DE4003854A1 - New vitamin=D derivs. - are cell differentiators and proliferation inhibitors useful for treating psoriasis and malignant tumours - Google Patents
New vitamin=D derivs. - are cell differentiators and proliferation inhibitors useful for treating psoriasis and malignant tumoursInfo
- Publication number
- DE4003854A1 DE4003854A1 DE4003854A DE4003854A DE4003854A1 DE 4003854 A1 DE4003854 A1 DE 4003854A1 DE 4003854 A DE4003854 A DE 4003854A DE 4003854 A DE4003854 A DE 4003854A DE 4003854 A1 DE4003854 A1 DE 4003854A1
- Authority
- DE
- Germany
- Prior art keywords
- hydroxy
- secochola
- vitamin
- diol
- formula
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 201000004681 Psoriasis Diseases 0.000 title abstract description 3
- 201000011510 cancer Diseases 0.000 title abstract description 3
- 229940088594 vitamin Drugs 0.000 title description 3
- 229930003231 vitamin Natural products 0.000 title description 3
- 235000013343 vitamin Nutrition 0.000 title description 3
- 239000011782 vitamin Substances 0.000 title description 3
- 230000035755 proliferation Effects 0.000 title description 2
- 239000003112 inhibitor Substances 0.000 title 1
- 150000003722 vitamin derivatives Chemical class 0.000 title 1
- 150000003710 vitamin D derivatives Chemical class 0.000 claims abstract description 18
- 125000004423 acyloxy group Chemical group 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 8
- 125000000623 heterocyclic group Chemical group 0.000 claims abstract description 3
- -1 (R) -hydroxy-3-isopropoxypropyl Chemical group 0.000 claims description 34
- 150000001875 compounds Chemical class 0.000 claims description 26
- 125000004432 carbon atom Chemical group C* 0.000 claims description 18
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 15
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 13
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 11
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 5
- 125000006239 protecting group Chemical group 0.000 claims description 5
- 229920006395 saturated elastomer Polymers 0.000 claims description 5
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims description 4
- 239000003814 drug Substances 0.000 claims description 4
- 125000002252 acyl group Chemical group 0.000 claims description 3
- 239000000825 pharmaceutical preparation Substances 0.000 claims description 3
- 229940079593 drug Drugs 0.000 claims description 2
- 238000005984 hydrogenation reaction Methods 0.000 claims description 2
- 125000004356 hydroxy functional group Chemical group O* 0.000 claims description 2
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 125000001424 substituent group Chemical group 0.000 claims description 2
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims description 2
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 claims 2
- 150000002440 hydroxy compounds Chemical class 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 11
- QYSXJUFSXHHAJI-XFEUOLMDSA-N Vitamin D3 Natural products C1(/[C@@H]2CC[C@@H]([C@]2(CCC1)C)[C@H](C)CCCC(C)C)=C/C=C1\C[C@@H](O)CCC1=C QYSXJUFSXHHAJI-XFEUOLMDSA-N 0.000 abstract description 5
- 229910019142 PO4 Inorganic materials 0.000 abstract description 4
- 229930003316 Vitamin D Natural products 0.000 abstract description 4
- 230000004060 metabolic process Effects 0.000 abstract description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract description 4
- 239000010452 phosphate Substances 0.000 abstract description 4
- 235000019166 vitamin D Nutrition 0.000 abstract description 4
- 239000011710 vitamin D Substances 0.000 abstract description 4
- 229940046008 vitamin d Drugs 0.000 abstract description 4
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract description 3
- 125000000217 alkyl group Chemical group 0.000 abstract description 2
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- 125000003118 aryl group Chemical group 0.000 abstract 1
- 230000000668 effect on calcium Effects 0.000 abstract 1
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- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 30
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 27
- 239000000243 solution Substances 0.000 description 27
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 21
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 20
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 18
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- 239000012230 colorless oil Substances 0.000 description 8
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 description 8
- 239000011612 calcitriol Substances 0.000 description 7
- 210000004027 cell Anatomy 0.000 description 7
- 238000004587 chromatography analysis Methods 0.000 description 7
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
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- FPGGTKZVZWFYPV-UHFFFAOYSA-M tetrabutylammonium fluoride Chemical compound [F-].CCCC[N+](CCCC)(CCCC)CCCC FPGGTKZVZWFYPV-UHFFFAOYSA-M 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
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- 239000012043 crude product Substances 0.000 description 5
- 239000011541 reaction mixture Substances 0.000 description 5
- LUFPSOYGOSKNGD-UHFFFAOYSA-N 4-methyl-1-(triphenyl-$l^{5}-phosphanylidene)pentan-2-one Chemical compound C=1C=CC=CC=1P(C=1C=CC=CC=1)(=CC(=O)CC(C)C)C1=CC=CC=C1 LUFPSOYGOSKNGD-UHFFFAOYSA-N 0.000 description 4
- SOPHBOLQZLBLMJ-UHFFFAOYSA-N 4-propan-2-yloxy-1-(triphenyl-$l^{5}-phosphanylidene)butan-2-one Chemical compound C=1C=CC=CC=1P(C=1C=CC=CC=1)(=CC(=O)CCOC(C)C)C1=CC=CC=C1 SOPHBOLQZLBLMJ-UHFFFAOYSA-N 0.000 description 4
- FFWSICBKRCICMR-UHFFFAOYSA-N 5-methyl-2-hexanone Chemical compound CC(C)CCC(C)=O FFWSICBKRCICMR-UHFFFAOYSA-N 0.000 description 4
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 4
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 4
- 239000007832 Na2SO4 Substances 0.000 description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- GKIRPKYJQBWNGO-OCEACIFDSA-N clomifene Chemical compound C1=CC(OCCN(CC)CC)=CC=C1C(\C=1C=CC=CC=1)=C(\Cl)C1=CC=CC=C1 GKIRPKYJQBWNGO-OCEACIFDSA-N 0.000 description 4
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- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 3
- 108091003079 Bovine Serum Albumin Proteins 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
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- 210000000988 bone and bone Anatomy 0.000 description 3
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- LOKCTEFSRHRXRJ-UHFFFAOYSA-I dipotassium trisodium dihydrogen phosphate hydrogen phosphate dichloride Chemical compound P(=O)(O)(O)[O-].[K+].P(=O)(O)([O-])[O-].[Na+].[Na+].[Cl-].[K+].[Cl-].[Na+] LOKCTEFSRHRXRJ-UHFFFAOYSA-I 0.000 description 3
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- GLNADSQYFUSGOU-GPTZEZBUSA-J Trypan blue Chemical compound [Na+].[Na+].[Na+].[Na+].C1=C(S([O-])(=O)=O)C=C2C=C(S([O-])(=O)=O)C(/N=N/C3=CC=C(C=C3C)C=3C=C(C(=CC=3)\N=N\C=3C(=CC4=CC(=CC(N)=C4C=3O)S([O-])(=O)=O)S([O-])(=O)=O)C)=C(O)C2=C1N GLNADSQYFUSGOU-GPTZEZBUSA-J 0.000 description 1
- MECHNRXZTMCUDQ-UHFFFAOYSA-N Vitamin D2 Natural products C1CCC2(C)C(C(C)C=CC(C)C(C)C)CCC2C1=CC=C1CC(O)CCC1=C MECHNRXZTMCUDQ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000001028 anti-proliverative effect Effects 0.000 description 1
- 229940121375 antifungal agent Drugs 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- XTKDAFGWCDAMPY-UHFFFAOYSA-N azaperone Chemical compound C1=CC(F)=CC=C1C(=O)CCCN1CCN(C=2N=CC=CC=2)CC1 XTKDAFGWCDAMPY-UHFFFAOYSA-N 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 102000023732 binding proteins Human genes 0.000 description 1
- 108091008324 binding proteins Proteins 0.000 description 1
- SIPUZPBQZHNSDW-UHFFFAOYSA-N bis(2-methylpropyl)aluminum Chemical compound CC(C)C[Al]CC(C)C SIPUZPBQZHNSDW-UHFFFAOYSA-N 0.000 description 1
- 230000031709 bromination Effects 0.000 description 1
- 238000005893 bromination reaction Methods 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 230000004663 cell proliferation Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000013330 chicken meat Nutrition 0.000 description 1
- 150000001805 chlorine compounds Chemical group 0.000 description 1
- 239000002812 cholic acid derivative Substances 0.000 description 1
