36 (s, 3H).
LRMS (apci, ホ゜シ゛ティフ゛) m/e 393.2 (M+1).
N,N-ジメチル-4-[3-(5-メチルピラジン-2-イル)ウレイド]-3-(ピリジン-3-イルメトキシ)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 10.16 (s, 1H), 8.80 (s, 1H), 8.66 (d, 1H), 8.58 (s, 1H), 8.28 (d, 1H), 7.96 (d, 1H), 7.50 (m, 1H), 7.37 (br s, 1H), 7.25 (s, 1H), 7.03 (d, 1H), 5.30 (s, 2H), 2.95 (s, 6H), 2.33 (s, 3H).
LRMS (apci, ホ゜シ゛ティフ゛) m/e 407.4 (M+1).
N-ベンジル-4-[3-(5-メチルピラジン-2-イル)ウレイド]-3-(ピリジン-3-イルメトキシ)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 10.23 (s, 1H), 9.05 (t, 1H), 8.82 (s, 1H), 8.67 (d, 1H), 8.58 (br s, 1H), 8.33 (d, 1H), 8.00 (d, 1H), 7.78 (s, 1H), 7.59 (d, 1H), 7.50 (m, 1H), 7.33 (m, 4H), 7.25 (m, 1H), 5.32 (s, 2H), 4.50 (d, 2H), 2.32 (s, 3H).
LRMS (apci, ホ゜シ゛ティフ゛) m/e 469.1 (M+1).
N-ベンジル-N-メチル-4-[3-(5-メチルピラジン-2-イル)ウレイド]-3-(ピリジン-3-イルメトキシ)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 10.16 (s, 1H), 8.76 (br s, 1H), 8.64 (d, 1H), 8.57 (m, 1H), 8.28 (br m, 1H), 7.95 (br m, 1H), 7.48 (m, 1H), 7.40-7.23 (br m, 7H), 7.06 (m, 1H), 5.23 (br m, 2H), 4.62 (br m, 2H), 2.88 (s, 3H), 2.33 (s, 3H).
LRMS (apci, ホ゜シ゛ティフ゛) m/e 483.3 (M+1).
4-[3-(5-メチルピラジン-2-イル)ウレイド]-N-(2-モルフォリン-4-イルエチル)-3-(ピリジン-3-イルメトキシ)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 10.27 (s, 1H), 8.81 (s, 1H), 8.66 (d, 1H), 8.61 (br s, 1H), 8.52 (t, 1H), 8.29 (d, 1H), 8.03 (d, 1H), 7.76 (s, 1H), 7.52 (m, 2H), 7.36 (m, 1H), 5.33 (s, 2H), 3.56 (m, 4H), 3.40 (m, 2H), 2.48 (m, 2H), 2.43 (m, 4H), 2.34 (s, 3H).
LRMS (apci, ホ゜シ゛ティフ゛) m/e 492.4 (M+1).
4-[3-(5-メチルピラジン-2-イル)ウレイド]-N-[2-(1-メチルピロリジン-2-イル)エチル]-3-(ピリジン-3-イルメトキシ)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 10.21 (s, 1H), 8.81 (s, 1H), 8.64 (d, 1H), 8.58 (br s, 1H), 8.49 (m, 1H), 8.33 (d, 1H), 8.00 (d, 1H), 7.70 (s, 1H), 7.52 (m, 2H), 7.34 (m, 1H), 5.33 (s, 2H), 3.28 (m, 2H), 2.95 (m, 1H), 2.36 (s, 3H), 2.21 (s, 3H), 2.04 (m, 2H), 1.90 (m, 2H), 1.62 (m, 2H), 1.44 (m, 2H).
LRMS (apci, ホ゜シ゛ティフ゛) m/e 490.3 (M+1).
N-(2-ジメチルアミノエチル)-4-[3-(5-メチルピラジン-2-イル)ウレイド]-3-(ピリジン-3-イルメトキシ)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 10.24 (s, 1H), 8.82 (s, 1H), 8.66 (d, 1H), 8.60 (br s, 1H), 8.43 (t, 1H), 8.30 (d, 1H), 8.02 (d, 1H), 7.74 (s, 1H), 7.52 (m, 2H), 7.35 (br m, 1H), 5.32 (s, 2H), 3.36 (m, 2H), 2.39 (m, 2H), 2.33 (s, 3H), 2.18 (s, 6H).
LRMS (apci, ホ゜シ゛ティフ゛) m/e 450.2 (M+1).
N-(3-S-1-ベンジルピロリジン-3-イル)-4-[3-(5-メチルピラジン-2-イル)ウレイド]-3-(ピリジン-3-イルメトキシ)ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 10.26 (s, 1H), 8.82 (s, 1H), 8.66 (d, 1H), 8.60 (br s, 1H), 8.47 (d, 1H), 8.28 (d, 1H), 8.02 (d, 1H), 7.74 (s, 1H), 7.55 (d, 1H), 7.51 (m, 1H), 7.32 (m, 4H), 7.24 (m, 1H), 5.31 (s, 2H), 4.40 (m, 1H), 3.60 (s, 2H), 2.80 (m, 1H), 2.64 (m, 1H), 2.45 (m, 2H), 2.34 (s, 3H), 2.15 (m, 1H), 1.85 (m, 1H).
LRMS (apci, ホ゜シ゛ティフ゛) m/e 538.2 (M+1).
1-[2-(3-ジメチルアミノプロポキシ)-5-メチルフェニル]-3-ピラジン-2-イル尿素
1H NMR (400 MHz, CDCl3) δ: 8.45 (s, 1H), 8.39 (br s, 1H), 8.22 (s, 1H), 8.21 (d, 1H), 8.19 (d, 1H), 4.09 (t, 2H), 2.55 (t, 2H), 2.36 (s, 3H), 2.26 (s, 6H), 2.05 (m, 2H).
LRMS (apci, ホ゜シ゛ティフ゛) m/e 330.10 (M+1).
1-[2-(2-ジメチルアミノエトキシ)-5-メチルフェニル]-3-ピラジン-2-イル尿素
1H NMR (400 MHz, d6-DMSO) δ: 8.79 (br s, 1H), 8.25 (s, 1H), 8.22 (s, 1H), 8.05 (s, 1H), 6.95 (d, 1H), 6.80 (d, 1H), 4.15 (t, 2H), 2.55 (s, 3H), 2.31 (t, 2H), 2.26 (s, 6H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 316.21 (M+1).
1-[5-メチル-2-(ピリジン-3-イルメトキシ)フェニル]-3-ピラジン-2-イル尿素
1H NMR (400 MHz, CDCl3) δ: 8.82 (s, 1H), 8.65 (d, 1H), 8.35 (s, 1H), 8.30 (s, 1H), 8.21 (s, 2H), 8.05 (s, 1H), 7.81 (m, 2H), 7.35 (m, 1H), 6.90 (dd, 2H), 5.15 (s, 2H), 2.39 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 336.21 (M+1).
1-{5-メチル-2-[3-(2-オキソピロリジン-1-イル)プロポキシ]フェニル}-3-ピラジン-2-イル尿素
1H NMR (400 MHz, d6-DMSO) δ: 8.79 (s, 1H), 8.29 (s, 1H), 8.25 (s, 1H), 8.05 (s, 1H), 6.92 (d, 1H), 6.79 (d, 1H), 3.99 (t, 2H), 3.38 (m, 4H), 2.22 (s, 3H), 2.20 (t, 2H), 2.00 (t, 2H), 1.91 (t, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 392.2 (M+1).
1-[5-メチル-2-(2-モルフォリン-4-イルエトキシ)フェニル]-3-ピラジン-2-イル尿素
1H NMR (400 MHz, d6-DMSO) δ: 8.79 (s, 1H), 8.29 (d, 1H), 8.25 (d, 1H), 8.05 (s, 1H), 6.95 (d, 1H), 6.79 (d, 1H), 4.19 (t, 2H), 3.59 (m, 4H), 2.80 (t, 2H), 2.49 (m, 4H), 2.22 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 358.2 (M+1).
1-[5-メチル-2-(3-モルフォリン-4-イルプロポキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素
1H NMR (400 MHz, d6-DMSO) δ: 9.01 (s, 1H), 8.62 (br s, 1H), 8.22 (s, 1H), 8.19 (s, 1H), 8.05 (s, 1H), 6.91 (d, 1H), 6.79 (d, 1H), 4.05 (t, 2H), 3.59 (m, 4H), 2.48 (s, 3H), 2.45 (t, 2H), 2.35 (m, 4H), 2.21 (m, 4H), 2.21 (s, 3H), 2.00 (t, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 386.31 (M+1).
1-[2-(3-ジメチルアミノプロポキシ)-5-メチルフェニル]-3-(5-メチルピラジン-2-イル)尿素
1H NMR (400 MHz, CDCl3) δ: 8.37 (s, 1H), 8.19 (s, 1H), 8.18 (s, 1H), 8.09 (br s, 1H), 6.80 (dd, 2H), 4.05 (t, 2H), 2.55 (t, 2H), 2.54 (s, 3H), 2.36 (s, 3H), 2.26 (s, 6H), 2.05 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 344.20 (M+1).
1-[5-メチル-2-(2-モルフォリン-4-イルエトキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素
1H NMR (400 MHz, CDCl3) δ: 10.79 (br s, 1H), 8.82 (s, 1H), 8.59 (s, 1H), 8.19 (s, 1H), 8.05 (s, 1H), 6.81 (dd, 2H), 4.20 (t, 2H), 3.75 (m, 4H), 2.91 (t, 2H), 2.61 (m, 4H), 2.55 (s, 3H), 2.35 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 372.1 (M+1).
1-(5-メチルピラジン-2-イル)-3-[5-メチル-2-(ピリジン-2-イルメトキシ)フェニル]尿素
1H NMR (400 MHz, CDCl3) δ: 8.61 (d, 1H), 8.29 (s, 1H), 8.11 (s, 1H), 7.61 (t, 1H), 7.31 (d, 1H), 7.18 (t, 1H), 6.88 (d, 1H), 6.75 (d, 1H), 5.18 (s, 2H), 2.30 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 372.2 (M+1).
1-(5-メチルピラジン-2-イル)-3-[5-メチル-2-(ピリジン-4-イルメトキシ)フェニル]尿素
1H NMR (400 MHz, d6-DMSO) δ: 8.84 (s, 1H), 8.55 (d, 2H), 7.91 (s, 1H), 7.47 (d, 2H), 6.88 (d, 1H), 6.72 (d, 1H), 5.28 (s, 2H), 2.22 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 350.21 (M+1).
1-(5-メチルピラジン-2-イル)-3-[5-メチル-2-(ピリジン-3-イルメトキシ)フェニル]尿素
1H NMR (400 MHz, CDCl3) δ: 8.82 (s, 1H), 8.68 (m, 2H), 8.25 (s, 1H), 8.20 (s, 1H), 7.84 (d, 1H), 7.38 (m, 1H), 6.99 (s, 1H), 6.88 (d, 1H), 6.80 (d, 1H), 5.10 (s, 2H), 2.38 (s, 3H), 2.35 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 350.21 (M+1).
1-[2-(2-ジメチルアミノエトキシ)-5-メチルフェニル]-3-(5-メチルピラジン-2-イル)尿素
1H NMR (400 MHz, d6-DMSO) δ: 8.69 (s, 1H), 8.18 (s, 1H), 8.03 (s, 1H), 6.95 (d, 1H), 6.79 (d, 1H), 4.11 (t, 2H), 2.72 (t, 2H), 2.43 (s, 3H), 2.25 (s, 3H), 2.22 (s, 6H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 330.20 (M+1).
1-(5-メチルピラジン-2-イル)-3-[2-(ピリジン-3-イルメトキシ)-5-トリフルオロメチルフェニル]尿素
1H NMR (400 MHz, d6-DMSO) δ: 8.81 (s, 1H), 8.69 (s, 1H), 8.65 (s, 1H), 8.59 (br s, 1H), 8.01 (d, 1H), 7.45 (t, 1H), 7.30 (br s, 1H), 5.39 (s, 2H), 2.35 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 404.10 (M+1).
1-[5-メチル-2-(6-メチルピリジン-3-イルメトキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素
1-(5-メチルピラジン-2-イル)-3-[5-メチル-2-(2-ピリジン-2-イルエトキシ)フェニル]尿素
ステップ3:5-メチル-2-(2-ピリジン-2-イルエトキシ)フェニルアミンを用いて、化合物266の製法に従って尿素形成させた(収率37%)。
た。
1H NMR (400 MHz, CDCl3) δ: 10.07 (br s, 1H), 8.65 (d, 1H), 8.45 (br s, 1H), 8.21 (s, 1H), 7.85 (s, 1H), 7.59 (t, 1H), 7.29 (t, 1H), 6.80 (dd, 2H), 4.49 (t, 2H), 3.39 (t, 2H), 2.49 (s, 3H), 2.39 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 364.14 (M+1).
1-(5-メチルピラジン-2-イル)-3-[5-メチル-2-(3-ピリジン-2-イルプロポキシ)フェニル]尿素
ステップ3:5-メチル-2-(3-ピリジン-2-イルプロポキシ)フェニルアミンを用いて、化合物266の製法に従って尿素形成させた(収率5%)。
た。
1H NMR (400 MHz, CDCl3) δ: 10.89 (br s, 1H), 8.59 (d, 1H), 8.49 (s, 1H), 8.45 (br s, 1H), 8.22 (s, 1H), 8.15 (s, 1H), 7.59 (t, 1H), 7.15 (d, 2H), 6.88 (dd, 2H), 4.05 (t, 2H), 3.10 (t, 2H), 2.45 (s, 3H), 2.40 (t, 2H), 2.35 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 378.10 (M+1).
1-(5-メチルピラジン-2-イル)-3-[5-メチル-2-(3-ピリジン-4-イルプロポキシ)フェニル]尿素
ステップ3:5-メチル-2-(4-ピリジン-2-イルプロポキシ)フェニルアミンを用いて、化合物266の製法に従って尿素形成させた(収率28%)。
た。
1H NMR (400 MHz, CDCl3) δ: 11.15 (br s, 1H), 8.51 (d, 2H), 8.25 (s, 1H), 8.20 (s, 1H), 7.79 (s, 1H), 7.75 (s, 1H), 7.15 (d, 2H), 6.82 (d, 1H), 6.75 (d, 1H), 4.05 (t, 2H), 2.91 (t, 2H), 2.40 (s, 3H), 2.36 (s, 3H), 2.25 (m, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 378.16 (M+1).
1-{2-[2-(ベンジルメチルアミノ)エトキシ]-5-メチルフェニル}-3-[5-メチルピラジン-2-イル]尿素
ステップ3:2-[2-(ベンジルメチルアミノ)エトキシ]-5-メチルフェニルアミンを用いて、化合物266の製法に従って尿素形成させた(収率17%)。
1H NMR (400 MHz, CDCl3) δ: 10.70 (br s, 1H), 8.49 (s, 1H), 8.20 (s, 1H), 7.95 (s, 1H), 7.85 (s, 1H), 7.32 (m, 5H), 6.85 (s, 2H), 4.15 (t, 2H), 3.62 (s, 2H), 2.49 (s, 3H), 2.33 (s, 3H), 2.29 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 406.01 (M+1).