- 238000011097 chromatography purification Methods 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical compound [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 108010007093 dispase Proteins 0.000 description 1
- 239000003937 drug carrier Substances 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 210000001339 epidermal cell Anatomy 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 238000011067 equilibration Methods 0.000 description 1
- 229960002061 ergocalciferol Drugs 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 125000004494 ethyl ester group Chemical group 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- 230000033444 hydroxylation Effects 0.000 description 1
- 238000005805 hydroxylation reaction Methods 0.000 description 1
- 208000030915 hypercalcemia disease Diseases 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 230000000968 intestinal effect Effects 0.000 description 1
- 210000000936 intestine Anatomy 0.000 description 1
- 238000006317 isomerization reaction Methods 0.000 description 1
- 210000002510 keratinocyte Anatomy 0.000 description 1
- 125000000468 ketone group Chemical group 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- ACKFDYCQCBEDNU-UHFFFAOYSA-J lead(2+);tetraacetate Chemical compound [Pb+2].CC([O-])=O.CC([O-])=O.CC([O-])=O.CC([O-])=O ACKFDYCQCBEDNU-UHFFFAOYSA-J 0.000 description 1
- HTBVGZAVHBZXMS-UHFFFAOYSA-N lithium;tris[(2-methylpropan-2-yl)oxy]alumane Chemical compound [Li].[Al+3].CC(C)(C)[O-].CC(C)(C)[O-].CC(C)(C)[O-] HTBVGZAVHBZXMS-UHFFFAOYSA-N 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 239000006166 lysate Substances 0.000 description 1
- 239000002207 metabolite Substances 0.000 description 1
- 229940057952 methanol Drugs 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- SYSQUGFVNFXIIT-UHFFFAOYSA-N n-[4-(1,3-benzoxazol-2-yl)phenyl]-4-nitrobenzenesulfonamide Chemical class C1=CC([N+](=O)[O-])=CC=C1S(=O)(=O)NC1=CC=C(C=2OC3=CC=CC=C3N=2)C=C1 SYSQUGFVNFXIIT-UHFFFAOYSA-N 0.000 description 1
- 229920002113 octoxynol Polymers 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 229940049954 penicillin Drugs 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- VBQCHPIMZGQLAZ-UHFFFAOYSA-N phosphorane Chemical class [PH5] VBQCHPIMZGQLAZ-UHFFFAOYSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000007699 photoisomerization reaction Methods 0.000 description 1
- 238000005375 photometry Methods 0.000 description 1
- 230000036470 plasma concentration Effects 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 230000027425 release of sequestered calcium ion into cytosol Effects 0.000 description 1
- 229960000342 retinol acetate Drugs 0.000 description 1
- 235000019173 retinyl acetate Nutrition 0.000 description 1
- 239000011770 retinyl acetate Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 125000004469 siloxy group Chemical group [SiH3]O* 0.000 description 1
- 210000003491 skin Anatomy 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000012312 sodium hydride Substances 0.000 description 1
- 229910000104 sodium hydride Inorganic materials 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000003270 steroid hormone Substances 0.000 description 1
- 229960005322 streptomycin Drugs 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 150000003609 titanium compounds Chemical class 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- KPZSTOVTJYRDIO-UHFFFAOYSA-K trichlorocerium;heptahydrate Chemical compound O.O.O.O.O.O.O.Cl[Ce](Cl)Cl KPZSTOVTJYRDIO-UHFFFAOYSA-K 0.000 description 1
- MBYLVOKEDDQJDY-UHFFFAOYSA-N tris(2-aminoethyl)amine Chemical compound NCCN(CCN)CCN MBYLVOKEDDQJDY-UHFFFAOYSA-N 0.000 description 1
- 235000001892 vitamin D2 Nutrition 0.000 description 1
- 239000011653 vitamin D2 Substances 0.000 description 1
- MECHNRXZTMCUDQ-RKHKHRCZSA-N vitamin D2 Chemical compound C1(/[C@@H]2CC[C@@H]([C@]2(CCC1)C)[C@H](C)/C=C/[C@H](C)C(C)C)=C\C=C1\C[C@@H](O)CCC1=C MECHNRXZTMCUDQ-RKHKHRCZSA-N 0.000 description 1
- QYSXJUFSXHHAJI-YRZJJWOYSA-N vitamin D3 Chemical compound C1(/[C@@H]2CC[C@@H]([C@]2(CCC1)C)[C@H](C)CCCC(C)C)=C\C=C1\C[C@@H](O)CCC1=C QYSXJUFSXHHAJI-YRZJJWOYSA-N 0.000 description 1
- 235000005282 vitamin D3 Nutrition 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C401/00—Irradiation products of cholesterol or its derivatives; Vitamin D derivatives, 9,10-seco cyclopenta[a]phenanthrene or analogues obtained by chemical preparation without irradiation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft seitenketten-homologe Vitamin D-Derivate der Formel IThe present invention relates to side chain homologous vitamin D derivatives of Formula I.
worinwherein
R¹ ein Wasserstoffatom, eine Hydroxy- oder eine Acyloxygruppe mit 1 bis 9
Kohlenstoffatomen,
R² ein Wasserstoffatom oder eine Acylgruppe mit 1 bis 9 Kohlenstoffatomen,
A entweder eine direkte Bindung zwischen dem Kohlenstoffatom 20 und dem
Kohlenstoffatom 22 oder eine Methylenbrücke (-CH₂-) zwischen diesen beiden
Kohlenstoffatomen,
B und D entweder jeweils ein Wasserstoffatom oder gemeinsam eine zweite Bindung
(E-konfigurierte Doppelbindung),
R³ oder R⁴ eine Hydroxy- oder Acyloxygruppe mit 1 bis 9 Kohlenstoffatomen, und
der jeweils andere Substituent ein Wasserstoffatom oder R³ und R⁴ gemeinsam
ein Sauerstoffatom,
X entweder einen Alkylenrest -(CH₂)n- oder einen Alkylenoxyrest -(CH₂)nO- mit
n=1 bis 3 sowie
R⁵ und R⁶ unabhängig voneinander jeweils einen linearen oder verzweigten Alkyl
rest mit bis zu 4 Kohlenstoffatomen, eine Trifluormethylgruppe oder gemein
sam einen mit dem tertiären Kohlenstoffatom gebildeten gesättigten, ungesät
tigten oder aromatischen carbocyclischen oder heterocyclischen 5- oder
6gliedrigen RingR¹ is a hydrogen atom, a hydroxy or an acyloxy group with 1 to 9 carbon atoms,
R² is a hydrogen atom or an acyl group with 1 to 9 carbon atoms,
A either a direct bond between the carbon atom 20 and the carbon atom 22 or a methylene bridge (-CH₂-) between these two carbon atoms,
B and D either each represent a hydrogen atom or together a second bond (E-configured double bond),
R³ or R⁴ is a hydroxy or acyloxy group with 1 to 9 carbon atoms, and the other substituent is a hydrogen atom or R³ and R⁴ together are an oxygen atom,
X is either an alkylene radical - (CH₂) n - or an alkyleneoxy radical - (CH₂) n O- with n = 1 to 3 and
R⁵ and R⁶ independently of one another each have a linear or branched alkyl radical having up to 4 carbon atoms, a trifluoromethyl group or together a saturated, unsaturated or aromatic carbocyclic or heterocyclic 5- or 6-membered ring formed with the tertiary carbon atom
bedeuten, sowie ein Verfahren zu deren Herstellung, pharmazeutische Präparate, die diese Verbindungen enthalten sowie deren Verwendung zur Herstellung von Arzneimitteln.mean, as well as a process for their preparation, pharmaceutical preparations, which contain these compounds and their use in the preparation of Medicines.
Die für die Reste R¹, R² und innerhalb der Reste R³ oder R⁴ möglichen Acyloxy- bzw. Acylgruppen sind insbesondere von gesättigten Carbonsäuren oder auch der Benzoesäure abgeleitet.The acyloxy possible for the radicals R¹, R² and within the radicals R³ or R⁴ or acyl groups are especially of saturated carboxylic acids or Derived from benzoic acid.
Bilden R⁵ und R⁶ gemeinsam mit dem tertiären Kohlenstoffatom einen gesättigten carbocyclischen Ring, so ist insbesondere an den Cyclohexylring gedacht. Als Alkylgruppen für R⁵ und R⁶ kommen insbesondere solche mit 1 bis 5 Kohlenstoff atomen in Betracht.R⁵ and R⁶ form a saturated together with the tertiary carbon atom carbocyclic ring, in particular the cyclohexyl ring is thought of. As Alkyl groups for R⁵ and R⁶ come in particular those with 1 to 5 carbon atoms into consideration.
Bevorzugt gemäß vorliegender Erfindung sind seitenketten-homologe Vitamin-D- Derivate der allgemeinen Formel I, in welchenSide chain homologous vitamin D are preferred according to the present invention. Derivatives of the general formula I, in which
R¹, R³ und R⁴ für eine Hydroxygruppe oder
R⁵ und R⁶ für eine Methylgruppe oder
R² für ein Wasserstoffatom
steht/stehen und n 1 oder 2 ist.R¹, R³ and R⁴ for a hydroxy group or
R⁵ and R⁶ for a methyl group or
R² for a hydrogen atom
stands / stand and n is 1 or 2.