1-{5-メチル-2-(1-メチルピペリジン-3-イルメトキシ)フェニル}-3-(5-メチルピラジン-2-イル)尿素
ステップ3:5-メチル-2-(1-メチルピペリジン-3-イルメトキシ)フェニルアミンを用いて、化合物266の製法に従って尿素形成させた(収率16%)。
1H NMR (400 MHz, CDCl3) δ: 11.25 (br s, 1H), 8.45 (br s, 1H), 8.35 (s, 1H), 8.22 (s, 2H), 6.80 (d, 1H), 6.74 (d, 1H), 3.80 (m, 2H), 3.15 (br d, 1H), 2.80 (br d, 1H), 2.51 (s, 3H), 2.35 (s, 3H), 2.30 (m, 1H), 2.22 (s, 3H), 1.50-2.00 (m, 6H), 1.00-1.25 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 370.01 (M+1).
1-{2-[2-(4-ジメチルアミノフェニル)エトキシ]-5-メチルフェニル}-3-(5-メチルピラジン-2-イル)尿素
ステップ3:2-[2-(4-ジメチルアミノフェニル)エトキシ]-5-メチルフェニルアミンを用いて、化合物266の製法に従って尿素形成させた(収率10%)。
1H NMR (400 MHz, CDCl3) δ: 11.15 (br s, 1H), 8.35 (s, 1H), 8.25 (s, 1H), 7.80 (m, 2H), 7.25 (m, 2H), 6.82 (s, 2H), 6.75 (d, 2H), 4.25 (t, 2H), 3.20 (t, 2H), 2.99 (s, 6H), 2.55 (s, 3H), 2.41 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 405.901 (M+1).
1-(5-メチルピラジン-2-イル)-3-[5-メチル-2-(3-ピリジン-3-イルプロポキシ)フェニル]尿素
ステップ3:5-メチル-2-(3-ピリジン-3-イルプロポキシ)フェニルアミンを用いて、化合物266の製法に従って尿素形成させた(収率16%)。
1H NMR (400 MHz, CDCl3) δ: 10.95 (br s, 1H), 8.51 (m, 2H), 8.35 (s, 1H), 8.25 (s, 1H), 8.15 (s, 1H), 7.80 (s, 1H), 7.50 (d, 1H), 7.21 (t, 1H), 6.79 (d, 1H), 6.75 (d, 1H), 4.09 (t, 2H), 2.90 (t, 2H), 2.45 (s, 3H), 2.35 (s, 3H), 2.25 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 377.91 (M+1).
1-[2-(2-ジメチルアミノ-1-ジメチルアミノメチルエトキシ)-5-メチルフェニル]-3-(5-メチルピラジン-2-イル)尿素
ステップ3:2-(2-アミノ-4-メチルフェノキシ)-N,N,N',N'-テトラメチルプロパン-1,3-ジアミンを用いて、化合物266の製法に従って尿素形成させた(収率4%)。
1H NMR (400 MHz, CDCl3) δ: 9.69 (br s, 1H), 8.95 (br s, 1H), 8.19 (s, 1H), 8.05 (s, 1H), 6.80 (dd, 2H), 4.19 (m, 1H), 4.09 (m, 1H), 3.05 (m, 1H), 2.65 (m, 2H), 2.50 (s, 3H), 2.45 (s, 6H), 2.38 (s, 6H), 2.35 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 386.92 (M+1).
1-[5-メチル-2-(2-S-1-メチルピロリジン-2-イルメトキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素
ステップ3:5-メチル-2-(1-メチルピロリジン-2-S-イルメトキシ)フェニルアミンを用いて、化合物266の製法に従って尿素形成させた(収率12%)。
1H NMR (400 MHz, d6-DMSO) δ: 10.10 (s, 1H), 9.85 (br s, 1H), 9.65 (br s, 1H), 8.78 (s, 1H), 8.25 (s, 1H), 6.90 (s, 1H), 7.02 (d, 1H), 6.85 (d, 1H), 4.33 (br s, 2H), 3.88 (m, 1H), 3.59 (m, 1H), 3.19 (m, 1H), 2.99 (d, 2H), 2.70-2.85 (m, 2H), 2.45 (s, 3H), 2.29 (s, 3H), 1.80-2.10 (m, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 355.91 (M+1).
1-[2-(2-S-1-ベンジルピロリジン-2-イルメトキシ)-5-メチルフェニル]-3-(5-メチルピラジン-2-イル)尿素
ステップ3:5-メチル-2-(1-ベンジルピロリジン-2-S-イルメトキシ)フェニルアミンを用いて、化合物266の製法に従って尿素形成させた(収率3%)。
1H NMR (400 MHz, d6-DMSO) δ: 9.95 (s, 1H), 9.90 (br s, 1H), 9.59 (br s, 1H), 8.69 (s, 1H), 8.10 (s, 1H), 7.89 (s, 1H), 7.25-7.50 (m, 6H), 6.96 (d, 1H), 6.90 (d, 1H), 4.75 (d, 2H), 4.33 (m, 4H), 4.10 (m, 2H), 2.40 (s, 3H), 2.25 (s, 3H), 1.80-2.10 (m, 3H), 1.10-1.30 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 432.31 (M+1).
1-(5-メチルピラジン-2-イル)-3-[5-メチル-2-(2-ピロリジン-1-イルエトキシ)フェニル]尿素
1H NMR (400 MHz, d6-DMSO) δ: 10.01 (s, 1H), 9.85 (br s, 1H), 9.72 (br s, 1H), 8.75 (s, 1H), 8.25 (s, 1H), 8.01 (s, 1H), 7.01 (d, 1H), 6.80 (d, 1H), 4.40 (t, 2H), 3.62 (m, 4H), 3.21 (m, 2H), 2.40 (s, 3H), 2.25 (s, 3H), 2.00 (m, 2H), 1.88 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 356.2 (M+1).
1-{5-メチル-2-[2-(1-メチルピロリジン-2-イル)エトキシ]フェニル}-3-(5-メチルピラジン-2-イル)尿素
1H NMR (400 MHz, d6-DMSO) δ: 10.01 (s, 1H), 9.85 (br s, 1H), 9.72 (br s, 1H), 8.75 (s, 1H), 8.25 (s, 1H), 8.01 (s, 1H), 7.01 (d, 1H), 6.80 (d, 1H), 4.20 (m, 3H), 3.00-4.00 (m, 11H), 2.80 (d, 2H), 2.40 (s, 3H), 2.25 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 370.2 (M+1).
1-[2-(3H-イミダゾール-4-イルメトキシ)-5-メチルフェニル]-3-(5-メチルピラジン-2-イル)尿素
1-(5-メチルピラジン-2-イル)-3-[5-メチル-2-(2-ピリジン-3-イルエトキシ)フェニル]尿素
1-[5-メチル-2-(3-ピペリジン-1-イルプロポキシ)フェニル]-3-[(5-メチルピラジン-2-イル)尿素
1H NMR (400 MHz, CDCl3) δ: 11.21 (br s, 1H), 8.35 (s, 1H), 8.25 (s, 2H), 8.15 (s, 1H), 6.80 (dd, 2H), 4.15 (t, 2H), 2.53 (t, 2H), 2.52 (s, 3H), 2.45 (m, 4H), 2.39 (s, 3H), 2.10 (m, 2H), 1.61 (m, 4H), 1.45 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 384.2 (M+1).
1-[5-メチル-2-(1-メチルピペリジン-4-イルオキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素
1-[2-(1-ベンジルピペリジン-4-イルオキシ)-5-メチルフェニル]-3-(5-メチルピラジン-2-イル)尿素
1-[5-メチル-2-(3-(S)-1-メチルピペリジン-3-イルメトキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素
1H NMR (400 MHz, CDCl3) δ: 11.25 (br s, 1H), 8.45 (br s, 1H), 8.35 (s, 1H), 8.22 (s, 2H), 6.80 (d, 1H), 6.74 (d, 1H), 3.80 (m, 2H), 3.15 (br d, 1H), 2.80 (br d, 1H), 2.51 (s, 3H), 2.35 (s, 3H), 2.30 (m, 1H), 2.22 (s, 3H), 1.50-2.00 (m, 6H), 1.00-1.25 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 370.0 (M+1).
1-[5-メチル-2-(3-(R)-1-メチルピペリジン-3-イルメトキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素
1H NMR (400 MHz, CDCl3) δ: 11.25 (br s, 1H), 8.45 (br s, 1H), 8.35 (s, 1H), 8.22 (s, 2H), 6.80 (d, 1H), 6.74 (d, 1H), 3.80 (m, 2H), 3.15 (br d, 1H), 2.80 (br d, 1H), 2.51 (s, 3H), 2.35 (s, 3H), 2.30 (m, 1H), 2.22 (s, 3H), 1.50-2.00 (m, 6H), 1.00-1.25 (m, 2H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 370.0 (M+1).
1-(5-メチルピラジン-2-イル)-3-[5-メチル-2-(1-ピリジン-3-イルエトキシ)フェニル]尿素
1H NMR (400 MHz, CDCl3) δ: 11.49 (br s, 1H), 8.81 (s, 1H), 8.73 (s, 1H), 8.52 (d, 1H), 8.35 (s, 1H), 8.25 (s, 1H), 8.18 (s, 1H), 7.80 (s, 1H), 7.72 (d, 1H), 7.20 (t, 1H), 6.70 (d, 1H), 6.65 (d, 1H), 5.49 (q, 1H), 2.50 (s, 3H), 2.30 (s, 3H), 1.75 (d, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 363.8 (M+1).
1-[5-メチル-2-(1-メチルピペリジン-2-イルメトキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素
1H NMR (400 MHz, CDCl3) δ: 10.90 (br s, 1H), 8.45 (s, 1H), 8.21 (s, 1H), 8.18 (s, 1H), 7.80 (s, 1H), 6.80 (s, 2H), 4.51 (m, 1H), 2.58-3.00 (m, 4H), 2.52 (s, 3H), 2.46 (s, 3H), 2.35 (s, 3H), 1.50-2.25 (m, 7H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 369.9 (M+1).
1-(5-メチルピラジン-2-イル)-3-[5-メチル-2-(テトラヒドロフラン-2-イルメトキシ)フェニル]尿素
1H NMR (400 MHz, CDCl3) δ: 11.25 (br s, 1H), 8.49 (s, 1H), 8.40 (s, 1H), 8.22 (s, 1H), 8.16 (s, 1H), 6.80 (s, 2H), 4.42 (m, 1H), 3.80-4.10 (m, 4H), 2.52 (s, 3H), 2.35 (s, 3H), 1.20-2.20 (m, 4H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 342.9 (M+1).
1-[5-メチル-2-(1-メチルピペリジン-4-イルメトキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素
1H NMR (400 MHz, CDCl3) δ: 11.18 (br s, 1H), 8.62 (br s, 1H), 8.38 (br s, 1H), 8.25 (s, 1H), 8.18 (s, 1H), 6.82 (d, 1H), 6.78 (d, 1H), 3.85 (d, 2H), 2.90 (br d, 2H), 2.51 (s, 3H), 2.35 (m, 6H), 1.50-2.10 (m, 7H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 369.2 (M+1).
1-[5-メチル-2-(1-メチルピペリジン-3-イルオキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素
1H NMR (400 MHz, CDCl3) δ: 10.75 (br s, 1H), 8.59 (br s, 1H), 8.18 (s, 1H), 8.05 (s, 1H), 7.62 (s, 1H), 6.90 (d, 1H), 6.80 (d, 1H), 4.40 (m, 1H), 2.58 (s, 3H), 2.39 (s, 6H), 1.60-2.80 (m, 8H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 356.1 (M+1).
1-(5-メチルピラジン-2-イル)-3-[5-メチル-2-(1,2,3,4-テトラヒドロキノリン-3-イルメトキシ)フェニル]尿素
1H NMR (400 MHz, CDCl3) δ: 9.44 (s, 1H), 8.85 (s, 1H), 8.17 (d, 1H), 7.96 (d, 1H), 7.84 (dd, 1H), 7.62 (dd, 1H), 4.02 (s, 3H).
ステップ2:1,2,3,4-テトラヒドロキノリン-3-カルボン酸メチルエステルおよび1-エチル-1,2,3,4-テトラヒドロキノリン-3-カルボン酸メチルエステル。室温で撹拌したキノリン-3-カルボン酸メチルエステル(244 mg, 1.3 mmol)の氷酢酸溶液(13 mL)に、NaBH4 (345 mg, 9.1 mmol)を何回にも分けて加えた(活発な反応)。添加完了後、反応溶液は暗黄色であった。3時間撹拌した後、反応溶液の色は淡黄色となった。反応溶液を H2O 50 mL および CH2Cl2 50 mL へと注ぎ入れ、15分間急速に撹拌した。層が分離し、有機層は濃縮して黄色い油になった。15/85 EtOAc/ヘキサンを用いる TLC は、出発物質の完全な消滅および2つの新たな低 Rf スポットを示した。化合物を Biotage 12M カラム(CH2Cl2を用いて導かれる)を用いてクロマトグラフし、15/85 EtOAc/ヘキサンを用いて溶出させた。高 Rf スポットは、N-エチル化生産物(123 mg, 収率43%)に対応する。低 Rf スポットは、目的とするテトラヒドロキノリン-3-カルボン酸メチルエステル(93 mg, 収率37%)に対応する。
N-エチル誘導体:1H NMR (400 MHz, CDCl3) δ: 7.08 (dd, 1H), 6.99 (d, 1H), 6.60 (m, 2H), 3.73 (s, 3H), 3.42 (m, 3H), 3.27 (m, 1H), 2.98 (m, 3H), 1.14 (t, 3H); N-H 誘導体: 1H NMR (400 MHz, CDCl3) δ: 6.98 (m, 2H), 6.62 (dd, 1H), 6.47 (d, 1H), 3.71 (s, 3H), 3.52 (m, 1H), 3.34 (m, 1H), 3.00 (m, 2H), 2.90 (m, 1H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 356.1 (M+1).
ステップ3:(1,2,3,4-テトラヒドロキノリン-3-イル)メタノール。撹拌した1,2,3,4-テトラヒドロキノリン-3-カルボン酸メチルエステル(93 mg, 0.49 mmol)の Et2O溶液(1.5 mL)に、0℃、窒素雰囲気下、LiAlH4(Et2O中濃度 1M)を加えると激しくガスが発生し、白い沈殿が生じた。30分後、15%NaOH(3 mL)を用いて慎重に反応を停止させ、Et2O 3 mL を加えて反応溶液を室温で15分間、急速に撹拌した。層が分離し、水層を Et2O(10 mLで1回)を用いて抽出した。有機層を合わせ、乾燥させ(MgSO4)、濾過し、アルコールを濃縮した(64 mg, 収率80%)。
1H NMR (400 MHz, CDCl3) δ: 6.97 (m, 2H), 6.62 (dd, 1H), 6.47 (d, 1H), 3.66 (m, 1H), 3.58 (m, 1H), 3.40 (m, 1H), 3.08 (m, 1H), 2.82 (m, 1H), 2.53 (m, 1H), 2.18 (m, 1H).