Zwischen den Kohlenstoffatomen 22 und 23 (wenn A eine direkte Bindung bedeutet) oder zwischen den Kohlenstoffatomen 23 und 24 (wenn A eine Methylengruppe be deutet) befindet sich vorzugsweise eine Doppelbindung. Besonders bevorzugt sind die VerbindungenBetween carbon atoms 22 and 23 (when A is a direct bond) or between carbon atoms 23 and 24 (when A is a methylene group indicates) there is preferably a double bond. Are particularly preferred the connections
(5Z,7E,22E)-(1S,3R,24R)-9,10-Seco-24a-homo-5,7,10(19),22-cholestatet-raen-
1,3,24-triol,
(5Z,7E,22E)-(1S,3R,24S)-9,10-Seco-24a-homo-5,7,10(19),22-cholestatet-raen-
1,3,24-triol,
24-(1(R)-Hydroxy-4-methylpentyl)-9,10-secochola-5Z,7E,10(19),23E-tet-raen-
1(S),3(R)-diol,
24-(1(S)-Hydroxy-4-methylpentyl)-9,10-secochola-5Z,7E,10(19),23E-tet-raen-
1(S),3(R)-diol,
24-(1(R)-Hydroxy-3-methylbutyl)-9,10-secochola-5Z,7E,10(19),23E-tetr-aen-
1(S),3(R)-diol,
24-(1(S)-Hydroxy-3-methylbutyl)-9,10-secochola-5Z,7E,10(19),23E-tetr-aen-
1(S),3(R)-diol,
24-(1(R)-Hydroxy-3-methylbutyl)-9,10-secochola-5Z,7E,10(19)-trien-1(-S),3(R)-
diol,
24-(1(S)-Hydroxy-3-methylbutyl)-9,10-secochola-5Z,7E,10(19)-trien-1(-S),3(R)-
diol,
24-(1(R)-Hydroxy-3-isopropoxypropyl)-9,10-secochola-5Z,7E,10(19),23E--tetraen-
1(S),3(R)-diol,
24-(1(S)-Hydroxy-3-isopropoxypropyl)-9,10-secochola-5Z,7E,10(19),23E--tetraen-
1(S),3(R)-diol,
24-Isopropoxymethyl-9,10-secochola-5Z,7E,10(19),22E-tetraen-1(S),3(R-),24(R)-
triol,
24-Isopropoxymethyl-9,10-secochola-5Z,7E,10(19),22E-tetraen-1(S),3(R-),24(S)-
triol,
24-(2-Isopropoxymethyl)-9,10-secochola-5Z,7E,10(19),22E-tetraen-1(S)-,3(R),24(R)-
triol,
24-(2-Isopropoxymethyl)-9,10-secochola-5Z,7E,10(19),22E-tetraen-1(S)-,3(R),24(S)-
triol.(5Z, 7E, 22E) - (1S, 3R, 24R) -9,10-seco-24a-homo-5,7,10 (19), 22-cholestatet-raen- 1,3,24-triol,
(5Z, 7E, 22E) - (1S, 3R, 24S) -9,10-seco-24a-homo-5,7,10 (19), 22-cholestatet-raen- 1,3,24-triol,
24- (1 (R) -hydroxy-4-methylpentyl) -9,10-secochola-5Z, 7E, 10 (19), 23E-tet-raen- 1 (S), 3 (R) -diol,
24- (1 (S) -hydroxy-4-methylpentyl) -9,10-secochola-5Z, 7E, 10 (19), 23E-tet-raen- 1 (S), 3 (R) -diol,
24- (1 (R) -hydroxy-3-methylbutyl) -9,10-secochola-5Z, 7E, 10 (19), 23E-tetr-aen-1 (S), 3 (R) -diol,
24- (1 (S) -hydroxy-3-methylbutyl) -9,10-secochola-5Z, 7E, 10 (19), 23E-tetr-aen-1 (S), 3 (R) -diol,
24- (1 (R) -hydroxy-3-methylbutyl) -9,10-secochola-5Z, 7E, 10 (19) -triene-1 (-S), 3 (R) - diol,
24- (1 (S) -hydroxy-3-methylbutyl) -9,10-secochola-5Z, 7E, 10 (19) -trien-1 (-S), 3 (R) - diol,
24- (1 (R) -hydroxy-3-isopropoxypropyl) -9,10-secochola-5Z, 7E, 10 (19), 23E - tetraen- 1 (S), 3 (R) -diol,
24- (1 (S) -hydroxy-3-isopropoxypropyl) -9,10-secochola-5Z, 7E, 10 (19), 23E - tetraen- 1 (S), 3 (R) -diol,
24-isopropoxymethyl-9,10-secochola-5Z, 7E, 10 (19), 22E-tetraen-1 (S), 3 (R -), 24 (R) - triol,
24-isopropoxymethyl-9,10-secochola-5Z, 7E, 10 (19), 22E-tetraen-1 (S), 3 (R -), 24 (S) - triol,
24- (2-isopropoxymethyl) -9,10-secochola-5Z, 7E, 10 (19), 22E-tetraen-1 (S) -, 3 (R), 24 (R) - triol,
24- (2-isopropoxymethyl) -9,10-secochola-5Z, 7E, 10 (19), 22E-tetraen-1 (S) -, 3 (R), 24 (S) - triol.
Die natürlichen Vitamine D₂ und D₃ (vgl. allgemeine Formel V) sind an sich biologisch inaktiv und werden erst nach Hydroxylierung in 25-Position in der Leber bzw. in 1-Position in der Niere in deren biologisch aktive Metaboliten umgewandelt. Die Wirkung der Vitamine D₂ und D₃ besteht in der Stabilisierung des Plasma-Ca++- und Plasma-Phosphat-Spie gels, indem einem Absinken dieser Plasma-Spiegel entgegengewirkt wird.The natural vitamins D₂ and D₃ (cf. general formula V) are inherently biologically inactive and are only converted into their biologically active metabolites after hydroxylation in the 25-position in the liver or in the 1-position in the kidney. The effect of vitamins D₂ and D₃ consists in the stabilization of the plasma Ca ++ and plasma phosphate mirror by counteracting a drop in these plasma levels.
Neben ihrer ausgeprägten Wirkung auf den Calcium- und Phosphatstoffwechsel be sitzen Vitamin D₂ und D₃ und seine synthetischen Abkömmlinge auch proliferati onshemmende und zelldifferenzierende Wirkungen (H.F. De Luca The Metabolism and Function of Vitamin D in Biochemistry of Steroid Hormones, Hrsg. H.L.J. Makin, 2nd Edition, Blackwell Scientific Publications 1984, S. 71-116). Bei Vitami D-Anwendung kann es aber zu Überdosierungserscheinungen kommen (Hypercalcämie).In addition to their pronounced effects on the calcium and phosphate metabolism be sit vitamin D₂ and D₃ and its synthetic derivatives also proliferati inhibitory and cell-differentiating effects (H.F. De Luca The Metabolism and Function of Vitamin D in Biochemistry of Steroid Hormones, ed. H.L.J. Makin, 2nd Edition, Blackwell Scientific Publications 1984, pp. 71-116). With Vitami D application, however, overdose symptoms can occur (Hypercalcaemia).
In 24-Stellung hydroxylierte 1α-Cholecalciferole gehen bereits aus der DE-AS- 25 26 981 hervor; sie besitzen eine geringere Toxizität als das entsprechende nicht-hydroxylierte 1α-Cholecalciferol. Die hydroxylierten Verbindungen zeigen eine selektive Aktivierung der intestinalen Calciumabsorption und eine schwä chere Knochenabsorptionswirkung als 1α-Cholecalciferol. Die in der internationalen Patentanmeldung WO 87/00834 beschriebenen 24-Hydro xy-Vitam-D-Analoga können für die Behandlung von durch abnormer Zellprolife ration und/oder Zelldifferentiation hervorgerufenen Störungen beim Menschen und Tier dienen.1α-Cholecalciferols hydroxylated in the 24-position are already known from DE-AS- 25 26 981; they have a lower toxicity than the corresponding one non-hydroxylated 1α-cholecalciferol. The hydroxylated compounds show a selective activation of intestinal calcium absorption and a weak Better bone absorption than 1α-cholecalciferol. The 24-hydro described in international patent application WO 87/00834 xy-Vitam-D analogs can be used for the treatment of abnormal cell proliferation ration and / or cell differentiation caused disorders in humans and Serve animal.
Für verschiedene 1,25-Dihydroxy-Homo-Vitamin-D-Derivate ist eine Dissoziation bezüglich der Eigenschaften Knochenabsorptionswirkung und HL-60 Zelldiferenti ation schon kürzlich von De Luca erwähnt worden. Die Knochenabsorptionswirkung in vitro ist dabei ein direktes Maß für die Calciummobilisierung in vivo.There is a dissociation for various 1,25-dihydroxy-homo-vitamin D derivatives regarding the properties of the bone absorption effect and HL-60 cell differenti ation was recently mentioned by De Luca. The bone absorption effect in vitro is a direct measure of calcium mobilization in vivo.
Es wurde nun gefunden, daß die erfindungsgemäßen seitenketten-homologen Vita min-D-Derivate der allgemeinen Formel I im Vergleich zum Vitamin-D-Abkömmling Calcitriol (1α,25-Dihydroxycholecalciferol) überraschenderweise ein günstigeres Wirkungsspektrum aufweisen. Während die Effekte auf den Calcium- und Phosphat stoffwechsel deutlich abgeschwächt sind (Verringerung der Nebenwirkungen durch Überdosierung oder erforderlicher hoher Dosierung), bleiben die proliferations hemmenden und zelldifferenzierenden Wirkungen annähernd erhalten (Dissoziati on).It has now been found that the side chain homologous Vita min-D derivatives of the general formula I compared to the vitamin D derivative Calcitriol (1α, 25-dihydroxycholecalciferol) surprisingly a cheaper one Show spectrum of activity. While the effects on calcium and phosphate metabolism are significantly weakened (reduction of side effects through Overdose or high dosage required), the proliferations remain inhibiting and cell-differentiating effects are approximately preserved (dissociation on).