ステップ4:[5-メチル-2-(1,2,3,4-テトラヒドロキノリン-3-イルメトキシ)フェニル]カルバミン酸第3級ブチルエステル。撹拌した2-N-第3級ブトキシカルボニルアミノ-4-メチルフェノール(88 mg, 0.39 mmol)、(1,2,3,4-テトラヒドロキノリン-3-イル)メタノール(64 mg, 0.39 mmol)およびトリフェニルホスフィン(103 mg, 0.39 mmol)の TEF 溶液(850μL)に、0℃、窒素雰囲気下、DIAD(77μL, 0.39 mmol)の THF 溶液(850μL)を加えた。反応溶液を一晩かけて室温まで戻し、濃縮し、CH2Cl2を用いて直接 Biotage 12M カラムに導き、96/4 ヘキサン/EtOAc を用いて溶出させた。生産物は黄色い油(129 mg, 収率89%)として分離された。
1H NMR (400 MHz, CDCl3) δ: 7.92 (br s, 1H), 7.06 (br s, 1H), 6.99 (m, 2H), 6.81 (m, 1H), 6.73 (s, 2H), 6.65 (dd, 1H), 6.51 (d, 1H), 3.96 (m, 2H), 3.37 (ddd, 2H), 2.79 (ddd, 2H), 2.56 (m, 1H), 2.28 (s, 3H), 1.54 (s, 9H).
ステップ5:3-(2-第3級ブトキシカルボニルアミノ-4-メチルフェノキシメチル-3,4-ジヒドロ-2H-キノリン-1-カルボン酸ベンジルエステル。撹拌した[5-メチル-2-(1,2,3,4-テトラヒドロキノリン-3-イルメトキシ)フェニル]カルバミン酸第3級ブチルエステル(129 mg, 0.35 mmol)および2-N-第3級ブトキシアミノ-4-メチルフェノール(129 mg, 0.35 mmol)の CH2Cl2 溶液(1.5 mL)に、0℃、窒素雰囲気下、DIEA (61μL, 0.35 mmol)、次いでベンジルクロロギ酸(50μL, 0.35 mmol)および DMAP (4 mg, 0.35 mmol)を加えた。24時間後、反応溶液を CH2Cl2 30 mL を用いて稀釈し、2N HCl (30 mLで2回)および飽和NaHCO3 (30 mLで2回)を用いて洗浄した。有機層を乾燥させ(MgSO4)、濾過し、生産物と出発物質の混合物として現れる茶色の油に濃縮した。
1H NMR (400 MHz, CDCl3/CD3OD) δ: 8.23 (s, 1H), 8.18 (s, 1H), 7.96 (s, 1H), 7.04 (t, 1H), 6.97 (d, 1H), 6.81 (m, 2H), 6.67 (t, 1H), 6.58 (d, 1H), 4.04 (m, 2H), 3.57 (d, 1H), 3.26 (t, 1H), 2.92 (ddd, 2H), 2.64 (m, 1H), 2.34 (s, 3H), 2.31 (s, 3H).
LRMS (apci, ホ゜シ゛ティフ゛) m/e 404.2 (M+1).
1-[2-(1-エチル-1,2,3,4-テトラヒドロキノリン-3-イルメトキシ)-5-メチルフェニル]-3-(5-メチルピラジン-2-イル)尿素
1H NMR (400 MHz, CDCl3) δ: 7.92 (br s, 1H), 7.08 (dd, 1H), 7.02 (m, 1H), 6.99 (d, 1H), 6.75 (s, 2H), 6.62 (d, 1H), 6.59 (dd, 1H), 3.98 (m, 2H), 3.39 (m, 4H), 3.20 (m, 1H), 2.79 (ddd, 2H), 2.58 (m, 1H), 2.28 (s, 3H), 1.56 (s, 9H), 1.16 (t, 3H).
ステップ3:2-(1-エチル-1,2,3,4-テトラヒドロキノリン-3-イルメトキシ)-5-メチルフェニルアミン。[2-(1-エチル-1,2,3,4-テトラヒドロキノリン-3-イルメトキシ)-5-メチルフェニル]カルバミン酸第3級ブチルエステル(40 mg, 0.1 mmol)の 4N HCl(ジオキサン中濃度)溶液(2 mL)を、乾燥管を取り付け、室温で一晩撹拌した。懸濁液をロータリーエバポレーターによって濃縮し、CH2Cl2 30 mL を用いて稀釈し、10%NaCO3(30 mL)と共に振とうした。有機層を分離し、乾燥させ(MgSO4)、濾過し、以下の反応において精製することなく用いられる茶色の油に濃縮した。
アシルアジドの 0.5 M 溶液(182μL)を、セプタムキャップ付き反応バイアル内で窒素雰囲気下、トルエン(364μL)を用いて稀釈し、撹拌しながら90℃の油浴で加熱した。約20分後、N2ガスの発生が止まり、反応溶液を室温まで冷却し、2-(1-エチル-1,2,3,4-テトラヒドロキノリン-3-イルメトキシ)-5-メチルフェニルアミン(27mg, 0.91 mmol)のトルエン溶液(550μL)で処理した。混合溶液を65℃で2時間撹拌した。反応溶液を一晩かけて室温まで冷却すると沈殿が生じた。沈殿をトルエンを用いて濾取し、目的とする尿素が褐色の固体(7 mg, 収率18%)として得られた。
1H NMR (400 MHz, CDCl3) δ: 11.34 (br s, 1H), 8.25 (s, 1H), 8.21 (s, 1H), 8.11 (br s, 1H), 7.83 (s, 1H), 7.25 (m, 1H), 7.18 (d, 1H), 7.12 (t, 1H), 6.97 (d, 1H), 6.80 (m, 2H), 6.70 (d, 1H), 6.61 (t, 1H), 4.05 (m, 2H), 3.52 (m, 2H), 3.32 (t, 1H), 3.17 (m, 1H), 2.91 (ddd, 2H), 2.69 (m, 1H), 2.36 (s, 3H), 2.27 (s, 3H), 1.04 (t, 3H).
LRMS (apci, ホ゜シ゛ティフ゛) m/e 431.9 (M+1).
1-[5-メチル-2-(1-メチルピペリジン-3-イルメトキシ)フェニル]-3-キノキサリン-2-イル尿素
1H NMR (400 MHz, CDCl3) δ: 9.58 (s, 1H), 8.32 (d, 1H), 8.21 (d, 1H), 7.94 (m, 2H).
ステップ2:1-[5-メチル-2-(1-メチルピペリジン-3-イルメトキシ)フェニル]-3-キノキサリン-2-イル尿素。キノキサリン-2-カルボニルアジド(66 mg, 0.33 mmol)のトルエン溶液(1.7 mL)を、窒素雰囲気下、撹拌しながら90℃の油浴で加熱した。約20分後、反応溶液を65℃に冷却し、固体の5-メチル-2-(1-メチルピペリジン-3-イルメトキシ)フェニルアミン(70 mg, 0.3 mmol)を加えた。反応溶液を65℃で4時間撹拌し、その後、一晩かけて室温まで冷却した。生じた沈殿を濾取し、トルエンを用いて洗浄した(62 mg, 収率51%)。
1H NMR (400 MHz, CDCl3) δ: 11.58 (br s, 1H), 9.27 (br s, 1H), 8.63 (s, 1H), 8.22 (s, 1H), 8.03 (d, 1H), 7.91 (d, 1H), 7.76 (t, 1H), 7.61 (t, 1H), 6.86 (m, 2H), 4.03 (m, 2H), 2.91 (d, 1H), 2.61 (d, 1H), 2.37 (s, 3H), 2.25 (m, 1H), 2.09 (s, 1H), 1.81 (m, 3H), 1.57 (m, 2H), 1.05 (m, 1H).
LRMS (apci, ホ゜シ゛ティフ゛) m/e 405.9 (M+1).
1-[5-メチル-2-(ピリジン-3-イルメトキシ)フェニル]-3-キノキサリン-2-イル尿素
1H NMR (400 MHz, CDCl3) δ: 11.99 (br s, 1H), 9.64 (br s, 1H), 8.76 (s, 1H), 8.61 (s, 1H), 8.48 (d, 1H), 8.24 (s, 1H), 7.98 (d, 1H), 7.79 (d, 1H), 7.55 (t, 1H), 7.42 (t, 1H), 7.17 (d, 1H), 7.12 (m, 1H), 6.93 (m, 2H), 5.26 (s, 2H), 2.41 (s, 3H).
LRMS (apci, ホ゜シ゛ティフ゛) m/e 385.9 (M+1).
1-[2-(4-メチル-2-ニトロフェノキシ)エチル]アジリディン。2-ニトロ-4-メチルフェノール(505 mg, 3.3 mmol, 1.1当量)および2-アジリディン-1-イルエタノール(3.0 mmol, 1当量)の THF溶液(10 mL)を0℃で撹拌した。トリフェニルホスフィン(0.87 g, 3.30 mmol, 1.1当量)およびジイソプロピルアゾカルボキシレート(0.67 g, 3.30 mmol, 1.1当量)を加え、反応溶液を室温に戻した。18時間後、反応溶液を EtOAc 100 mL を用いて稀釈し、水(20 mLで3回)を用いて洗浄した。有機層を 1N HCl(20 mLで3回)を用いて再度洗浄した。3N NaOH を用いて水層を pH 12 以上に塩基性化し、EtOAc(50 mLで3回)を用いて抽出し、粗生産物を得た。最終生産物は、ジクロロメタン中濃度 5-10% MeOH で溶出させるフラッシュカラムクロマトグラフィーによって精製した。
1H NMR (400 MHz, CDCl3) δ: 7.66 (s, 1H), 7.32 (d, J=8.61 Hz, 1H), 7.01 (d, J=8.61 Hz, 1H), 4.26 (t, J=5.09 Hz, 2H), 2.67 (t, J=5.48 Hz, 2H), 2.34 (s, 3H), 1.79 (m, 2H), 1.34 (m, 2H).
ステップ2:ニトロ基還元
2-(2-アジリジン-1-イルエトキシ)-5-メチルフェニルアミン。3-ニトロ-4-アルコキシトルエン(1.0 mmol)の EtOH 溶液(20 mL)を2気圧、300 mg以上の 10% Pd/炭素存在下で30分間水素化させた。ガラスフィルターを通す濾過によって触媒を取り除き、濃縮し、さらに精製することなく直接使用される目的とする生産物が得られた。
1-[2-(2-アジリジン-1-イルエトキシ)-5-メチルフェニル]-3-(5-メチルピラジン-2-イル)尿素。5-メチルピラジン-2-カルボキシアジド(196 mg, 1.2 mmol, 1.2当量)の無水トルエン溶液(20 mL)を90℃に加熱した。20分後、N2 発生が止まり、アニリン(1.0 mmol, 1当量)を 2 mL トルエン溶液として加える前に、反応溶液を60℃に冷却した。60℃で、4時間撹拌した後、反応溶液を EtOAc 50 mL および 飽和 NaHCO3 50 mL の間で分配させた。有機層を食塩水を用いて洗浄し、MgSO4 を用いて乾燥させ、濾過し、濃縮した。残渣をジクロロメタン中濃度 5% MeOH で溶出させるフラッシュカラムクロマトグラフィーによって精製した。
1H NMR (400 MHz, d6-DMSO) δ: 10.80 (s, 1H), 8.64 (s, 1H), 8.53 (s, 1H), 8.15 (s, 1H), 8.07 (s, 1H), 6.82 (m, 2H), 4.20 (m, 2H), 2.70 (m, 2H), 2.5 (s, 3H), 2.32 (s, 3H), 1.89 (s, 2H), 1.30 (m, 2H).
MS (apci, ホ゜シ゛ティフ゛) m/e 328.0 (M+1).
1-[2-(3-ジメチルアミノベンゾイルオキシ)-5-メチルフェニル]-3-(5-メチルピラジン-2-イル)尿素
1-[2-(1-イソプロピルピロリジン-3-イルオキシ)-5-メチルフェニル]-3-(5-メチルピラジン-2-イル)尿素
1H NMR (400 MHz, d6-DMSO) δ: 10.08 (s, 2H), 8.65 (s, 1H), 8.14 (s, 1H), 8.03 (s, 1H), 6.81 (d, J=7.83 Hz, 1H), 6.74 (d, J=8.61 Hz, 1H), 4.85 (s, 1H), 2.91 (m, 1H), 2.75 (m, 2H), 2.48 (m, 1H), 2.40 (s, 3H), 2.36 (m, 1H), 2.27 (m, 1H), 2.21 (s, 3H), 1.85 (m, 1H), 1.01 (m, 6H).
MS (apci, ホ゜シ゛ティフ゛) m/e 369.9 (M+1).
1-[5-メチル-2-(1-メチルピロリジン-3-イルメトキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素
1H NMR (400 MHz, d6-DMSO) δ: 10.13 (s, 2H), 8.67 (s, 1H), 8.15 (s, 1H), 8.06 (s, 1H), 6.81 (d, J=8.61 Hz, 1H), 6.75 (d, J=7.83 Hz, 1H), 4.88 (s, 1H), 2.75 (m, 4H), 2.50 (m, 2H), 2.43 (s, 3H), 2.30 (s, 3H), 2.24 (s, 3H).
MS (apci, ホ゜シ゛ティフ゛) m/e 341.9 (M+1).
1H NMR (400 MHz, d6-DMSO) δ: 10.16 (s, 1H), 10.09 (s, 1H), 8.53 (s, 1H), 8.11 (s, 1H), 7.97 (s, 1H), 6.80 (d, J=7.8 Hz, 1H), 6.69 (d, J=8.6 Hz, 1H), 3.77 (s, 2H), 3.09 (m, 1H), 2.82 (m, 1H), 2.34 (m, 2H), 2.30 (s, 3H), 2.27 (m, 1H), 2.15 (s, 3H), 1.92 (m, 1H), 1.75 (m, 1H), 1.53 (m, 1H), 1.37 (m, 1H), 1.11 (m, 1H).
MS (apci, ホ゜シ゛ティフ゛) m/e 356.0 (M+1).
1-[5-フルオロ-2-(ピリジン-3-イルメトキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素
12時間撹拌した後、反応溶液を酢酸エチル 30 mL を用いて稀釈し、10%炭酸ナトリウム水溶液(30 mLで2回)および食塩水(30 mLで1回)を用いて洗浄し、その後、乾燥させ(MgSO4)、濾過した。濾液を減圧下で濃縮し、目的とする粗生産物を得た。
1H NMR (400 MHz, CDCl3) δ: 11.62 (br s, 1H), 8.80 (s, 1H), 8.75 (d, 1H), 8.43 (br s, 1H), 8.25 (d, 1H), 8.15 (s, 1H), 7.85 (d, 1H), 7.43 (m, 1H), 6.95 (m, 2H), 6.68 (m, 1H), 5.15 (s, 2H), 2.43 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 354.10 (M+1).
1-[5-フルオロ-2-(1-メチルピペリジン-3-イルメトキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素
1H NMR (400 MHz, CDCl3) δ: 8.22 (m, 3H), 7.21 (m, 2H), 6.78 (m, 2H), 3.85 (m, 2H), 3.21 (m, 1H), 2.85 (m, 1H), 2.52 (s, 3H), 2.39 (s, 3H), 1.50-2.30 (m, 8H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 374.21 (M+1).
1-[5-フルオロ-2-(1-メチルピペリジン-4-イルオキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素
1H NMR (400 MHz, CDCl3) δ: 11.49 (br s, 1H), 8.89 (br s, 1H), 8.35 (s, 1H), 8.22 (d, 1H), 8.10 (s, 1H), 6.80 (m, 1H), 6.70 (m, 1H), 4.25 (m, 1H), 2.90 (m, 2H), 2.55 (s, 3H), 2.38 (s, 3H), 2.35 (s, 3H), 1.80-2.30 (m, 6H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 359.91 (M+1).
1-[4-フルオロ-2-(ピリジン-3-イルメトキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素
1H NMR (400 MHz, CDCl3) δ: 11.41 (br s, 1H), 8.85 (s, 1H), 8.75 (d, 1H), 8.40 (t, 1H), 8.18 (s, 1H), 7.88 (s, 1H), 7.80 (d, 1H), 7.43 (t, 1H), 7.00 (s, 1H), 6.80 (m, 2H), 5.12 (s, 2H), 2.43 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 354.21 (M+1).
1-[4-フルオロ-2-(1-メチルピペリジン-3-イルメトキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素
1-[4-フルオロ-2-(1-メチルピペリジン-4-イルオキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素
1-[3,4-ジフルオロ-2-(ピリジン-3-イルメトキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素
1H NMR (400 MHz, CDCl3) δ: 11.49 (br s, 1H), 8.89 (s, 1H), 8.85 (s, 1H), 8.65 (d, 1H), 8.25 (s, 1H), 8.10 (m, 1H), 7.88 (d, 1H), 7.35 (t, 1H), 7.18 (s, 1H), 6.98 (m, 1H), 5.25 (s, 2H), 2.52 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 372.10 (M+1).
1-(5-メチルピラジン-2-イル)-3-[5-メチル-2-(ピリジン-4-イルオキシ)フェニル]尿素
1H NMR (400 MHz, CDCl3) δ: 11.41 (br s, 1H), 8.52 (m, 3H), 8.33 (s, 1H), 8.22 (s, 1H), 7.61 (s, 1H), 6.80-7.00 (m, 4H), 2.49 (s, 3H), 2.45 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 335.91 (M+1).
1-(5-メチルピラジン-2-イル)-3-[5-メチル-2-(ピリジン-3-イルオキシ)フェニル]尿素
1H NMR (400 MHz, CDCl3) δ: 11.49 (br s, 1H), 8.55 (s, 1H), 8.39 (d, 1H), 8.35 (s, 1H), 8.15 (s, 1H), 8.05 (br s, 1H), 7.21 (m, 2H), 6.92 (m, 2H), 2.49 (s, 3H), 2.45 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 335.91 (M+1).
1-(5-メチルピラジン-2-イル)-3-[5-メチル-2-(ピリジン-2-イルオキシ)フェニル]尿素
1H NMR (400 MHz, CDCl3) δ: 8.51 (br s, 1H), 8.42 (br s, 1H), 8.00 (s, 1H), 7.80 (s, 1H), 7.51 (t, 1H), 7.29 (d, 1H), 7.05 (d, 1H), 6.95 (d, 1H), 6.75 (d, 1H), 6.35 (t, 1H), 2.49 (s, 3H), 2.45 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 335.91 (M+1).
置換されたアミノピラジン尿素類:一般的製法
撹拌した 0.3 M アミノピラジン誘導体(1当量)のクロロホルム溶液 1 mL に、室温、窒素雰囲気下、2-メトキシ-5-メチルフェニルイソシアン酸塩(1当量)を加えた。反応溶液を一晩80℃に加熱し、その後、室温まで冷却した。多くの場合、生産物は沈殿し、濾過によって分離した。別の方法として、生産物は溶出液として EtOAc/ヘキサン、または CH2Cl2/MeOH を用いるシリカゲルクロマトグラフィーによって分離することも可能である。
3-(2-メトキシ-5-メチルフェニル)-1-メチル-1-ピラジン-2-イル尿素
1H NMR (400 MHz, CDCl3) δ: 7.97 (d, 1H), 7.85 (s, 1H), 7.73 (d, 1H), 2.96 (s, 3H).
ステップ2:撹拌した 0.3 M 2-メチルアミノピラジン(1当量)のジクロロエタン溶液に、室温、窒素雰囲気下、2-メトキシ-5-メチルフェニルイソシアン酸塩(1当量)を加えた。反応溶液を一晩80℃に加熱し、その後、室温まで冷却した。多くの場合、生産物は沈殿し、濾過によって分離した。別の方法として、生産物は溶出液として EtOAc/ヘキサン、または CH2Cl2/MeOH を用いるシリカゲルクロマトグラフィーによって分離することも可能である。
1H NMR (400 MHz, CDCl3) δ: 8.57 (s, 1H), 8.32 (s, 1H), 8.31 (s, 1H), 8.17 (s, 1H), 6.80 (m, 2H), 3.90 (s, 3H), 3.56 (s, 3H), 2.32 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 273.2 (M+1).
1-(2-メトキシ-5-メチルフェニル)-3-(5-メチルピラジン-2-イル)尿素
1-(5,6-ジメチルピラジン-2-イル)-3-(2-メトキシ-5-メチルフェニル)尿素
1H NMR (400 MHz, CDCl3) δ: 7.76 (s, 1H), 4.25 (br s, 2H), 2.40 (s, 3H), 2.37 (s, 3H).
ステップ2:2-アミノ-5,6-ジメチルピラジンを用いて、化合物310で述べた一般的製法に従って調製した。
1H NMR (400 MHz, CDCl3) δ: 11.43 (br s, 1H), 8.23 (s, 1H), 8.00 (s, 1H), 7.64 (br s, 1H), 6.81 (m, 2H), 3.95 (s, 3H), 2.59 (s, 3H), 2.52 (s, 3H), 2.35 (s, 3H).
LRMS (apci, ホ゜シ゛ティフ゛) m/e 287.1 (M+1).
1-(2-メトキシ-5-メチルフェニル)-3-(5-トリフルオロメチルピラジン-2-イル)尿素
1H NMR (400 MHz, CDCl3) δ: 10.59 (s, 1H), 9.78 (br s, 1H), 9.06 (s, 1H), 8.80 (s, 1H), 8.00 (s, 1H), 6.96 (d, 1H), 6.81 (d, 1H), 3.87 (s, 3H), 2.22 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 327.1 (M+1).
1-(5,6-ジフェニルピラジン-2-イル)-3-(2-メトキシ-5-メチルフェニル)尿素
1H NMR (400 MHz, CDCl3) δ: 8.24 (s, 1H), 7.42-7.31 (m, 4H), 7.39-7.21 (m, 6H).
ステップ2:2-クロロ-5,6-ジフェニルピラジン。ふたをして撹拌した2-ヒドロキシ-5,6-ジフェニルピラジン(430 mg, 1.7 mmol)の POCl3 溶液(5.2 mL)を100度で4時間加熱した。オレンジ色の溶液を室温まで冷却し、CH2Cl2 (100 mL)と氷冷した10% Na2CO3 (100 mL)の混合溶液中で、15分間急速に撹拌した。有機層を分離し、10% Na2CO3 (100 mLで2回)を用いて洗浄した。有機層を分離し、乾燥させ(MgSO4)、濾過し、濃縮し、白い固体(450 mg, 定量的)として存在するクロロピラジンが得られた。
1H NMR (400 MHz, CDCl3) δ: 8.59 (s, 1H), 7.45-7.39 (m, 4H), 7.36-7.24 (m, 6H).
ステップ3:2-アジド-5,6-ジフェニルピラジン。撹拌した2-クロロ-5,6-ジフェニルピラジン(45 mg, 0.17 mmol)の DMF 溶液(500μL)に、室温、窒素雰囲気下、アジ化ナトリウム(11 mg, 0.17 mmol)を加え、反応溶液を100℃に加熱した。一晩撹拌した後、反応溶液を室温まで冷却し、EtOAc (30 mL)を用いて稀釈し、H2O(30 mLで4回)および飽和 NaCl (30 mLで1回)を用いて洗浄した。有機層を分離し、乾燥させ(MgSO4)、濾過し、濃縮し、黄色い固体(45 mg, 定量的)として存在する2-アジドピラジンが得られた。
1H NMR (400 MHz, CDCl3) δ: 9.73 (s, 1H), 7.58-7.42 (m, 6H), 7.36-7.23 (m, 4H).
ステップ4:2-アミノ-5,6-ジフェニルピラジン。室温で撹拌した2-アジド-5,6-ジフェニルピラジン(45 mg, 0.17 mmol)の EtOAc 溶液(50 mL)に、トリエチルアミン(100μL)、次いでパールマン結晶(50 mg)を加えた。懸濁液を水素ガスと共にバキューム/パージサイクルに3回通じ、その後1気圧の水素下に2時間置いた。懸濁液を EtOAc を用いて GF/F 濾紙を通して濾過し、濃縮した。粗生産物は、1/1 EtOAc/ヘキサンを用いる Biotage 12S カラムを通して溶出させ、純粋な生産物が透明な油(25 mg, 収率59%)として得られた。
1H NMR (400 MHz, CDCl3/CD3OD) δ: 8.04 (s, 1H), 7.42-7.20 (m, 10H), 4.62 (br s, 2H).
ステップ5:2-アミノ-5,6-ジフェニルピラジンを用いて、化合物310で述べた一般的製法に従って調製した。
1H NMR (400 MHz, CDCl3/CD3OD) δ: 8.34 (s, 1H), 8.13 (s, 1H), 7.80 (s, 1H), 7.46 (d, 2H), 7.37-7.23 (m, 10H), 6.81 (d, 1H), 6.66 (d, 1H), 3.17 (s, 3H), 2.33 (s, 3H).
1-[3-ベンジル-5-(4-メトキシフェニル)ピラジン-2-イル]-3-(2-メトキシ-5-メチルフェニル)尿素
1-(6-アジドピラジン-2-イル)-3-(2-メトキシ-5-メチルフェニル)尿素
1H NMR (400 MHz, CDCl3) δ: 9.72 (br s, 1H), 8.23 (s, 1H), 7.97 (s, 1H), 7.87 (s, 1H), 7.80 (br s, 1H), 6.88 (d, 1H), 6.80 (d, 1H), 3.84 (s, 3H), 2.36 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 300.0 (M+1).
1-(6-アミノピラジン-2-イル)-3-(2-メトキシ-5-メチルフェニル)尿素
1H NMR (400 MHz, CDCl3) δ: 8.19 (s, 1H), 7.61 (s, 1H), 7.56 (s, 1H), 6.83 (s, 2H), 3.95 (s, 3H), 2.33 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 274.2 (M+1).
1-(6-クロロピラジン-2-イル)-3-(2-メトキシ-5-メチルフェニル)尿素
1H NMR (400 MHz, CDCl3) δ: 8.26 (s, 1H), 8.23 (s, 1H), 8.17 (s, 1H), 8.09 (br s, 1H), 6.84 (d, 1H), 6.81 (d, 1H), 3.96 (s, 3H), 2.35 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 293.0 (M+1).
1-(5-ブロモピラジン-2-イル)-3-(2-メトキシ-5-メチルフェニル)尿素
1H NMR (400 MHz, CDCl3/CD3OD) δ: 8.55 (s, 1H), 8.32 (s, 1H), 8.03 (s, 1H), 6.81 (m, 2H), 3.92 (s, 3H), 2.34 (s, 3H).
1-(3,5-ジブロモピラジン-2-イル)-3-(2-メトキシ-5-メチルフェニル)尿素
1-[5-(1,3-ジオキソ-1,3-ジヒドロイソインドール-2-イルメチル)ピラジン-2-イル]-3-(2-メトキシ-5-メチルフェニル)尿素
1H NMR (400 MHz, CDCl3) δ: 9.22 (s, 1H), 8.29 (s, 1H), 7.37 (br s, 1H), 4.54 (s, 2H), 1.55 (s, 9H).
ステップ2:[5-(1,3-ジオキソ-1,3-ジヒドロイソインドール-2-イルメチル)ピラジン-2-イル]カルバミン酸第3級ブチルエステル。撹拌したフタリミド(971 mg, 6.6 mmol)と K2CO3 粉末(1.37 mg, 9.9 mmol)のアセトニトリル溶液(9.9 mL)に、室温、窒素雰囲気下、固体の臭化ベンジル(954 mg, 3.3 mmol)を加えた。懸濁液を65℃で4時間加熱した。室温まで冷却した後、反応溶液を EtOAc (60 mL) および水(60 mL)の間で分配させた。有機層を分離し、水(50 mLで2回)および飽和 NaCl (50 mLで1回)を用いて洗浄した。有機層を乾燥させ(MgSO4)、濾過し、濃縮した。粗生産物を CH2Cl2 を用いて粉末化し、過剰のフタリミド固体を取り除くために濾過し、濾液を部分的に濃縮し、Biotage 40S カラムに直接導入し、3/7 EtOAc/ヘキサンを用いて溶出させ、目的とするフタリミドが白い固体(495 mg, 収率42%)として得られた。
1H NMR (400 MHz, CDCl3) δ: 9.17 (s, 1H), 8.23 (s, 1H), 7.85 (m, 2H), 7.71 (m, 2H), 7.39 (br s, 1H), 4.97 (s, 2H), 1.52 (s, 9H).
ステップ3:2-(5-アミノピラジン-2-イルメチル)イソインドール-1,3-ジオン。ふたをしたフラスコ内で撹拌したフタリミド(495 mg, 1.4 mmol)の CH2Cl2 溶液(7 mL)に、室温でトリフルオロ酢酸(7 mL)を加えた。一晩撹拌した後、過剰のトリフルオロ酢酸を取り除くために反応溶液を濃縮し、200 mL の 10/1 CH2Cl2/MeOH に溶解させ、直ちに撹拌し、10%Na2CO3 (200 mL)で処理した。有機層を分離し、乾燥させ(MgSO4)、濾過し、濃縮して遊離アミノピラジンが黄色い固体(260 mg, 収率73%)として得られた。
1H NMR (400 MHz, CDCl3) δ: 8.25 (s, 1H), 7.85 (m, 2H), 7.77 (s, 1H), 7.74 (m, 2H), 4.83 (s, 2H).
ステップ4:2-(5-アミノピラジン-2-イルメチル)イソインドール-1,3-ジオンを用いて、化合物310で述べた一般的製法に従って調製した。
1H NMR (400 MHz, CDCl3) δ: 8.38 (s, 1H), 8.29 (s, 1H), 8.03 (s, 1H), 7.86 (m, 2H), 7.76 (m, 2H), 6.81 (m, 2H), 4.98 (s, 2H), 3.91 (s, 3H), 2.31 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 418.1 (M+1).