Die Vitamin-D-Aktivität der erfindungsgemäßen Verbindungen wird mittels des Calcitriol-Rezeptortests bestimmt. Er wird unter Verwendung eines spezifischen Rezeptorproteins aus dem Darm rachitischer Hühner durchgeführt. Rezeptorhaltiges Bindungsprotein wird mit ³H-Calcitriol (0,5 ng/ml) in einem Reaktionsvolumen von 0,575 ml in Abwesenheit und in Anwesenheit der Prüfsubs tanzen für eine Stunde in einem Teströhrchen inkubiert. Zur Trennung von freiem und rezeptogebundenem Calcitriol wird eine Charcoal-Dextran-Absorption durch geführt. Dazu werden 200 µl einer Charcoal-Dextran-Suspension jedem Teströhr chen zugeführt und bei 22°C für 30 Minuten inkubiert. Anschließend werden die Proben bei 1500×g 10 Minuten bei 4°C zentrifugiert. Der Überstand wird dekan tiert und nach ca. 1stündiger Äquilibrierung in Atom-Light in einem β-Zähler gemessen.The vitamin D activity of the compounds according to the invention is determined using the Calcitriol receptor tests determined. He is using a specific Receptor protein carried out in the intestines of rachitic chickens. Binding protein containing the receptor is combined with 3 H-calcitriol (0.5 ng / ml) in one Reaction volume of 0.575 ml in the absence and in the presence of the test subs dance incubated for one hour in a test tube. To separate from free and receptor-bound calcitriol undergoes charcoal dextran absorption guided. For this purpose, 200 µl of a Charcoal dextran suspension are added to each test tube Chen fed and incubated at 22 ° C for 30 minutes. Then the Centrifuge samples at 1500 × g for 10 minutes at 4 ° C. The supernatant becomes dean and after approx. 1 hour equilibration in atomic light in a β counter measured.
Die mit verschiedenen Konzentrationen der Prüfsubstanz sowie der Referenzsub stanz (unmarkiertes Calcitriol) bei konstanter Konzentration der Bezugssubstanz (³H-Calcitriol) erhaltenen Kompetitionskurven werden in Beziehung zueinander gesetzt und ein Kompetitionsfaktor (KF) ermittelt. Er ist definiert als Quotient aus den Konzentrationen der jeweiligen Prüfsubs tanz und der Referenzsubstanz, die für 50%ige Kompetition erforderlich sind:The with different concentrations of the test substance and the reference sub punch (unlabelled calcitriol) with constant concentration of the reference substance (3 H-Calcitriol) competition curves obtained are in relation to each other set and a competition factor (KF) determined. It is defined as the quotient from the concentrations of the respective test subs dance and the reference substance required for 50% competition:
Demnach besitztAccordingly owns
[5Z,7E,22E)-(1S,3R,24R)-9,10-Seco-24a-homo-5,7,10(19),22-cholestatet-raen-
1,3,24-triol einen KF-Wert von 67 und
[5Z,7E,22E)-(1S,3R,24S)-9,10-Seco-24a-homo-5,7,10(19),22-cholestatet-raen-1,3,24-
triol einen KF-Wert von 0,8.[5Z, 7E, 22E) - (1S, 3R, 24R) -9,10-Seco-24a-homo-5,7,10 (19), 22-cholestatet-raen-1,3,24-triol a KF Value of 67 and
[5Z, 7E, 22E) - (1S, 3R, 24S) -9,10-Seco-24a-homo-5,7,10 (19), 22-cholestatet-raen-1,3,24-triol a KF Value of 0.8.
Zur Bestimmung der antiproliferativen Potenz der erfindungsgemäßen Verbindungen wird stellvertretend mit den Verbindungen A und B als Prüfsubstanzen der nach folgend beschriebene Test durchgeführt:To determine the antiproliferative potency of the compounds according to the invention is representative of the compounds A and B as test substances according to The following test was carried out:
Keratinocyten von neugeborenen Mäusen werden in Abwandlung der Methode von Yuspa, S. und Harris, C.C., "Altered differentiation of mouse epidermal cells treates with retinyl acetate in vitro", Exp. Cell Res. 86 : 95-105, 1974 präpa riert und kultiviert. Neonatale NMRI-Mäuse beiderlei Geschlechts werden durch Dekapitation getötet, die Haut abpräpariert, in einer Antibiotica-Antimykotika-Lösung gewaschen und mit der dermalen Seite nach unten in Dispase II-Lösung (1,2 U/ml in Gewebekul turmedium M199 +25 mmol/l HEPES+15% fötales Kälberserum (FCS)+50 U/ml Peni cillin/Streptomycin (P/S) (Präparationsmedium, PM) bei 4°C über Nacht inku biert. Die Epidermis wird abgezogen und durch Trypsinierung eine Einzelzellsus pension hergestellt. Nach Zentrifugation wird das Zellsediment resuspendiert, nach Trypanblaufärbung die Zahl lebender kleiner runder Zellen bestimmt und die Zellen in einer Dichte von 4×10⁵ Zellen/cm² in Primaria-24-Loch-Platten in Gewebekulturmedium (M199+15% FCS+50 U/ml P/S) ausgesät. Nach 24 Stunden Inkubation bei 37°C werden die Zellen mit phosphatgepufferter Salzlösung (PBS) gewaschen und weitere 24 Stunden in serumfreiem Gewebekulturmedium (M199+50 U/ml P/S+0,5% Ethanol) mit und ohne Testsubstanzen bei 32,5°C inkubiert. Dann werden 0,4 µCi/50 µl ³H-Methyl-thymidin (40 Ci/mmol) zugegeben. Nach 4 Stunden wird das Medium abgesaugt und die Reaktion durch Zugabe von 500 µl eiskalter 10%iger Trichloressigsäure (TCA) beendet. Die Zellen werden mit TCA und PBS gewaschen, durch Inkubation in einer Proteinase K-Lösung (10 mmol/l Tris-HCl, 10 mmol/l EDTA, 10 mmol/l NaCl, 0,2% Triton-X 100, pH 8,0, 50 µg/ml Proteinki nase K) lysiert und das Lysat durch Zentrifugation geklärt. Im Überstand wird szintillationsphotometrisch die Radioaktivität und, nach spezifischer Färbung der DNA mit Diamidinophenylindol (DAPI), die DNA-Konzentration fluoreszenzpho tometrisch bestimmt. Keratinocytes from newborn mice are modified from the method of Yuspa, S. and Harris, C.C., "Altered differentiation of mouse epidermal cells treates with retinyl acetate in vitro ", Exp. Cell Res. 86: 95-105, 1974 prep cultivated and cultivated. Neonatal NMRI mice of both sexes are killed by decapitation, dissected the skin, washed in an antibiotic-antifungal solution and with the dermal side down in Dispase II solution (1.2 U / ml in tissue culture turmedium M199 +25 mmol / l HEPES + 15% fetal calf serum (FCS) +50 U / ml peni cillin / streptomycin (P / S) (preparation medium, PM) at 4 ° C overnight beer. The epidermis is peeled off and a single cell by trypsinization pension manufactured. After centrifugation, the cell sediment is resuspended, after trypan blue staining determine the number of living small round cells and the Cells with a density of 4 × 10⁵ cells / cm² in 24-well Primaria plates Tissue culture medium (M199 + 15% FCS + 50 U / ml P / S) sown. After 24 hours Incubate at 37 ° C with phosphate buffered saline (PBS) washed and a further 24 hours in serum-free tissue culture medium (M199 + 50 U / ml P / S + 0.5% ethanol) with and without test substances at 32.5 ° C. Then 0.4 µCi / 50 µl ³H-methyl-thymidine (40 Ci / mmol) are added. After 4 hours the medium is suctioned off and the reaction is ice-cold by adding 500 μl 10% trichloroacetic acid (TCA) terminated. The cells are made with TCA and PBS washed, by incubation in a Proteinase K solution (10 mmol / l Tris-HCl, 10 mmol / l EDTA, 10 mmol / l NaCl, 0.2% Triton-X 100, pH 8.0, 50 µg / ml protein ki nose K) lysed and the lysate clarified by centrifugation. In the supernatant radioactivity and scintillation photometry, after specific staining the DNA with diamidinophenylindole (DAPI), the DNA concentration fluorescence pho determined geometrically.
Demnach hemmen Calcitriol sowie die Verbindungen A und B dosisabhängig den ³H- Thymidin-Einbau in DNA mit annähernd denselben IC₅₀-Werten von 4×10-9 mol/l bzw. 6,5×10-9 mol/l.Accordingly, calcitriol and the compounds A and B dose-dependently inhibit the ³H-thymidine incorporation in DNA with approximately the same IC₅₀ values of 4 × 10 -9 mol / l and 6.5 × 10 -9 mol / l.
Durch das verminderte Hypercalciämie-Risiko eignen sich die erfindungsgemäßen Substanzen in besonderer Weise zur Herstellung von Arzneimitteln für die Be handlung von Erkrankungen, die durch eine anomale Mitose gekennzeichnet sind (Psoriasis, maligne Tumoren). Voraussetzung für eine erfolgreiche Behandlung ist der Nachweis von Calcitriolrezeptoren im Zielorgan.Due to the reduced risk of hypercalcemia, the invention is suitable Substances in a special way for the production of pharmaceuticals for the Be act of diseases characterized by abnormal mitosis (Psoriasis, malignant tumors). Prerequisite for successful treatment is the detection of calcitriol receptors in the target organ.