1-(5-アミノメチルピラジン-2-イル)-3-(2-メトキシ-5-メチルフェニル)尿素
1H NMR (400 MHz, d6-DMSO) δ: 9.54 (s, 1H), 8.80 (s, 1H), 8.46 (s, 1H), 8.02 (s, 1H), 6.93 (d, 1H), 6.79 (d, 1H), 4.51 (d, 2H), 4.39 (br s, 2H), 3.89 (s, 3H), 2.23 (s, 3H).
LRLCMS (esi, ホ゜シ゛ティフ゛) m/e 288.2 (M+1).
1-(2-メトキシ-5-メチルフェニル)-3-(6-メトキシピラジン-2-イル)尿素
1H NMR (400 MHz, CDCl3) δ: 8.15 (s, 1H), 8.05 (br s, 1H), 7.92 (s, 1H), 7.82 (s, 1H), 6.89 (d, 1H), 6.80 (d, 1H), 4.05 (s, 3H), 3.81 (s, 3H), 2.38 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 289.10 (M+1).
1-(6-ベンジルオキシピラジン-2-イル)-3-(2-メトキシ-5-メチルフェニル)尿素
1H NMR (400 MHz, d6-DMSO) δ: 9.99 (s, 1H), 9.18 (s, 1H), 8.62 (s, 1H), 7.99 (s, 1H), 7.95 (s, 1H), 7.52 (d, 2H), 7.41 (m, 3H), 6.92 (d, 1H), 6.80 (d, 1H), 5.39 (s, 2H), 3.80 (s, 3H), 2.21 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 365.10 (M+1).
1-(2-メトキシ-5-メチルフェニル)-3-(5-メトキシピラジン-2-イル)尿素
1H NMR (400 MHz, CDCl3) δ: 8.12 (s, 1H), 7.99 (s, 1H), 7.91 (s, 1H), 6.80 (dd, 2H), 3.95 (s, 3H), 3.89 (s, 3H), 2.38 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 289.10 (M+1).
1-(5-エチニルピラジン-2-イル)-3-(2-メトキシ-5-メチルフェニル)尿素
1H NMR (400 MHz, d6-DMSO) δ: 10.25 (s, 1H), 9.80 (br s, 1H), 8.90 (s, 1H), 8.50 (s, 1H), 8.00 (s, 1H), 6.95 (d, 1H), 6.82 (d, 1H), 4.42 (s, 1H), 3.82 (s, 3H), 2.22 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 283.10 (M+1).
1-(5-エチルピラジン-2-イル)-3-(2-メトキシ-5-メチルフェニル)尿素
1H NMR (400 MHz, CDCl3) δ: 8.65 (s, 1H), 8.38 (s, 1H), 8.18 (s, 1H), 8.08 (s, 1H), 6.80 (dd, 2H), 3.92 (s, 3H), 2.81 (q, 2H), 2.39 (s, 3H), 1.39 (t, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 287.21 (M+1).
1-(5-シアノピラジン-2-イル)-3-(2-メトキシ-5-メチルフェニル)尿素
1H NMR (400 MHz, d6-DMSO) δ: 8.89 (s, 1H), 8.79 (s, 1H), 8.05 (s, 1H), 6.91 (d, 1H), 6.80 (d, 1H), 3.85 (s, 3H), 2.22 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 283.91 (M+1).
1-(5-ベンゾイルピラジン-2-イル)-3-(2-メトキシ-5-メチルフェニル)尿素
1H NMR (400 MHz, CDCl3) δ: 9.41 (s, 1H), 9.01 (s, 1H), 8.45 (s, 1H), 8.18 (s, 1H), 8.08 (d, 2H), 7.61 (t, 1H), 7.52 (t, 2H), 6.90 (d, 1H), 6.82 (d, 1H), 3.92 (s, 3H), 2.39 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 363.21 (M+1).
1-[5-(ヒドロキシフェニルメチル)ピラジン-2-イル]-3-(2-メトキシ-5-メチルフェニル)尿素
1H NMR (400 MHz, CDCl3) δ: 8.48 (br s, 1H), 8.39 (s, 1H), 8.22 (s, 1H), 8.12 (s, 1H), 7.25-7.45 (m, 5H), 6.89 (d, 1H), 6.80 (d, 1H), 5.85 (d, 1H), 3.88 (s, 3H), 2.37 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 365.24 (M+1).
1-(2-メトキシ-5-メチルフェニル)-3-(6-メトキシピラジン-2-イル)尿素
1H NMR (400 MHz, CDCl3) δ: 11.11 (br s, 1H), 8.612 (s, 1H), 8.29 (s, 1H), 8.24 (s, 1H), 8.14 (s, 1H), 8.03 (m, 2H), 7.51 (m, 3H), 6.87 (d, 1H), 6.77 (d, 1H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 355.6 (M+1).
1-(3-ブロモ-5-フェニルピラジン-2-イル)-3-(2-メトキシ-5-メチルフェニル)尿素
1H NMR (400 MHz, CDCl3) δ: 8.36 (s, 1H), 8.09 (s, 1H), 7.63 (d, 2H), 7.59 (m, 3H), 6.85 (dd, 2H), 3.92 (s, 3H), 2.39 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 413.2 (M+1).
1-(2-メトキシ-5-メチルフェニル)-3-(5-フェニルピラジン-2-イル)尿素
1H NMR (400 MHz, CDCl3) δ: 8.36 (s, 1H), 8.22 (s, 1H), 8.18 (s, 1H), 7.63 (m, 2H), 7.59 (m, 3H), 7.28 (br s, 1H), 6.82 (m, 2H), 3.92 (s, 3H), 2.33 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 335.21 (M+1).
1-(2-メトキシ-5-メチルフェニル)-3-キノキサリン-2-イル尿素
1H NMR (400 MHz, d6-DMSO) δ: 11.63 (br s, 1H), 10.59 (br s, 1H), 8.80 (s, 1H), 8.15 (s, 1H), 7.97 (d, 1H), 7.81 (m, 2H), 7.64 (m, 1H), 6.98 (d, 1H), 6.82 (d, 1H), 3.97 (s, 3H), 2.23 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 309.4 (M+1).
1-(3,6-ジメチルピラジン-2-イル)-3-(2-メトキシ-5-メチルフェニル)尿素
1H NMR (400 MHz, CDCl3) δ: 8.22 (br s, 1H), 8.01 (br s, 1H), 6.82 (m, 2H), 3.92 (s, 3H), 2.59 (s, 3H), 2.55 (s, 3H), 2.38 (s, 3H).
LRMS (esi, ホ゜シ゛ティフ゛) m/e 287.20 (M+1).
1H NMR (400 MHz, CDCl3) δ: 7.84 (d, J=8.2 Hz, 1H), 7.10 (s, 1H), 6.94 (d, J=9.1 Hz, 1H), 4.51 (s, 2H), 3.98 (s, 3H), 3.44 (s, 3H).
ステップ2:2-メトキシ-4-メトキシメチルフェニルアミン。250 mL パール器具内の2-メトキシ-4-メトキシメチル-1-ニトロベンゼン(2.1 g, 10.6 mmol)のエタノール溶液(40 mL)を300 mg の10% Pd/C 存在下、2気圧で2.5時間水素化した。グラスファイバー濾紙を通す濾過によって触媒を取り除き、濾液を濃縮し、生産物が淡黄色の油(1.61 g, 収率91%)として得られた。
1H NMR (400 MHz, CDCl3) δ: 6.80 (s, 1H), 6.74 (d, J=7.8 Hz, 1H), 6.67 (d, J=7.8 Hz, 1H), 4.35 (s, 2H), 3.86 (s, 3H), 3.78 (br d, 2H), 3.35 (s, 3H).
MS (esi, ホ゜シ゛ティフ゛) 168.1 (M+1).
ステップ3:1-(2-メトキシ-4-メトキシメチルフェニル)-3-(5-メチルピラジン-2-イル)尿素。
一般的ジフェニルホスホリルアジドカップリング法:5-メチルピラジン-2-カルボン酸(365 mg, 2.64 mmol)の無水トルエン溶液(20 mL)に、ジイソプロピルエチルアミン(483μL, 2.77 mmol)を加え、固体が溶解するまで混合溶液を室温で撹拌した。ジフェニルホスホリルアジドを加え、反応溶液を90℃に加熱した。20分後、N2 の発生がおさまり、カラメル色の反応溶液を、4 mL トルエン溶液として2-メトキシ-4-メトキシメチルアニリンを加える前に、60℃に冷却した。60℃で時間撹拌した後、混合溶液を室温まで冷却し、5% NH4OH 20 mL を用いて稀釈し、EtOAc(50 mLで3回)を用いて抽出した。合わせた抽出液を水 20 mL および食塩水 20 mL を用いて洗浄し、その後、MgSO4 を用いて乾燥させ、濾過し、濃縮した。茶色い残渣を 5% MeOH/CH2Cl2 で溶出させるフラッシュクロマトグラフィーによって精製し、目的とする生産物(219 mg, 収率27%)が得られた。
1H NMR (400 MHz, CDCl3) δ: 11.36 (s, 1H), 9.47 (s, 1H), 8.40 (s, 1H), 8.31 (s, 1H), 8.08 (s, 1H), 6.95 (s, 1H), 6.94 (d, J=7.8 Hz, 1H), 4.45 (s, 2H), 3.97 (s, 3H), 3.39 (s, 3H), 2.52 (s, 3H).
MS (esi, ホ゜シ゛ティフ゛) 303.2 (M+1).
1-(4-ベンジルオキシメチル-2-メトキシフェニル)-3-(5-メチルピラジン-2-イル)尿素
1H NMR (400 MHz, CDCl3) δ: 7.85 (d, J=8.2 Hz, 1H), 7.3-7.4 (m, 5H), 7.26 (s, 1H), 6.97 (d, J=8.2 Hz, 1H), 4.61 (s, 2H), 4.59 (s, 2H), 3.96 (s, 3H).
ステップ2:4-ベンジルオキシメチル-2-メトキシフェニルアミン。4-ニトロ-3-メトキシベンジルベンジルエーテル(2.2 g, 8.1 mmol)と酢酸アンモニウム(2.46 g, 32 mmol, 4当量)のメタノール溶液(30 mL)を0℃で撹拌し、亜鉛粉末(1.3 g, 20 mmol, 2.5当量)を数回に分けて加えた。1時間後、反応溶液を水 40 mL と酢酸エチル 40 mL の間で分配させた。有機層を MgSO4 を用いて乾燥させ、濃縮した。残渣は、さらに精製することなく次のステップに直接用いた。
1H NMR (400 MHz, CDCl3) δ: 7.35 (m, 5H), 6.82 (s, 1H), 6.77 (d, J=6.3 Hz, 1H), 6.67 (d, J=7.8 Hz, 1H), 4.51 (s, 2H), 4.45 (s, 2H), 3.85 (s, 3H), 3.79 (s, 2H).
MS (esi, ホ゜シ゛ティフ゛) 244.2 (M+1).
ステップ3:1-(4-ベンジルオキシメチル-2-メトキシフェニル)-3-(5-メチルピラジン-2-イル)尿素。化合物336で述べた一般的ジフェニルホスホリルアジドカップリング法に従って調製した。
1H NMR (400 MHz, CDCl3) δ: 11.36 (s, 1H), 9.23 (s, 1H), 8.39 (s, 1H), 8.32 (d, J=7.8 Hz, 1H), 8.09 (s, 1H), 7.38 (m, 5H), 6.97 (s, 2H), 4.56 (s, 4H), 3.96 (s, 3H), 2.53 (s, 3H).
MS (apci, ホ゜シ゛ティフ゛) 244.2 (M+1).
1-{4-[(ベンジルメチルアミノ)メチル]-2-メトキシフェニル}-3-(5-メチルピラジン-2-イル)尿素
1H NMR (400 MHz, CDCl3) δ: 7.86 (s, 1H), 7.84 (m, 1H), 7.12 (s, 1H), 7.07 (m, 1H), 4.47 (s, 2H), 4.00 (s, 3H).
ステップ2:N-ベンジル-N-(3-メトキシ-4-ニトロベンジル)アミン。臭化3-メトキシ-4-ニトロベンジル(1.97 g, 8.0 mmol)の TMF溶液(20 mL)に、トリエチルアミン(2.4 g, 24 mmol, 3当量)、次いでベンジルアミン(2.5 g, 24 mmol, 3当量)を加えた。混合溶液を室温で2時間撹拌した、その後、酢酸エチル 50 mL と食塩水 50 mL の間で分配させた。有機層を MgSO4 を用いて乾燥させ、濃縮した。残渣は、ジクロロメタン中 1-4% MeOH で溶出させるフラッシュクロマトグラフィーによって精製し、ベンジルアミンが黄色い油(1.6 g, 収率73%)として得られた。
1H NMR (400 MHz, CDCl3) δ: 7.84 (d, J=8.61 Hz, 1H), 7.34 (m, 5H), 7.16 (s, 1H), 6.99 (d, J=8.61 Hz, 1H), 3.97 (s, 3H), 3.86 (s, 2H), 3.81 (s, 2H).
ステップ3:ベンジル(3-メトキシ-4-ニトロベンジル)カルバミン酸第3級ブチルエステル。N-ベンジル-N-(3-メトキシ-4-ニトロベンジル)アミン(0.92 g, 3.4 mmol, 1当量)のジクロロメタン溶液(2 mL)を入れた 150 mL 丸底フラスコに、無水第3級ブトキシカルボニル(0.74, 3.4 mmol, 1当量)を加え、室温で18時間撹拌した。その後、反応溶液を水 40 mL と酢酸エチル 40 mL の間で分配させた。有機層を MgSO4 を用いて乾燥させ、濃縮した。さらなる精製は不要であった。
1H NMR (400 MHz, CDCl3) δ: 7.81 (d, J=8.61 Hz, 1H), 7.2-7.3 (m, 6H), 6.93 (m, 1H), 6.82 (s, 1H), 4.39 (m, 4H), 3.88 (s, 3H), 1.53 (s, 9H).
ステップ4〜6:1-{4-[ベンジルメチルアミノ)メチル]-2-メトキシフェニル}-3-(5-メチルピラジン-2-イル)尿素。ベンジル-(3-メトキシ-4-ニトロベンジル)カルバミン酸第3級ブチルエステルを、化合物336で詳細に述べた一般的水素化法に従って、対応するアニリンに還元した。粗アニリンを以下のカップリングステップに用いた:5-メチルピラジン-2-カルボン酸(34.5 mg, 0.25 mmol)および添加したトリエチルアミン(28 mg, 0.275 mmol)の無水トルエン溶液(5 mL)を、固体が溶解するまで室温で撹拌した。ジフェニルホスホリルアジド(62 mg, 0.225 mmol)を加え、反応溶液を90℃で20分間撹拌した。反応ポットを60℃の油浴に移動させ、トルエン溶液 2 mL としてアニリン(0.25 mmol)を加えた。60℃で4.5時間撹拌した後、混合溶液を室温まで冷却し、EtOAc を用いて稀釈し、飽和 NaHCO3 および食塩水を用いて洗浄した。有機層を MgSO4 を用いて乾燥させ、濾過し、濃縮した。生じた残渣は、CH2Cl2中 5% MeOH で溶出させる分取 TLC によって精製し、目的とする尿素が得られた。第3級ブトキシカルボニル基は、第3級ブトキシカルボニル保護アミンのCH2Cl2 溶液 15 mL を TFA 3 mL で処理し、室温で3時間撹拌することによって取り除いた。反応溶液を EtOAc 50 mL を用いて稀釈し、飽和 NaHCO3 20 mL、次いで食塩水 20 mL を用いて洗浄した。その後、有機層を MgSO4 を用いて乾燥させ、濾過し、濃縮し、遊離アミンが得られた。
1H NMR (400 MHz, d6-DMSO) δ: 11.35 (s, 1H), 9.68 (s, 1H), 8.41 (s, 1H), 8.28 (d, J=8.21 Hz, 1H), 8.06 (s, 1H), 7.36 (s, 6H), 6.96 (s, 1H), 6.94 (d, J=8.21 Hz, 1H), 3.95 (s, 3H), 3.84 (s, 2H), 3.81 (s, 2H), 2.52 (s, 3H), 2.13 (s, 1H).
MS (apci, ホ゜シ゛ティフ゛) 377.9 (M+1).
1-(2-メトキシ-4-メチルアミノメチルフェニル)-3-(5-メチルピラジン-2-イル)尿素
1H NMR (400 MHz, CDCl3) δ: 7.84 (d, J=8.61 Hz, 1H), 6.98 (s, 1H), 6.87 (d, J=8.61 Hz, 1H), 4.46 (s, 2H), 3.95 (s, 7H), 2.85 (s, 3H), 1.53 (s, 9H).
ステップ3:(4-アミノ-3-メトキシベンジル)メチルカルバミン酸第3級ブチルエステル。250 mL パール器具内の(3-メトキシ-4-ニトロベンジル)メチルカルバミン酸第3級ブチルエステル(0.98 g, 3.5 mmol)のエタノール溶液(40 mL)を、300 mg以上の10% Pd/C 存在下、2気圧で15分間水素化した。グラスファイバー濾紙を通す濾過によって触媒を取り除き、濾液を濃縮し、粗生産物が淡黄色の油として得られた。
1H NMR (400 MHz, CDCl3) δ: 6.69 (m, 3H), 3.95 (s, 2H), 3.84 (s, 3H), 2.80 (m, 2H), 2.75 (s, 3H), 1.51 (s, 9H).
ステップ4+5:1-(2-メチル-4-メチルアミノメチルフェニル)-3-(5-メチルピラジン-2-イル)尿素。(4-アミノ-3-メトキシベンジル)メチルカルバミン酸第3級ブチルエステルの溶液を、化合物336で詳細に述べた一般的ジフェニルホスホリルアジドカップリング法に従って対応する尿素に変換した。第3級ブトキシカルボニル基は、化合物338で述べたようにして取り除いた。
1H NMR (400 MHz, d6-DMSO) δ: 9.91 (s, 2H), 8.78 (s, 1H), 8.21 (s, 1H), 8.07 (d, J=8.61 Hz, 1H), 7.01 (s, 1H), 6.85 (d, J=8.61 Hz, 1H), 3.89 (s, 3H), 3.59 (s, 1H), 2.42 (s, 3H), 2.26 (s, 3H).
MS (apci, ホ゜シ゛ティフ゛) 301.8 (M+1).
1-{4-[(ベンジルメチルアミノ)メチル]-2-メトキシフェニル}-3-(5-メチルピラジン-2-イル)尿素
1H NMR (400 MHz, CDCl3) δ: 7.83 (d, J=8.6 Hz, 1H), 7.35 (s, 4H), 7.26 (s, 1H), 7.17 (s, 1H), 7.01 (d, J=7.04 Hz, 1H), 3.97 (s, 3H), 3.55 (s, 4H), 2.22 (s, 3H).
ステップ2:1-[4-(ベンジルメチルアミノ)メチル]-2-メトキシフェニルアミン。
ホウ素化ニッケル還元の一般的方法:撹拌した塩化ニッケル六水和物(820 mg, 3.45 mmol)の 12 mL EtOH および 3 mL THF 溶液に、0℃で NaBH4 (130 mg, 3.45 mmol)を加えた。生じた黒い懸濁液を0℃で撹拌し、N-ベンジル-(3-メトキシ-4-ニトロベンジル)メチルアミンを 5 mL THF 溶液として加えた。数分後、260 mg の NaBH4 を10分以上かけ、数回に分けて加え、その後、反応溶液を室温に戻した。2時間後、TLC は新しく、より極性の生産物への変換の完了を示した。この時点で、5% NH4OH 1.5 mL を加え、反応溶液を、黒い固体が顆粒状の一貫性を達成するまで、10分間撹拌した。反応溶液を濾過し、グラスファイバー濾紙を通して濾過し、 THF を用いて洗浄した。無色透明の濾液を約1/4の体積にまで濃縮し、水 30 mL を用いて稀釈し、EtOAc(30 mLで3回)を用いて抽出した。あわせた抽出液は食塩水を用いて洗浄し、MgSO4 を用いて乾燥させ、シリカの短プラグを通して濾過し、減圧下で濃縮し、目的とする生産物が純白でない固体(575 mg, 収率65%)として得られた。
Mp = 142-143℃.
1H NMR (400 MHz, CDCl3) δ: 11.33 (s, 1H), 9.51 (s, 1H), 8.41 (s, 1H), 8.27 (d, J=8.61 Hz, 1H), 8.08 (s, 1H), 7.2-7.4 (m, 5H), 6.96 (d, J=7.83 Hz, 1H), 3.97 (s, 3H), 3.53 (s, 4H), 2.53 (s, 3H), 2.22 (s, 3H).
13C NMR (400 MHz, CDCl3) δ: 153.70, 149.03, 147.48, 147.4, 145.99, 138.73, 137.38, 134.81, 129.19, 128.42, 127.16, 121.89, 119.81, 111.05, 104.49, 94.98, 87.22, 61.81, 56.37, 42.5.
MS (apci, ホ゜シ゛ティフ゛) 392.0 (M+1).
1-(4-ジメチルアミノメチル-2-メトキシフェニル)-3-(5-メチルピラジン-2-イル)尿素
1H NMR (400 MHz, CDCl3) δ: 7.86 (d, J=7.8 Hz, 1H), 7.3 (s, 1H), 6.98 (d, J=8.6 Hz, 1H), 4.01 (s, 3H), 3.50 (s, 2H), 2.30 (s, 6H).
ステップ2:4-ジメチルアミノメチル-2-メトキシフェニルアミン。化合物340でのべたホウ素化ニッケル法に従って、(3-メトキシ-4-ニトロベンジル)ジメチルアミンを対応するアニリンに還元し、確認することなく次のステップに用いた。
1H NMR (400 MHz, d6-DMSO) δ: 11.21 (s, 1H), 8.95 (s, 1H), 8.39 (s, 1H), 8.21 (d, J=7.83 Hz, 1H), 8.04 (s, 1H), 7.01 (s, 1H), 6.89 (d, J=7.83 Hz, 1H), 3.98 (s, 3H), 3.92 (s, 2H), 2.26 (s, 3H), 2.24 (s, 6H).
MS (apci, ホ゜シ゛ティフ゛) 316.0 (M+1).
1-(4-アミノメチル-2-メトキシフェニル)-3-(5-メチルピラジン-2-イル)尿素
1H NMR (400 MHz, d6-DMSO) δ: 7.79 (m, 5H), 7.19 (s, 1H), 7.08 (d, J=8.80 Hz, 1H), 4.91 (s, 2H), 3.87 (s, 3H).
ステップ2:2-(4-アミノ-3-メトキシベンジル)イソインドール-1,3-ジオン。500 mL パール容器内で、部分的に溶解させた2-(3-メトキシ-4-ニトロベンジル)イソインドール-1,3-ジオン(1.50 g, 4.80 mmol)の 100 mL EtOH および 30 mL THF 溶液を、250 mg以上の10% Pd/C 存在下、2.5気圧で1時間水素化した。グラスファイバー濾紙を通す濾過によって触媒を取り除き、淡黄色透明の濾液を減圧下で濃縮した。生産物は、ジエチルエーテル 30 mL を用いて洗浄し、吸引濾過によって収集し、アニリン(1.28 g, 収率95%)が細かい淡緑色針として得られた。
1H NMR (400 MHz, CDCl3) δ: 7.82 (m, 2H), 7.81 (m, 2H), 6.93 (s, 1H), 6.9 (d, J=7.8 Hz, 1H), 6.63 (d, J=7.8 Hz, 1H), 4.74 (s, 2H), 3.84 (s, 3H).
ステップ3:アシルアジドカップリングの一般的方法
1-[4-(1,3-ジオキソ-1,3-ジヒドロイソインドール-2-イルメチル)-2-メトキシフェニル]-3-(5-メチルピラジン-2-イル)尿素。50 mL 丸底フラスコ内で、5-メチルピラジン-2-カルボニルアジド(510 mg, 3.15 mmol)のトルエン溶液(15 mL)を、窒素雰囲気下で撹拌した。反応フラスコを90℃の油浴で加熱し、内部温度が90℃に達すると、N2 発生が明らかになり、溶液が黒ずんできた。20分後、泡立ちがおさまり、溶液は、カラメル色に黒ずんだ。反応溶液を65℃の水浴に移し、トルエン(5 mL)中に懸濁させた2-(4-アミノ-3-メトキシベンジル)イソインドール-1,3-ジオン(884 mg, 3.15 mmol)を加えた。反応溶液を65℃で6時間撹拌し、その後、室温まで冷却した。室温まで冷却した後、溶液から沈殿した生産物は、吸引濾過によって収集した。
Mp=168-169℃. 1H NMR (400 MHz, d6-DMSO) δ: 9.88 (br s, 2H), 8.78 (s, 1H), 8.21 (s, 1H), 8.05 (d, J=8.2 Hz, 1H), 7.05 (s, 1H), 6.85 (d, J=8.1 Hz, 1H), 3.89 (s, 3H), 3.68 (s, 2H), 2.42 (s, 3H), 1.80 (br s, 2H, NH2).
MS (apci, ホ゜シ゛ティフ゛) M-17(-NH3)=270.1. apci, ネカ゛ティフ゛ M-1=285.8
化合物342の誘導体
1-(2-メトキシ-4-{[(チオフェン-2-イルメチル)アミノ]メチル}フェニル)-3-(5-メチルピラジン-2-イル)尿素
1H NMR (400 MHz, d6-DMSO) δ: 10.01 (s, 2H), 8.79 (s, 1H), 8.23 (s, 1H), 8.17 (d, J=8.61 Hz, 1H), 7.59 (d, J=6.26 Hz, 1H), 7.33 (s, 1H), 7.15 (m, 2H), 7.05 (s, 1H), 6.97 (d, J=8.61 Hz, 1H), 4.02 (s, 2H), 3.91 (s, 3H), 3.88 (s, 1H), 3.78 (s, 1H), 2.43 (s, 3H).
MS (apci, ホ゜シ゛ティフ゛) 分子イオン検出せず.
1-(2-メトキシ-4-{[(チオフェン-3-イルメチル)アミノ]メチル}フェニル)-3-(5-メチルピラジン-2-イル)尿素
1H NMR (400 MHz, d6-DMSO) δ: 9.92 (s, 2H), 8.78 (s, 1H), 8.21 (s, 1H), 8.07 (d, J=7.81 Hz, 1H), 7.47 (s, 1H), 7.3 (s, 1H), 7.11 (d, J=4.88 Hz, 1H), 7.04 (s, 1H), 6.87 (d, J=7.81 Hz, 1H), 3.90 (s, 3H), 3.67 (s, 2H), 3.65 (s, 2H), 2.42 (s, 3H).
MS (apci, ネカ゛ティフ゛) 382.0 (M-1).
1-(4-{[(フラン-2-イルメチル)アミノ]メチル}-2-メトキシフェニル)-3-(5-メチルピラジン-2-イル)尿素
1-(4-{[(フラン-3-イルメチル)アミノ]メチル}-2-メトキシフェニル)-3-(5-メチルピラジン-2-イル)尿素
1-{2-メトキシ-4-[(2-メトキシベンジルアミノ)メチル]フェニル}-3-(5-メチルピラジン-2-イル)尿素
1-{2-メトキシ-4-[(3-メトキシベンジルアミノ)メチル]フェニル}-3-(5-メチルピラジン-2-イル)尿素
1-{2-メトキシ-4-[(4-メトキシベンジルアミノ)メチル]フェニル}-3-(5-メチルピラジン-2-イル)尿素
1H NMR (400 MHz, d6-DMSO) δ: 9.91 (s, 2H), 8.78 (s, 1H), 8.21 (s, 1H), 8.07 (d, J=7.81 Hz, 1H), 7.25 (d, J=8.78 Hz, 2H), 7.03 (s, 1H), 6.88 (m, 2H), 3.89 (s, 3H), 3.73 (s, 3H), 3.62 (s, 2H), 3.60 (s, 2H), 2.42 (s, 3H).
MS (apci, ホ゜シ゛ティフ゛) 407.9 (M+1).
アシル誘導体
N-{3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンジル}アセタミド
1H NMR (400 MHz, d6-DMSO) δ: 9.92 (s, 2H), 8.75 (s, 1H), 8.28 (t, J=5.87 Hz, 1H), 8.19 (s, 1H), 8.07 (d, J=8.61 Hz, 1H), 6.92 (s, 1H), 6.78 (d, J=8.61, 1H), 4.19 (s, 1H), 4.18 (s, 1H), 3.87 (s, 3H), 2.40 (s, 3H), 1.85 (s, 3H).
MS (esi, ホ゜シ゛ティフ゛) 330.2 (M+1).
2-メトキシ-N-{3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンジル}アセタミド
1H NMR (400 MHz, d6-DMSO) δ: 9.51 (s, 2H), 8.34 (s, 1H), 7.89 (t, J=6.26 Hz, 1H), 7.78 (s, 1H), 7.65 (d, J=7.83 Hz, 1H), 6.54 (s, 1H), 6.38 (d, J=7.83 Hz, 1H), 4.20 (s, 1H), 4.19 (s, 1H), 3.82 (s, 3H), 3.79 (s, 2H), 3.29 (s, 3H), 2.35 (s, 3H).
MS (apci, ホ゜シ゛ティフ゛) 359.9 (M+1).
2-ジメチルアミノ-N-{3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンジル}アセタミド
N-{3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンジル}-2-ピリジン-2-イルアセタミド
1H NMR (400 MHz, d6-DMSO) δ: 9.94 (s, 2H), 8.77 (s, 1H), 8.63 (t, J=5.87 Hz, 1H), 8.49 (s, 1H), 8.44 (d, J=6.26 Hz, 1H), 8.22 (s, 1H), 8.08 (d, J=7.83 Hz, 1H), 7.70 (d, J=10.17 Hz, 1H), 7.35 (q, J=5.74 Hz, 1H), 6.87 (s, 1H), 6.79 (d, J=9.39 Hz, 1H), 4.25 (s, 1H), 4.24 (s, 1H), 3.82 (s, 3H), 3.53 (s, 2H), 2.42 (s, 3H).