Die vorliegende Erfindung bezieht sich somit auch auf pharmazeutische Präpara te, die mindestens eine Verbindung gemäß der allgemeinen Formel I zusammen mit einem pharmazeutisch verträglichen Träger enthalten.The present invention thus also relates to pharmaceutical preparations te, the at least one compound of the general formula I together with contain a pharmaceutically acceptable carrier.
Außerdem betrifft die Erfindung die Verwendung der Verbindungen gemäß Formel I zur Herstellung von Arzneimitteln.The invention also relates to the use of the compounds of the formula I. for the manufacture of pharmaceuticals.
Die Herstellung der seitenketten-homologen-Vitamin-D-Derivate der Formel I erfolgt erfindungsgemäß dadurch, daß eine Verbindung der allgemeinen Formel IVThe production of the side chain homologous vitamin D derivatives of the formula I. takes place according to the invention in that a compound of general formula IV
worinwherein
R¹′ ein Wasserstoffatom oder eine geschützte Hydroxygruppe und
R²′ eine Hydroxyschutzgruppe bedeuten und
A, X sowie R⁵ und R⁶ die in Formel I angegebene Bedeutung haben,
gewünschtenfalls nach selektiver Hydrierung der Doppelbindung in der Seitenket
te zu einer Verbindung der allgemeinen Formel IVaR¹ 'is a hydrogen atom or a protected hydroxy group and
R² 'represent a hydroxy protecting group and
A, X and R⁵ and R⁶ have the meaning given in formula I,
if desired after selective hydrogenation of the double bond in the side chain to a compound of general formula IVa
worin R¹′, R²′, A, X sowie R⁵ und R⁶ die in Formel IV angegebene Bedeutung haben und gewünschtenfalls nach Reduktion der Carbonylfunktion und gegebenenfalls nach Trennung des Gemisches der durch die Reduktion gebildeten epimeren Hydroxyver bindungen der allgemeinen Formeln IIIa und IIIbwherein R¹ ', R²', A, X and R⁵ and R⁶ have the meaning given in formula IV have and if desired after reduction of the carbonyl function and optionally after Separation of the mixture of the epimeric hydroxyver formed by the reduction bonds of the general formulas IIIa and IIIb
worin
R¹′, R², A, X sowie R⁵ und R⁶ die in Formel IV und B und D die in Formel I
angegebene Bedeutung haben,
durch Bestrahlung mit ultraviolettem Licht unter Umkehr der Stereoisomerie
an der 5,6-Doppelbindung in eine Verbindung der allgemeinen Formel IIwherein
R¹ ′, R², A, X and R⁵ and R⁶ have the meanings given in formula I in formula IV and B and D,
by irradiation with ultraviolet light with reversal of the stereoisomerism on the 5,6 double bond into a compound of the general formula II
worin
R¹′, R²′, A, B, D, X sowie R⁵ und R⁶ die in Formel IIIa/IIIb angegebene Be
deutung haben,
umgewandelt
und diese anschließend durch Abspaltung vorhandener Hydroxyschutzgruppen und
gegebenenfalls durch partielle oder vollständige Veresterung der Hydroxy
gruppen in eine Verbindung der allgemeinen Formel I überführt wird.
wherein
R¹ ′, R² ′, A, B, D, X and R⁵ and R⁶ have the meaning given in formula IIIa / IIIb,
converted
and this is then converted into a compound of the general formula I by splitting off existing hydroxyl protective groups and, if appropriate, by partially or completely esterifying the hydroxyl groups.
Die Reduktion der Seitenketten-Carbonylfunktion in der Verbindung der allgemei nen Formel IV erfolgt beispielsweise mit Cer(III)chlorid/Natriumborhydrid in einem polaren Solvens. Bei der Reduktion entsteht sowohl das R- als auch das S-Hydroxyisomere der allgemeinen Formeel IIIa bzw. IIIb. Die beiden Isomeren lassen sich chromatographisch trennen.The reduction of the side chain carbonyl function in the connection of the general NEN formula IV takes place, for example, with cerium (III) chloride / sodium borohydride a polar solvent. Reduction creates both the R and the S-hydroxy isomers of the general formulas IIIa and IIIb. The two isomers can be separated chromatographically.
Gewünschtenfalls kann vor Reduktion der Carbonylfunktion die Doppelbindung in der Seitenkette selektiv hydriert werden. Als Hydrierungsmittel ist u. a. Lithi um-tri-tert.-butoxy-aluminiumhydrid in einem polaren Solvens geeignet.If desired, the double bond in can be reduced before reducing the carbonyl function the side chain are selectively hydrogenated. As a hydrogenating agent is u. a. Lithi um-tri-tert-butoxy aluminum hydride in a polar solvent.
Die nachfolgende Umwandlung einer Verbindung der allgemeinen Formel IIIa/IIIb in eine Verbindung der allgemeinen Formel II erfolgt z. B. durch Bestrahlung mit ultraviolettem Licht in Gegenwart eines sogenannten "Triplettsensibilisators". Im Rahmen der vorliegenden Erfindung wird hierfür Anthracen verwendet. Durch Spaltung der pi-Bindung der 5,6-Doppelbindung, Rotation des A-Ringes um 180° um die 5,6-Einfachbindung und Reetablierung der 5,6-Doppelbindung wird die Stereo isomerie an der 5,6-Doppelbindung umgekehrt.The subsequent conversion of a compound of general formula IIIa / IIIb in a compound of general formula II z. B. by irradiation with ultraviolet light in the presence of a so-called "triplet sensitizer". Anthracene is used for this purpose in the context of the present invention. By Cleavage of the pi bond of the 5,6 double bond, rotation of the A ring by 180 ° the 5.6 single bond and re-establishment of the 5.6 double bond becomes the stereo Reverse isomerism on the 5,6 double bond.
Anschließend werden vorhandene Hydroxyschutzgruppen abgespalten, vorzugsweise unter Verwendung von Tetra-n-butyl-ammoniumfluorid sowie gewünschtenfalls die freien Hydroxygruppen nach gängigen Verfahren partiell oder vollständig mit dem entsprechenden Carbonsäurehalogenid (Halogenid=Chlorid, Bromid) oder Carbon säureanhydrid verestert. Existing hydroxyl protective groups are then split off, preferably using tetra-n-butyl ammonium fluoride and, if desired, the free hydroxyl groups partially or completely with the corresponding carboxylic acid halide (halide = chloride, bromide) or carbon acid anhydride esterified.
Die Herstellung von 1 erfolgt nach M.J. Calverley, Tetrahydron 43, 4609 (1987); siehe auch internationale Patentanmeldung WO 87/00834. Dort ist auch die Herstellung der Ausgangsverbindung, worin R¹′ ein Wasserstoffatom ist, beschrieben.The production of 1 takes place according to M.J. Calverley, Tetrahydron 43, 4609 (1987); see also international patent application WO 87/00834. There is also the preparation of the starting compound in which R¹ ′ is a hydrogen atom, described.
Der Aldehyd 2 wird nach einem neuen Verfahren hergestellt.Aldehyde 2 is produced using a new process.
- a) Zu einer Suspension von 1,8 g Natriumhydrid (80% in Öl) in 70 ml abs. THF tropft man bei 25°C eine Lösung von 15,57 g Diethylphosphono-ethoxyessig säureethylester (hergestellt nach W. Grell und H. Machleidt, Liebigs Ann. Chem. 699, 53 (1966)) in 200 ml THF. Nach Zugabe rührt man weitere 90 Mi nuten bei 60°C, kühlt erneut auf 25°C und gibt tropfenweise eine Lösung von 6,2 g 1 in 70 ml THF hinzu. Man rührt 2 Stunden unter Rückfluß, gießt die abgekühlte Reaktionslösung dann in Wasser und extrahiert mit Ethyl acetat. Nach Trocknen (Na₂SO₄) und Einengen chromatographiert man das er haltene Rohprodukt an Kieselgel mit Hexan/Ethylacetat. Die Hauptfraktion ergibt 5,2 g 1(S),3(R)-Bis-(tert.-butyldimethylsilyloxy)-23-(ethoxy-9,10- secochola-5E,7E,10(19)-tetraen-24-säure-ethylester als öliges Gemisch der C-22-Doppelbindungsisomeren.a) To a suspension of 1.8 g sodium hydride (80% in oil) in 70 ml abs. THF a solution of 15.57 g of diethylphosphono-ethoxyacetic acid is added dropwise at 25 ° C. Acid ethyl ester (produced according to W. Grell and H. Machleidt, Liebigs Ann. Chem. 699, 53 (1966)) in 200 ml THF. After addition, stir for another 90 mi grooves at 60 ° C, cools again to 25 ° C and gives a solution drop by drop of 6.2 g 1 in 70 ml THF. The mixture is stirred under reflux for 2 hours and poured the cooled reaction solution then in water and extracted with ethyl acetate. After drying (Na₂SO₄) and concentrating it is chromatographed holding crude product on silica gel with hexane / ethyl acetate. The main fraction gives 5.2 g of 1 (S), 3 (R) -Bis- (tert-butyldimethylsilyloxy) -23- (ethoxy-9,10- secochola-5E, 7E, 10 (19) -tetraen-24-acid-ethyl ester as an oily mixture of C-22 double bond isomers.
- b) 5,2 g des unter a) erhaltenen Produkts werden in 120 ml Toluol gelöst und bei 0°C langsam mit 20 ml einer 20%igen Lösung von Diisobutylaluminium hydrid in Toluol versetzt. Nach 30 Minuten bei 0°C gießt man die Reakti onslösung vorsichtig in NH₄Cl-Lösung und extrahiert mit Ethylacetat. Nach üblicher Aufarbeitung erhält man 4,88 g 1(S),3(R)-Bis-(tert.-butyldime thylsilyloxy)-23-ethoxy-9,10-secochola-5E,7E,10(19),22-tetraen-24-ol- als farbloses öliges Isomerengemisch, das ohne weitere Reinigung in die Fol gestufe eingesetzt wird. b) 5.2 g of the product obtained under a) are dissolved in 120 ml of toluene and at 0 ° C slowly with 20 ml of a 20% solution of diisobutyl aluminum hydride added in toluene. After 30 minutes at 0 ° C, the reacti are poured solution carefully in NH₄Cl solution and extracted with ethyl acetate. To The usual workup gives 4.88 g of 1 (S), 3 (R) -bis (tert-butyldime) thylsilyloxy) -23-ethoxy-9,10-secochola-5E, 7E, 10 (19), 22-tetraen-24-ol- as colorless oily mixture of isomers, which can be separated into the fol stage is used.
- c) Die unter b) hergestellte Verbindung (4,88 g) wird in einem Gemisch aus 55 ml Dichlormethan und 55 ml 70%iger wäßriger Essigsäure 4 Stunden bei Raumtemperatur gerührt. Man neutralisiert anschließend durch Zugabe von NH₃-Lösung und extrahiert mit Dichlormethan. Das Rohprodukt wird an Kie selgel mit Hexan/Ethylacetat chromatographiert. Auf diese Weise erhält man 2,02 g 1(S),3(R)-Bis-(tert.-butyldimethylsilyloxy)-24-hydroxy-9,10- secochola-5E,7E,10(19)-trien-23-on als farbloses Öl. ¹H-NMR (CDCl₃): δ=0,01 ppm (s, 12H, Si-CH₃), 0,52 (s, 3H, H-18), 0,81 und 0,84 (s, je 9H, Si-t-butyl), 0,90 (d, J=7Hz, 3H, H-21), 3,09 (t, J=5Hz, 1H, OH), 4,10 (dd, 1H, H-24), 4,16 (m, 1H, H-3), 4,21 (dd, 1H, H-24), 4,39 (m, 1H, H-1), 4,88, 4,93 (s, je 1H, H-19), 5,77, 6,39 (d, J=11Hz, je 1H, H-6, H-7).c) The compound (4.88 g) produced under b) is mixed out 55 ml dichloromethane and 55 ml 70% aqueous acetic acid for 4 hours Room temperature stirred. It is then neutralized by adding NH₃ solution and extracted with dichloromethane. The raw product is sent to Kie self-chromatographed with hexane / ethyl acetate. That way 2.02 g of 1 (S), 3 (R) -Bis- (tert-butyldimethylsilyloxy) -24-hydroxy-9.10- secochola-5E, 7E, 10 (19) -trien-23-one as a colorless oil. 1 H-NMR (CDCl₃): δ = 0.01 ppm (s, 12H, Si-CH₃), 0.52 (s, 3H, H-18), 0.81 and 0.84 (s, each 9H, Si-t-butyl), 0.90 (d, J = 7Hz, 3H, H-21), 3.09 (t, J = 5Hz, 1H, OH), 4.10 (dd, 1H, H-24), 4.16 (m, 1H, H-3), 4.21 (dd, 1H, H-24), 4.39 (m, 1H, H-1) ), 4.88, 4.93 (s, each 1H, H-19), 5.77, 6.39 (d, J = 11Hz, each 1H, H-6, H-7).
- d) Das unter c) erhaltene Produkt (2,02 g) wird in 25 ml Methanol und 25 ml THF gelöst und bei 0°C mit 300 mg Natriumborhydrid versetzt. Man rührt 1,5 Stunden bei 0°C, gießt das Reaktionsgemisch dann in NH₄Cl-Lösung und extrahiert mit Ethylacetat. Man erhält 1,75 g 1(S),3(R)-Bis-(tert.-bu tyldimethylsilyloxy)-9,10-secochola-5E,7E,10(19)-trien-23,24-diol als farbloses, öliges Gemisch der 23-Epimeren, das als solches in die Folge reaktion eingesetzt wird.d) The product obtained under c) (2.02 g) is in 25 ml of methanol and 25 ml THF dissolved and 300 mg of sodium borohydride added at 0 ° C. You stir 1.5 hours at 0 ° C, the reaction mixture is then poured into NH₄Cl solution and extracted with ethyl acetate. 1.75 g of 1 (S), 3 (R) -bis (tert-bu tyldimethylsilyloxy) -9,10-secochola-5E, 7E, 10 (19) -triene-23,24-diol as colorless, oily mixture of 23-epimers, which as a result reaction is used.
- e) Man löst 1,75 g des unter d) erhaltenen Produkts in 40 ml Toluol und gibt unter Eiswasserkühlung 1,23 g Bleitetraacetat portionsweise hinzu. Man rührt 30 Minuten, gibt erneut 1,0 g Pb(OAc)₄ hinzu und rührt weitere 15 Minuten bei +5 bis +10°C. Zur Aufarbeitung versetzt man mit NaHCO₃-Lösung, filtriert die entstande ne Suspension über Celite und extrahiert das Filtrat mit Ethylacetat. Das Rohprodukt wird an Kieselgel mit Hexan/Ethylacetat chromatographiert. Nach Kristallisation der Hauptfraktion aus Ethanol erhält man 560 mg 1(S),3(R)-Bis-(tert.-butyldimethylsilyloxy)-20(R)-methyl-9,10-secopr-egna- 5E,7E,10(19)-trien-21-carbaldehyd vom Schmelzpunkt 101-104°C.e) 1.75 g of the product obtained under d) are dissolved in 40 ml of toluene and adds 1.23 g of lead tetraacetate in portions with ice water cooling. The mixture is stirred for 30 minutes, another 1.0 g of Pb (OAc) ₄ is added and stirring is continued 15 minutes at +5 to + 10 ° C. For working up, NaHCO₃ solution is added and the resulting mixture is filtered ne suspension over Celite and extracted the filtrate with ethyl acetate. The The crude product is chromatographed on silica gel with hexane / ethyl acetate. After crystallization of the main fraction from ethanol, 560 mg is obtained 1 (S), 3 (R) -Bis- (tert-butyldimethylsilyloxy) -20 (R) -methyl-9,10-secopr-egna- 5E, 7E, 10 (19) -triene-21-carbaldehyde, melting point 101-104 ° C.
Die Umsetzung des Aldehyds 1 bzw. 2 mit einem Phosphoran der FormelThe reaction of aldehyde 1 or 2 with a phosphorane of the formula
führt zu den Verbindungen der allgemeinen Formel IV (Wittig-Reaktion). leads to the compounds of general formula IV (Wittig reaction).
50 ml Isobutylmethylketon in 240 ml Methanol werden bei 0°C mit 20 ml Brom versetzt und nach Zugabe noch 1,5 Stunden bei +10°C gerührt. Danach setzt man 360 ml Wasser zu und rührt weitere 16 Stunden bei Raumtempera tur. Zur Aufarbeitung wird die Reaktionsmischung mit gesättigter Kochsalzlö sung versetzt, die sich abscheidende organische Phase abgetrennt und die wäßrige Phase mit Ether extrahiert. Die vereinigten organischen Phasen werden mit 10%iger Na₂CO₃-Lösung gewaschen und über Na₂SO₄ getrocknet. Nach Filtration wird das Lösungsmittel im Wasserstrahlvakuum abgezogen und der Rückstand destilliert. Die Hauptfraktion enthält 53,7 g Bromme thylisobutylketon vom Kp 15-20 67-69°C.50 ml of isobutyl methyl ketone in 240 ml of methanol are mixed with 0 ml of bromine at 0 ° C and, after addition, stirred at + 10 ° C for a further 1.5 hours. Then add 360 ml of water and stir for a further 16 hours at room temperature. For working up, the reaction mixture is mixed with saturated sodium chloride solution, the organic phase which separates off and the aqueous phase is extracted with ether. The combined organic phases are washed with 10% Na₂CO₃ solution and dried over Na₂SO₄. After filtration, the solvent is removed in a water jet vacuum and the residue is distilled. The main fraction contains 53.7 g of bromomethyl isobutyl ketone with K p 15-20 67-69 ° C.
Brommethylisobutylketon (53,6 g) und Triphenylphosphin (78,5 g) werden in einem 500 ml-Rundkolben innig vermischt und nach Abklingen der anfängli chen starken Wärmetönung 12 Stunden unter Stickstoff bei Raumtemperatur belassen. Danach wird die feste Reaktionsmasse in 330 ml Methylenchlorid aufgenommen und 30 Minuten unter Rückfluß erhitzt. Nach Zusatz von 500 ml Ether läßt man auf Raumtemperatur abkühlen und isoliert das Produkt durch Filtration. Nach Trocknung erhält man 111,7 g des Phosphoniumsalzes vom Schmelzpunkt 244-245°C.Bromomethyl isobutyl ketone (53.6 g) and triphenylphosphine (78.5 g) are described in a 500 ml round bottom flask mixed intimately and after the initial Chen strong heat tone 12 hours under nitrogen at room temperature leave. Then the solid reaction mass in 330 ml of methylene chloride recorded and heated under reflux for 30 minutes. After adding 500 ml Ether is allowed to cool to room temperature and the product is isolated Filtration. After drying, 111.7 g of the phosphonium salt are obtained Melting point 244-245 ° C.