MS (apci, ホ゜シ゛ティフ゛) 407.1 (M+1).
N-{3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンジル}-2-(4-メトキシフェニル)アセタミド
1H NMR (400 MHz, d6-DMSO) δ: 9.94 (s, 2H), 8.77 (s, 1H), 8.54 (t, J=4.7 Hz, 1H), 8.21 (s, 1H), 8.08 (d, J=7.83 Hz, 2H), 7.89 (m, 1H), 7.22 (t, J=7.83 Hz, 1H), 6.89 (s, 3H), 4.25 (s, 1H), 4.23 (s, 1H), 3.80 (s, 3H), 3.73 (s, 2H), 3.45 (s, 2H), 2.42 (s, 3H).
MS (apci, ホ゜シ゛ティフ゛) 436.2 (M+1).
N-{3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンジル}ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 9.95 (s, 2H), 9.02 (t, J=5.48 Hz, 1H), 8.77 (s, 1H), 8.22 (s, 1H), 8.10 (d, J=8.61 Hz, 1H), 7.90 (d, J=7.83 Hz, 2H), 7.48 (m, 3H), 7.04 (s, 1H), 6.88 (d, J=10.17 Hz, 1H), 4.46 (s, 1H), 4.44 (s, 1H), 3.89 (s, 3H), 2.42 (s, 3H).
MS (apci, ホ゜シ゛ティフ゛) 391.9 (M+1).
ピリジン-2-カルボン酸3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンジルアミド
N-{3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンジル}ニコチンアミド
1H NMR (400 MHz, d6-DMSO) δ: 10.0 (s, 2H), 9.26 (t, J=5.87 Hz, 1H), 9.11 (s, 1H), 8.82 (s, 1H), 8.77 (d, J=4.7 Hz, 1H), 8.27 (s, 2H), 8.16 (d, J=7.83 Hz, 1H), 7.58 (m, 1H), 7.09 (s, 1H), 6.95 (d, J=8.61 Hz, 1H), 4.53 (s, 1H), 4.51 (s, 1H), 3.95 (s, 3H), 2.47 (s, 3H).
MS (apci, ホ゜シ゛ティフ゛) 397.9 (M-1).
N-{3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンジル}イソニコチンアミド
1H NMR (400 MHz, d6-DMSO) δ: 9.92 (s, 2H), 9.27 (t, J=5.87 Hz, 1H), 8.74 (s, 1H), 8.71 (d, J=6.3 Hz, 1H), 8.18 (s, 1H), 8.08 (d, J=8.6 Hz, 1H), 7.77 (d, J=6.3 Hz, 2H), 7.00 (s, 1H), 6.86 (d, J=8.6 Hz, 1H), 4.44 (s, 1H), 4.43 (s, 1H), 3.86 (s, 3H), 2.39 (s, 3H).
MS (apci, ホ゜シ゛ティフ゛) 分子イオンを検出せず.
チオフェン-2-カルボン酸3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンジルアミド
1H NMR (400 MHz, d6-DMSO) δ: 9.96 (s, 2H), 9.03 (t, J=6.26 Hz, 1H), 8.78 (s, 1H), 8.22 (s, 1H), 8.11 (d, J=7.83 Hz, 1H), 7.82 (d, J=4.7 Hz, 1H), 7.77 (d, J=3.91 Hz, 1H), 7.16 (d, J=3.91 Hz, 1H), 7.03 (s, 1H), 6.88 (d, J=10.17 Hz, 1H), 4.43 (s, 1H), 4.42 (s, 1H), 3.89 (s, 3H), 2.42 (s, 3H).
MS (apci, ホ゜シ゛ティフ゛) 397.9 (M-1).
3-ジメチルアミノ-N-{3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンジル}ベンズアミド
1H NMR (400 MHz, d6-DMSO) δ: 9.94 (s, 2H), 8.90 (t, J=5.87 Hz, 1H), 8.77 (s, 1H), 8.21 (s, 1H), 8.09 (d, J=8.61 Hz, 1H), 7.26 (t, J=7.83 Hz, 1H), 7.20 (s, 1H), 7.02 (s, 1H), 6.87 (d, J=8.61 Hz, 2H), 4.44 (s, 1H), 4.42 (s, 1H), 3.88 (s, 3H), 2.93 (s, 6H), 2.42 (s, 3H).
MS (apci, ホ゜シ゛ティフ゛) 434.9 (M+1).
1-フェニル-4-トリフルオロメチル-1H-ピラゾール-3-カルボン酸3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンジルアミド
1H NMR (400 MHz, d6-DMSO) δ: 9.96 (s, 2H), 9.09 (t, J=6.26 Hz, 1H), 8.78 (s, 1H), 8.22 (s, 1H), 8.19 (s, 1H), 8.12 (d, J=7.83 Hz, 1H), 7.59 (m, 6H), 7.02 (s, 1H), 6.89 (d, J=8.61 Hz, 1H), 4.43 (s, 1H), 4.42 (s, 1H), 3.90 (s, 3H), 2.42 (s, 3H).
MS (tic, ホ゜シ゛ティフ゛) 526.2 (M+1).
スルフォニル誘導体
チオフェン-2-スルホン酸3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンジルアミド
1H NMR (400 MHz, d6-DMSO) δ: 9.96 (s, 2H), 8.77 (s, 1H), 8.33 (t, J=7.04 Hz, 1H), 8.31 (s, 1H), 8.07 (d, J=7.83 Hz, 1H), 7.93 (d, J=4.7 Hz, 1H), 7.59 (s, 1H), 7.18 (t, J=3.91 Hz, 1H), 6.90 (s, 1H), 6.80 (t, J=7.04 Hz, 1H), 4.05 (s, 1H), 4.03 (s, 1H), 3.85 (s, 3H), 2.51 (s, 3H).
MS (apci, ホ゜シ゛ティフ゛) 433.9 (M+1).
N-{3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンジル}ベンゼンスルホンアミド
1H NMR (400 MHz, d6-DMSO) δ: 9.95 (s, 2H), 8.77 (s, 1H), 8.21 (s, 1H), 8.13 (t, J=6.26 Hz, 1H), 8.05 (d, J=8.61 Hz, 1H), 7.81 (d, J=7.04 Hz, 1H), 7.58 (m, 3H), 6.85 (s, 1H), 6.77 (d, J=8.61 Hz, 1H), 3.96 (s, 1H), 3.95 (s, 1H), 3.81 (s, 3H), 2.42 (s, 3H).
MS (apci, ホ゜シ゛ティフ゛) 428.2 (M+1).
N-{3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンジル}-2-トリフルオロメトキシベンゼンスルホンアミド
1H NMR (400 MHz, d6-DMSO) δ: 9.94 (s, 2H), 8.77 (s, 1H), 8.38 (s, 1H), 8.21 (s, 1H), 8.02 (d, J=8.61 Hz, 1H), 7.89 (m, 1H), 7.72 (t, J=7.83 Hz, 1H), 7.51 (d, J=7.83 Hz, 2H), 6.88 (s, 1H), 6.75 (d, J=10.17 Hz, 1H), 4.11 (s, 2H), 3.82 (s, 3H), 2.42 (s, 3H).
MS (apci, ホ゜シ゛ティフ゛) 512.0 (M+1).
3-メトキシ-N-{3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンジル}ベンゼンスルホンアミド
1H NMR (400 MHz, d6-DMSO) δ: 9.92 (s, 2H), 8.73 (s, 1H), 8.17 (s, 1H), 8.08 (s, 1H), 8.01 (d, J=7.83 Hz, 1H), 7.45 (t, J=7.83, 1H), 7.34 (d, J=7.83 Hz, 1H), 7.24 (s, 1H), 7.14 (m, 1H), 6.81 (s, 1H), 6.74 (d, J=7.83 Hz, 1H), 3.93 (s, 2H), 3.77 (s, 3H), 3.76 (s, 3H), 2.38 (s, 3H).
MS (apci, ホ゜シ゛ティフ゛) 458.0 (M+1).
4-メトキシ-N-{3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンジル}ベンゼンスルホンアミド
1H NMR (400 MHz, d6-DMSO) δ: 9.93 (s, 2H), 8.74 (s, 1H), 8.18 (s, 1H), 8.02 (d, J=8.61 Hz, 1H), 7.92 (s, 1H), 7.69 (d, J=8.61, 2H), 7.05 (d, J=9.39 Hz, 2H), 6.81 (s, 1H), 6.74 (d, J=7.83 Hz, 1H), 3.88 (s, 2H), 3.79 (s, 6H), 2.39 (s, 3H).
MS (apci, ホ゜シ゛ティフ゛) 458.2 (M+1).
ピリジン-2-スルホン酸3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンジルアミド
1H NMR (400 MHz, d6-DMSO) δ: 9.91 (s, 2H), 8.74 (s, 1H), 8.68 (d, J=4.7 Hz, 1H), 8.17 (s, 1H), 7.99 (m, 2H), 7.86 (d, J=7.83, 1H), 7.6 (s, 1H), 6.86 (s, 1H), 6.74 (d, J=8.61 Hz, 1H), 4.10 (s, 2H), 3.80 (s, 3H), 3.32 (s, 1H), 2.38 (s, 3H).
MS (apci, ホ゜シ゛ティフ゛) 428.9 (M+1).
本発明の好ましい化合物として、さらに
N-(2-ジメチルアミノ-1-フェニルエチル)-3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンズアミン;
N-(1-アザビシクロ[2.2.2]オクト-3-イル)-3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンズアミド;
N-(3-R-1-シクロヘキシルメチルピロリジン-3-イル)-3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンズアミド;
1-[2-(2-ジメチルアミノエトキシ)-5-メチルフェニル]-3-ピラジン-2-イル尿素;
1-[2-(3-ジメチルアミノプロポキシ)-5-メチルフェニル]-3-(5-メチルピラジン-2-イル尿素;
1-(5-メチルピラジン-2-イル)-3-[5-メチル-2-(ピリジン-3-イルメトキシ)フェニル]尿素;
1-[2-(2-ジメチルアミノ-1-ジメチルアミノメチルエトキシ)-5-メチルフェニル]-3-(5-メチルピラジン-2-イル尿素;
1-[5-メチル-2-(2-S-メチルピロリジン-2-イルメトキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素;
1-{5-メチル-2-[2-(1-メチルピロリジン-2-イル)エトキシ]フェニル}-3-(5-メチルピラジン-2-イル)尿素;
1-[5-メチル-2-(1-メチルピペリジン-4-イルオキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素;
1-[5-メチル-2-(3-(S)-1-メチルピペリジン-3-イルメトキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素;
1-[5-メチル-2-(3-(R)-1-メチルピペリジン-3-イルメトキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素;
1-[5-メチル-2-(1-メチルピペリジン-3-イルメトキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素;
1-[5-メチル-2-(1-メチルピペリジン-3-イルオキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素;
1-[5-メチル-2-(1-メチルピペリジン-3-イルメトキシ)フェニル]-3-キノキサリン-2-イル)尿素;
1-[5-メチル-2-(ピペリジン-3-イルメトキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素;
1-[5-フルオロ-2-(1-メチルピペリジン-3-イルメトキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素;
1-[4-フルオロ-2-(1-メチルピペリジン-4-イルオキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素;
1-(2-メトキシ-4-メチルアミノメチルフェニル)-3-(5-メチルピラジン-2-イル)尿素;
1-(4-{[(フラン-3-イルメチル)アミノ]メチル}-2-メトキシフェニル)-3-(5-メチルピラジン-2-イル)尿素;
1-{2-メトキシ-4-[(4-メトキシベンジルアミノ)メチル]フェニル}-3-(5-メチルピラジン-2-イル)尿素、が含まれる。
ヒト Chk1 cDNAは、1998年9月4日に出願された国際出願 PCT/US98/18558 で述べたように同定し、クローン化した。FLAG(登録商標)タグを全長 Chk1 のアミノ末端のフレームに挿入した。5'プライマーは、 EcoRI 部位およびコザック配列を含み、また、M2抗体(Sigma, Saint Louis, IL)を用いるアフィニティー精製のためのFLAG(登録商標)タグをコード化する。3'プライマーは、SalI部位を含む。PCR 増幅されたフラグメントを、EcoRI-SalIフラグメント(Invitrogen, Carlsbad, CA)として pCI-Neo 内へクローン化し、EcoRI-NotIフラグメントとして pFastBacI(Gibco-BRL, Bethesda, MD)内へサブクローン化した。組み換えバキュロウイルスは、Gibco-BRL Bac-Bac マニュアルで説明されているようにして調製し、FLAG(登録商標)タグ化 Chk1 タンパク質を発現させるため、CCM3 培地(HyClone Laboratories, Logan, UT)で増殖する Sf-9 細胞を感染させるのに用いた。
FLAG(登録商標)タグ化 Chk1 は、バキュロウイルスに感染した Sf-9 細胞の冷凍ペレットから精製した。冷凍細胞パレットを、100 mM トリスHCl pH 7.5、200 mM NaCl、50 mM B-グリセロリン酸塩、25 mM NaF、4 mM MgCl2、50 mM EGTA、0.2% TWEEN(登録商標)-20、2mM バナジン酸塩、2 mM DTT、およびプロテアーゼ阻害剤の混合物(コンプリート・ミニ, Boehringer Mannheim 2000年カタログ #1836170)を含む2倍濃度溶解バッファの当量と混合した。その後、細胞をダウンス(dounce)ホモジナイザーの緩い乳棒を用いて20回ホモジナイズし、48,400 G で1時間遠心分離した。M2 アフィニティーをカラム容積の10倍量の 50 mM グリシン pH 3.5、次いで 20 mM トリス pH 7.5、150 mM NaClを用いて交互に3回予備洗浄し、最後にトリス NaCl を用いて洗浄した。次に、カラムをカラム容積の25倍量の 20 mM トリス pH 7.5、150 mM NaCl、0.1%TWEEN(登録商標)-20、1 mM EGTA、および1倍濃度コンプリート・ミニ プトテアーゼ錠を用いて予備洗浄した。透明化された溶解物をバッチ内、4℃で4時間かけて M2 アフィニティー樹脂に結合させた。その後、樹脂と溶解物の混合物をカラムへと注ぎ、カラム内の通過を通じて収集した。樹脂は、カラム容積の10倍量の 20 mM トリス pH 7.5、150 mM NaCl、および 3 mM N-オクチルグルコシドを用いて洗浄した。 FLAG(登録商標)タグ化 Chk1 は、その後、カラム容積の6倍量の冷却した、0.5 mg/mL FLAG(登録商標)ペプチド(Sigma, 2000年カタログ #F-3290)を含む 20 mM トリス pH 7.5、150 mM NaCl、および 3 mM N-オクチルグルコシドを用いてカラムから溶出させた。FLAG(登録商標)タグ化 Chk1 の存在を分析するために、3つの分画を集めた。