111,6 g des unter b) erhaltenen Phosphoniumbromids werden sukzessive mit 1500 ml Methylenchlorid und 1500 ml 2N-NaOH versetzt und 30 Minuten bei Raumtemperatur gerührt. Die organische Phase wird abgetrennt, mit Wasser gewaschen und über Na₂SO₄ getrocknet. Der nach Einengen erhaltene feste Rückstand wird aus tert.-Butylmethylether umkristallisiert und ergibt 72,2 g des Ylids vom Schmelzpunkt 120-212°C. 111.6 g of the phosphonium bromide obtained under b) are gradually added 1500 ml of methylene chloride and 1500 ml of 2N NaOH were added and the mixture was stirred for 30 minutes Room temperature stirred. The organic phase is separated off with water washed and dried over Na₂SO₄. The solid obtained after concentration The residue is recrystallized from tert-butyl methyl ether and gives 72.2 g of the ylide, melting point 120-212 ° C.
Die Bildung der Titelverbindung erfolgt in Analogie zu dem unter 1. be schriebenen Verfahren durch Bromierung von Isoamylmethylketon, Umsetzung des Bromids mit Triphenylphosphin zum Phosphoniumsalz und Bildung des Ylids mit 2N NaOH. Aus 50,0 ml Isoamylmethylketon und 18,2 ml Brom erhält man nach destillativer Aufreinigung 54,68 g 1-Brom-5-methyl-hexan-2-on vom Kp 15-20 80-86°C. Aus 54,58 g des Bromids und 74,14 g Triphenylphosphin erhält man 91,6 g des Phosphoniumsalzes vom Schmelzpunkt 230-233°C. Aus 91,6 g des Phosphoniumsalzes erhält man nach Behandlung mit NaOH und Umkristallisation des Rohprodukts aus Methylenchlorid/Ester 69,8 g der Ti telverbindung vom Schmelzpunkt 64-67°C.The formation of the title compound takes place in analogy to the procedure described under 1. be by bromination of isoamyl methyl ketone, reaction of the bromide with triphenylphosphine to the phosphonium salt and formation of the ylide with 2N NaOH. From 50.0 ml of isoamyl methyl ketone and 18.2 ml of bromine, 54.68 g of 1-bromo-5-methyl-hexan-2-one of K p 15-20 80-86 ° C are obtained after purification by distillation. 54.58 g of the bromide and 74.14 g of triphenylphosphine give 91.6 g of the phosphonium salt with a melting point of 230-233 ° C. After treatment with NaOH and recrystallization of the crude product from methylene chloride / ester, 69.8 g of the titanium compound of melting point 64-67 ° C. are obtained from 91.6 g of the phosphonium salt.
2,34 g Natrium werden in 150 ml Isopropanol gelöst. Nach Zugabe von 20,0 g (Chlormethyl)-(triphenylphosphoranylidenmethyl)-keton (R.F. Hudson et al., J. Org. Chem. 28 2446, 1963), in 200 ml Isopropanol gelöst, erhitzt man 8 Stunden unter Rückfluß. Die abgekühlte Reaktionsmischung wird in Kochsalzlösung gegossen und mit Ethylacetat extrahiert. Der nach Einengen erhaltene ölige Rückstand wird an Kieselgel mit Ethylacetat chromatographiert. Man erhält 9,53 g der Titelver bindung.2.34 g of sodium are dissolved in 150 ml of isopropanol. After adding 20.0 g (Chloromethyl) - (triphenylphosphoranylidenemethyl) ketone (R.F. Hudson et al., J. Org. Chem. 28 2446, 1963), dissolved in 200 ml of isopropanol, is heated 8 Hours under reflux. The cooled reaction mixture is poured into saline and with Extracted ethyl acetate. The oily residue obtained after concentration is on Chromatographed silica gel with ethyl acetate. 9.53 g of the title ver binding.
Eine Lösung aus 68,2 g 4-Isopropoxy-2-butanon (F.B. Hasan et al., J. Bio- log. Chem. 256, 7781, 1981) in 315 ml Methanol wird bei 0°C tropfenweise mit 26,9 ml Brom versetzt und danach 1,5 Stunden bei +10°C gerührt. An schließend tropft man 470 ml Wasser zur Reaktionslösung und rührt 16 Stunden bei Raumtemperatur. Zur Aufarbeitung gießt man in gesättigte Kochsalzlösung und extrahiert mit Ether. Destillation des Rohprodukts ergibt 78,07 g des Bromderivats vom Kp 15-20 95°C. A solution of 68.2 g of 4-isopropoxy-2-butanone (FB Hasan et al., J. Biolog. Chem. 256, 7781, 1981) in 315 ml of methanol is added dropwise at 0 ° C. with 26.9 ml Bromine added and then stirred at + 10 ° C for 1.5 hours. 470 ml of water are then added dropwise to the reaction solution and the mixture is stirred at room temperature for 16 hours. For working up, pour into saturated saline and extract with ether. Distillation of the crude product gives 78.07 g of the bromine derivative of K p 15-20 95 ° C.
Aus 78,0 g des unter a) erhaltenen Bromids und 97,85 g Triphenylphosphin erhält man nach dem unter 1. beschriebenen Verfahren 133,35 g des Phos phoniumsalzes vom Schmelzpunkt 183°C.From 78.0 g of the bromide obtained under a) and 97.85 g of triphenylphosphine 133.35 g of Phos are obtained by the method described under 1. phonium salt of melting point 183 ° C.
Das unter b) erhaltene Phosphoniumbromid (133,2 g) wird wie unter 1. be schrieben mit 2N-NaOH in Methylenchlorid behandelt. Nach Umkristallisa tion des Rohprodukts aus Ethylacetat erhält man 64,38 g der Titelverbin dung vom Schmelzpunkt 97°C.The phosphonium bromide (133.2 g) obtained under b) is as in 1. be wrote treated with 2N NaOH in methylene chloride. After recrystallization tion of the crude product from ethyl acetate, 64.38 g of the title compound are obtained The melting point is 97 ° C.
Durch Variation der für die Wittig-Reaktion eingesetzten Keto-Komponente lassen sich in analoger Weise weitere Phosphorane der allgemeinen Formel IV herstel len.By varying the keto component used for the Wittig reaction similarly produce further phosphoranes of the general formula IV len.
Eine Lösung von 1,6 g 1(S),3(R)-Bis-(tert.-butyldimethylsilyloxy)-20(R)-methyl- 9,10-secopregna-5E,7e,10(19)-trien-21-carbaldehyd in 50 ml Toluol wird nach Zusatz von 3,02 g Isoamylcarbonylmethylentriphenylphosphoran 16 Stunden bei 80°C unter Argon gerührt. Anschließend wird das Lösungsmittel unter vermindertem Druck abgezogen und der Rückstand an Kieselgel mit Hexan/Ethylacetat chro matographiert. Die Hauptfraktion ergibt 1,15 g [1(S),3(R)-Bis-(tert.-butyldime thylsilyloxy)-9,10-secochola-5E,7E,10(19),23(E)-tetraen-24-yl]-4-met-hyl-pentan- 1-on als farbloses Öl.A solution of 1.6 g of 1 (S), 3 (R) -Bis- (tert-butyldimethylsilyloxy) -20 (R) -methyl- 9,10-secopregna-5E, 7e, 10 (19) -triene-21-carbaldehyde in 50 ml of toluene is added Add 3.02 g of isoamylcarbonylmethylene triphenylphosphorane for 16 hours 80 ° C stirred under argon. The solvent is then reduced The pressure is removed and the residue on silica gel with hexane / ethyl acetate matographed. The main fraction gives 1.15 g [1 (S), 3 (R) -Bis- (tert-butyldime thylsilyloxy) -9,10-secochola-5E, 7E, 10 (19), 23 (E) -tetraen-24-yl] -4-met-hyl-pentane 1-one as a colorless oil.
¹H-NMR (CDCl₃): δ=0,01 ppm (s, 12H, Si-CH₃), 0,56 (s, 3H, H-18), 0,87 (s, 18H, Si- t.-butyl); 0,88 (d, J=7Hz, 6H, C-(CH₃)₂), 0,95 (d, J=7Hz, 3H, H-21); 4,25 (m, 1H, H-3); 4,55 (m, 1H, H-1); 4,94 und 5,00 (s, je 1H, H-19); 5,82 und 6,46 (d, J=11Hz, je 1H, H-6, H-7); 6,10 (d, J=16Hz, 1H, H-24); 6,80 (m, 1H, H-23).1 H-NMR (CDCl₃): δ = 0.01 ppm (s, 12H, Si-CH₃), 0.56 (s, 3H, H-18), 0.87 (s, 18H, Si t-butyl); 0.88 (d, J = 7Hz, 6H, C- (CH₃) ₂), 0.95 (d, J = 7Hz, 3H, H-21); 4.25 (m, 1H, H -3); 4.55 (m, 1H, H-1); 4.94 and 5.00 (s, 1H each, H-19); 5.82 and 6.46 (d, J = 11Hz, each 1H, H-6, H-7); 6.10 (d, J = 16Hz, 1H, H-24); 6.80 (m, 1H, H-23).