本発明の Chk1 阻害剤について、1以上の他のプロテインキナーゼ、例えば、DNA-PK、Cdc2、カゼインキナーゼI (CHI)、Chk2、p38 MAP キナーゼ、プロテインキナーゼA (PKA)、およびカルシウム-カルモデュリンプロテインキナーゼII (CaM KII)に対する選択性を試験した。Chk2 以外のこれらキナーゼ類のアッセイ手段は、2000年9月1日に出願した米国仮特許出願 60/229,899、および1994年1月21日に出願した米国特許出願 08/184,605 の中で述べられており、双方とも参照されることにより、ここに組み込まれる。Chk2 に対する化合物の活性は、以下のようにしてアッセイした:精製した His-タグ化 Chk2 128 ng を 4 mM ATP、1 mCi [32P]-gATP、20 mM ヘペス pH 7.5、5 mM MgCl2、および 0.25% NP40 存在下、100 mM までの Chk1 阻害剤と共に、室温で20分間インキュベートした。最終濃度 150 mM リン酸の添加によって反応を停止させ、反応溶液の 5/8 をリン酸セルロースディスクへ移した。リン酸セルロースディスクは、150 mM リン酸を用いて5回洗浄し、風乾させた。シンチレーション液を加え、ディスクを Wallac ベータカウンターを用いて計測した。 p38 MAP キナーゼ、PKA、CaM KII、および Cdc2 は、New England Biolabs から購入し、4〜50μM ATP を用い、100μM の高濃度まで Chk1 阻害剤濃度を試験し、製造者の指示に従ってアッセイを行った。試験した全ての阻害剤は、他の酵素よりも Chk1 に対して5倍以上の特異性を示した。
Chk1 は電離放射線およびある種の化学的DNA傷害剤に反応して活性化される。DNA損傷が起こると、Chk1 は活性化され、細胞周期を停止する。哺乳類の細胞では、Chk1 によって引き起こされる最も特徴的な細胞周期の停止は、G2 停止である。DNA損傷による Chk1 の活性化は、通常は細胞が有糸分裂に進行するとサイクリン B/cdc2 を脱リン酸化する二重特異性ホスファターゼである Cdc25C のリン酸化および不活性化を引き起こす(Funari et al., Science, Sep. 5, 1997, 277(5331)1495-1497; Sanchez et al., Science, 1997; 277:1497-1501; Matsuoka et al.; Blasina et al., Curr. Biol., Jan. 14, 1999; 9(1):1-10)。この Cdc2 活性の負の調節は、DNA損傷または非複製DNAの存在下で、細胞が有糸分裂に進行するのを防止するために、細胞周期の停止を引き起こす。
Chk1 の阻害がDNA傷害剤の死滅効果を増強するという仮説を試験するため、選択的 Chk1 阻害剤と、照射または化学的DNA傷害剤の存在下でインキュベートした。1000〜2000/ウェルの濃度で96ウェルマイクロタイトレーションプレートにプレートした細胞を、10% FBS、100 U/mL ペニシリンおよび 100μg/mL ストレプトマイシンを含む RMPI 1640 培地中、37℃・5%CO2加湿インキュベータ内で18時間成長させた。試験した細胞には Hela、ACHN、786-0、HCT116、SW620、HT29、Colo205、SK-MEL-5、SK-MEL-28、A549、H322、OVCAR-3、SK-OV-3、MDA-MB-231、MCF-7、PC-3、HL-60、K562、および MOLT4 が含まれた。全ての細胞系列の名称は、ヒト細胞系列を、以下のように意味する:
マウスにおける 5-FU による腫瘍死滅を増強する Chk1 阻害剤の効果を試験するため、大腸腫瘍細胞系列を用いる異種移植腫瘍モデルを確立した。 Colo205 および HT29 細胞(ヒト大腸ガン)は、6〜8週齢雌胸腺 Balb/c (nu/nu) マウスにおいて異種移植腫瘍を増殖するのに用いた。マウスは、病原菌のいない層流キャビネットで、無菌のえさと水を与えて自由に飼育した。細胞系列は、10% FBS、100 U/mL ペニシリン、100μg/mL ストレプトマイシン、および 1.5 mM L-グルタミンを添加した RPMI 1640 培地で、5%CO2加湿環境において集落を形成するまで増殖させた。単一細胞懸濁液を CMF-PBS で調製し、細胞濃度を 1×108 細胞/mL に調整した。マウスは、右脇腹または右足に全部で 1×107 細胞(100μL)を移植した。
腫瘍重量 (mg) = 腫瘍長 (mm) × 腫瘍面積 (mm)2 / 3.3
を用いて経験的に概算した。処置は、50 mg/kg、100 mg/kg、または 150 mg/kg の 5-FU を 100μL 腹腔内投与することからなった。腫瘍サイズは、実験期間中毎日観察した。
Claims (9)
- 下記式:
[式中、
Y'は、Oであり;
W'は、C1-6アルキル、アリール、N(R7)2、OR7、N3、CN、C(O)R7、C1-3アルキレンアリール、C1-3アルキレンN(R12)2、
およびハロからなる群より選択される1〜3個の置換基によって任意に置換される
であり;
Z'は、
であり:
ここでQ'は、OR7 であり;
J'は、CR8であり;
K'は、CR9であり;
L'は、CR10であり;
M'は、CR11であり:
ここでR7は、独立して水素、C1-6アルキル、C2-6アルケニル、シクロアルキル、アリール、ヘテロアリール、SO2R12、1以上のハロ、ヒドロキシ、アリール、ヘテロアリール、ヘテロシクロアルキル、N(R12)2およびSO2R12によって置換されたC1-6アルキル、C1-3アルキレンアリール、C1-3アルキレンヘテロアリール、C1-3アルキレンC3-8ヘテロシクロアルキル、C1-3アルキレンSO2アリール、任意に置換されたC1-3アルキレンN(R12)2、OCF3、C1-3アルキレンN(R12)3 +、C3-8ヘテロシクロアルキル、およびCH(C1-3アルキレンN(R12)2)2からなる群より独立して選択され、または2個のR7基は任意に置換された3〜6員脂肪族環を形成するために共に取り込まれ;
R8、R9およびR10は、水素、ハロ、任意に置換されたC1-6アルキル、C2-6アルケニル、OCF3、NO2、CN、NC、N(R7)2、OR7、CO2R7、C(O)N(R7)2、C(O)R7、N(R13)C(O)R7、N(R13)C(O)OR7、N(R7)C(O)OR7、N(R7)C(O)C1-3アルキレンC(O)R7、N(R7)C(O)C1-3アルキレンC(O)OR7、N(R7)C(O)C1-3アルキレンOR7、N(R7)C(O)C1-3アルキレンNHC(O)OR7、N(R7)C(O)C1-3アルキレンSO2NR7、CF3、C1-3アルキレンN(R12)SO2アリール、C1-3アルキレンN(R12)SO2ヘテロアリール、C1-3アルキレンOC1-3アルキレンアリール、C1-3アルキレンN(R12)C1-3アルキレンアリール、C1-3アルキレンN(R12)C1-3アルキレンヘテロアリール、C1-3アルキレンN(R12)C(O)R7、C1-3アルキレンN(R12)C(O)C1-3アルキレンOR2、C1-3アルキレンN(R12)C(O)アリール、C1-3アルキレンN(R12)C(O)C1-3アルキレンN(R12)2、C1-3アルキレンN(R12)C(O)ヘテロアリール、C1-3アルキレンOR7、およびSR7からなる群よりそれぞれ独立して選択され、R7は、上記に定義される;
R11は、水素、任意に置換されたC1-6アルキル、およびハロからなる群より選択され;
R12は、水素、C1-6アルキル、シクロアルキル、アリール、ヘテロアリール、C1-3アルキレンアリール、およびSO2C1-6アルキルからなる群より選択され、または2個のR12基は任意に置換された3〜6員環を形成するために共に取り込まれ;
R13は、水素、C1-6アルキル、C2-6アルケニル、C2-6アルキニル、およびアリールからなる群より選択され;
但し、Q'がOCH3であるとき、R8、R9およびR10の少なくとも1個は水素、CH3、OCH3、およびハロと異なる]
を有する化合物またはその薬学的に許容しうる塩。 - Q'がOCH3である、請求項1記載の化合物。
- R13が水素である、請求項1記載の化合物。
- R 8 が水素、C1-6アルキルまたはハロであり;
R9およびR10の1つが水素であり、もう1つがCO2R7、C(O)N(R7)2、C(O)R7、N(R13)COR7、N(R13)C(O)OR7、N(R7)C(O)OR7、N(R7)C(O)C1-3アルキレンC(O)R7、N(R7)C(O)C1-3アルキレンC(O)OR7、N(R7)C(O)C1-3アルキレンOR7、N(R7)C(O)C1-3アルキレンNHC(O)OR7、N(R7)C(O)C1-3アルキレンSO2NR7、C1-3アルキレンOR7、CF3、C1-3アルキレンN(R12)SO2アリール、C1-3アルキレンN(R12)SO2ヘテロアリール、C1-3アルキレンOC1-3アルキレンアリール、C1-3アルキレンN(R12)C1-3アルキレンアリール、C1-3アルキレンN(R12)C1-3アルキレンヘテロアリール、C1-3アルキレンN(R12)C(O)R7、C1-3アルキレンN(R12)C(O)C1-3アルキレンOR2、C1-3アルキレンN(R12)C(O)アリール、C1-3アルキレンN(R12)C(O)C1-3アルキレンN(R12)2、C1-3アルキレンN(R12)C(O)ヘテロアリール、およびSR7からなる群より選択される置換基である、
請求項1記載の化合物。 - N-(2-ジメチルアミノ-1-フェニルエチル)-3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンザミン;
N-(1-アザ-ビシクロ[2.2.2]オクト-3-イル)-3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンズアミド;
N-(3-R-1-シクロヘキシルメチル-ピロリジン-3-イル)-3-メトキシ-4-[3-(5-メチルピラジン-2-イル)ウレイド]ベンズアミド;
1-[2-(2-ジメチルアミノエトキシ)-5-メチルフェニル]-3-ピラジン-2-イル尿素;
1-[2-(3-ジメチルアミノプロポキシ)-5-メチルフェニル]-3-(5-メチルピラジン-2-イル)尿素;
1-(5-メチルピラジン-2-イル)-3-[5-メチル-2-(ピリジン-3-イルメトキシ)フェニル]尿素;
1-[2-(2-ジメチルアミノ-1-ジメチルアミノメチルエトキシ)-5-メチルフェニル]-3-(5-メチルピラジン-2-イル)尿素;
1-[5-メチル-2-(2-(S)-1-メチルピロリジン-2-イルメトキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素;
1-[5-メチル-2-[2-(1-メチルピロリジン-2-イル)エトキシ]フェニル]-3-(5-メチルピラジン-2-イル)尿素;
1-[5-メチル-2-(1-メチルピペリジン-4-イルオキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素;
1-[5-メチル-2-(3-(S)-1-メチルピペリジン-3-イルメトキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素;
1-[5-メチル-2-(3-(R)-1-メチルピペリジン-3-イルメトキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素;
1-[5-メチル-2-(1-メチルピペリジン-2-イルメトキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素;
1-[5-メチル-2-(1-メチルピペリジン-3-イルオキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素;
1-[5-メチル-2-(ピペリジン-3-イルメトキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素;
1-[5-フルオロ-2-(1-メチルピペリジン-3-イルメトキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素;
1-[5-フルオロ-2-(1-メチルピペリジン-4-イルオキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素;
1-[4フルオロ-2-(1-メチルピペリジン-4-イルオキシ)フェニル]-3-(5-メチルピラジン-2-イル)尿素;
1-(2-メトキシ-4-メチルアミノメチルフェニル)-3-(5-メチルピラジン-2-イル)尿素;
1-(4-[[(フラン-3-イルメチル)アミノ]メチル]-2-メトキシフェニル)-3-(5-メチルピラジン-2-イル)尿素;および
1-[2-メトキシ-4-[(4-メトキシベンジルアミノ)メチル]フェニル]-3-(5-メチルピラジン-2-イル)尿素からなる群より選択される化合物。 - 下記式:
[式中、
Y'は、Oであり;
W'は、C1-6アルキル、アリール、N(R7)2、OR7、N3、CN、C(O)R7、C1-3アルキレンアリール、C1-3アルキレンN(R12)2、
およびハロからなる群より選択される1〜4個の置換基によって任意に置換される
であり;
Z'は、
からなる群より選択される:
ここでQ'は、OR7であり;
J'は、CR8 であり;
K'は、CR9 であり;
L'は、CR10 であり;
M'は、CR11 であり;
ここでR7は、C1-3アルキレンC3-8ヘテロシクロアルキルであり;
R8、R9およびR10は、水素、ハロ、任意に置換されたC1-6アルキル、C2-6アルケニル、OCF3、NO2、CN、NC、N(R7)2、OR7、CO2R7、C(O)N(R7)2、C(O)R7、N(R13)C(O)R7、N(R13)C(O)OR7、N(R7)C(O)OR7、N(R7)C(O)C1-3アルキレンC(O)R7、N(R7)C(O)C1-3アルキレンC(O)OR7、N(R7)C(O)C1-3アルキレンOR7、N(R7)C(O)C1-3アルキレンNHC(O)OR7、N(R7)C(O)C1-3アルキレンSO2NR7、CF3、C1-3アルキレンN(R12)SO2アリール、C1-3アルキレンN(R12)SO2ヘテロアリール、C1-3アルキレンOC1-3アルキレンアリール、C1-3アルキレンN(R12)C1-3アルキレンアリール、C1-3アルキレンN(R12)C1-3アルキレンヘテロアリール、C1-3アルキレンN(R12)C(O)R7、C1-3アルキレンN(R12)C(O)C1-3アルキレンOR2、C1-3アルキレンN(R12)C(O)アリール、C1-3アルキレンN(R12)C(O)C1-3アルキレンN(R12)2、C1-3アルキレンN(R12)C(O)ヘテロアリール、C1-3アルキレンOR7、およびSR7からなる群よりそれぞれ独立して選択され、R7は、上記に定義される;
R11は、水素、任意に置換されたC1-6アルキル、およびハロからなる群より選択され;
R12は、水素、C1-6アルキル、シクロアルキル、アリール、ヘテロアリール、C1-3アルキレンアリール、およびSO2C1-6アルキルからなる群より選択され、または2個のR12基は任意に置換された3〜6員環を形成するために共に取り込まれ;
R13は、水素である]
を有する化合物またはその薬学的に許容しうる塩。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US27312401P | 2001-03-02 | 2001-03-02 | |
| PCT/US2002/006452 WO2002070494A1 (en) | 2001-03-02 | 2002-03-01 | Aryl and heteroaryl urea chk1 inhibitors for use as radiosensitizers and chamosensitizers |
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| JP4222833B2 true JP4222833B2 (ja) | 2009-02-12 |
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