Man löst 572 mg Cer(III)-chlorid-Heptahydrat in 10 ml Methanol und gibt die nach Beispiel 1 hergestellte Verbindung (1,10 g) in 5 ml Methanol gelöst hinzu. Nach Zusatz von 61 mg Natriumborhydrid wird 30 Minuten bei 0°C gerührt. Zur Aufarbeitung gießt man in Wasser, extrahiert mit Dichlormethan, trocknet (Na₂SO₄) und engt ein. Das so erhaltene Gemisch der diastereomeren Alkohole wird durch Chromatographie an Kieselgel mit Hexan/Ethylacetat getrennt. Man erhält in der Elutionsreihenfolge 290 mg 1(S),3(R)-Bis-(tert.-butyldimethyl silyloxy)-24-(1-hydroxy-4-methylpentyl)-9,10-seco-5E,7E,10(19),23(E)--cholate traen (Epimer A) und 120 mg Epimer B. Die Epimeren zeigen identische NMR-Spek tren.572 mg of cerium (III) chloride heptahydrate are dissolved in 10 ml of methanol and are added Compound prepared according to Example 1 (1.10 g) dissolved in 5 ml of methanol. After adding 61 mg of sodium borohydride, the mixture is stirred at 0 ° C. for 30 minutes. To Working up is poured into water, extracted with dichloromethane and dried (Na₂SO₄) and constricts. The mixture of diastereomeric alcohols thus obtained is separated by chromatography on silica gel with hexane / ethyl acetate. Man receives 290 mg of 1 (S), 3 (R) -Bis- (tert-butyldimethyl) in the elution order silyloxy) -24- (1-hydroxy-4-methylpentyl) -9,10-seco-5E, 7E, 10 (19), 23 (E) - cholates traen (Epimer A) and 120 mg Epimer B. The epimers show identical NMR spectra tren.
¹H-NMR (CDCl₃): δ=0,01 ppm (s, 12H, Si-CH₃), 0,49 (s, 3H, H-18), 0,86 (s, 18h, Si- t.-butyl); 0,86 (d, J=7Hz, 6H, C-(CH₃)₂); 0,88 (d, J=7Hz, 3H, H-21); 4,16 (m, 1H, H-3); 4,48 (m, 1H, H-1); 4,88 und 4,93 (s, je 1H, H-19); 5,40 (dd, J=15,5 u. 7Hz, 1H, H- 24); 5,55 (m, 1H, H-23); 5,77 und 6,40 (d, J=11Hz, je 1H, H-6, H-7). 1 H-NMR (CDCl₃): δ = 0.01 ppm (s, 12H, Si-CH₃), 0.49 (s, 3H, H-18), 0.86 (s, 18h, Si t-butyl); 0.86 (d, J = 7Hz, 6H, C- (CH₃) ₂); 0.88 (d, J = 7Hz, 3H, H-21); 4.16 (m, 1H, H-3); 4.48 (m, 1H, H-1); 4.88 and 4.93 (s, 1H each, H-19); 5.40 (dd, J = 15.5 and 7Hz, 1H, H- 24); 5.55 (m, 1H, H-23); 5.77 and 6.40 (d, J = 11Hz, each 1H, H-6, H-7).
Eine Lösung von 290 mg des unter Beispiel 2 erhaltenen Produkts (Epimer A) in 80 ml Toluol wird nach Zusatz von 44 mg Anthracen und 0,01 ml Triethylamin in einem Pyrex-Tauchreaktor mittels einer Quecksilberhochdrucklampe (Philips HPK 125) bestrahlt. Die Bestrahlungszeit beträgt 3,5 Minuten, die Durchmischung der Lösung wird durch Einleiten eines Stickstoffstroms gewährleistet. Nach Einengen und Chromatographie an Kieselgel mit Hexan/Ethylacetat erhält man 241 mg 1(S),3(R)-Bis-(tert.-butyldimethylsilyloxy)-24-(1-hydroxy-4-methylpe-ntyl)-9,10- secochola-5Z,7E,10(19)23(E)-tetraen als farbloses Öl.[α] + 49,6° (CHCl₃, c=0,425).A solution of 290 mg of the product obtained in Example 2 (Epimer A) in 80 ml of toluene is added after adding 44 mg of anthracene and 0.01 ml of triethylamine a Pyrex submersible reactor using a high pressure mercury lamp (Philips HPK 125) irradiated. The irradiation time is 3.5 minutes, the mixing of the Solution is ensured by introducing a stream of nitrogen. After constriction and chromatography on silica gel with hexane / ethyl acetate gives 241 mg 1 (S), 3 (R) -Bis- (tert-butyldimethylsilyloxy) -24- (1-hydroxy-4-methyl-p-ntyl) -9.10- secochola-5Z, 7E, 10 (19) 23 (E) -tetraen as a colorless oil. [α] + 49.6 ° (CHCl₃, c = 0.425).
Analoge Behandlung von 120 mg des nach Beispiel 2 erhaltenen polaren Isomeren (Epimer B) ergibt 113 mg als farbloses Öl.[α] + 41,4° (CHCl₃, c=0,285).Analogous treatment of 120 mg of the polar isomer obtained according to Example 2 (Epimer B) gives 113 mg as a colorless oil. [Α] + 41.4 ° (CHCl₃, c = 0.285).
Eine Lösung von 225 mg des nach Beispiel 3 aus dem Epimeren A erhaltenen Pro dukts in 5 ml THF wird nach Zusatz von 1,31 ml einer 1M-Lösung von Tetrabutyl ammoniumfluorid in THF 60 Minuten bei 60°C gerührt. Nach dem Abkühlen gießt man in gesättigte Kochsalzlösung und extrahiert mit Ethylacetat. Das Rohprodukt wird an Kieselgel mit Hexan/Ethylacetat chromatographiert und liefert 85 mg 24- (1-Hydroxy-4-methylpentyl)-9,10-secochola-5Z,7E,10(19),23E-tetraen-1-(S),3(R)- diol als weißen Schaum.A solution of 225 mg of the pro obtained from epimer A according to Example 3 Duct in 5 ml of THF after adding 1.31 ml of a 1M solution of tetrabutyl ammonium fluoride in THF at 60 ° C for 60 minutes. After cooling, you pour in saturated saline and extracted with ethyl acetate. The raw product is chromatographed on silica gel with hexane / ethyl acetate and gives 85 mg of 24- (1-Hydroxy-4-methylpentyl) -9,10-secochola-5Z, 7E, 10 (19), 23E-tetraen-1- (S), 3 (R) - diol as a white foam.
¹H-NMR (CDCl₃): δ=0,57 ppm (s, 3H, H-18), 0,84 (d, J=7Hz, 3H, H-21); 0,92 (d, J=7Hz 6H, C-(CH₃)₂; 4,03 (m, 1H, H-25); 4,23 (m, 1H, H-3); 4,43 (m, 1H, H-1); 5,00 und 5,33 (s, je 1H, H-19); 5,45 (dd, J=15,5 u. 7Hz, 1H, H-24); 5,60 (m, 1H, H-23); 6,02 und 6,38 (d, J=11Hz, je 11H, H-6, H-7).1 H-NMR (CDCl₃): δ = 0.57 ppm (s, 3H, H-18), 0.84 (d, J = 7Hz, 3H, H-21); 0.92 (d, J = 7Hz 6H, C- (CH₃) ₂; 4.03 (m, 1H, H-25); 4.23 (m, 1H, H-3); 4.43 (m, 1H, H-1); 5.00 and 5.33 (s, 1H each, H-19); 5.45 (dd, J = 15.5 and 7 Hz, 1H, H-24); 5.60 (m, 1H, H-23); 6.02 and 6.38 (d, J = 11Hz, each 11H, H-6, H-7).
Analoge Behandlung des nach Beispiel 3 aus dem Epimer B erhaltenen Produkts (95 mg) ergibt 35 mg des epimeren Triols als farbloses Öl. Die NMR-Spekten der Epimeren sind identisch. Analogous treatment of the product obtained from epimer B according to Example 3 (95 mg) gives 35 mg of the epimeric triol as a colorless oil. The NMR spectra of the Epimers are identical.
In Analogie zu dem unter Beispiel 1 beschriebenen Verfahren setzt man 2,05 g 1(S),3(R)-Bis-(tert.-butyldimethylsilyloxy)-20-(R)-methyl-9,10-secop-regna- 5E,7E,10(19)-trien-21-carbaldehyd in 53 ml Toluol mit 3,4 g Isobutylcarbonyl methylentriphenylphosphoran um. Nach chromatographischer Reinigung erhält man [1(S),3(R)-Bis-(tert.-butyldimethylsilyloxy)-9,10-secochola-5E,7E,10-(19),23(E)- tetraen-24-yl]-3-methyl-butan-1-on vom Schmelzpunkt 79-81°C (aus Ethanol), [α] + 52,6° (CHCl₃, c=0,500).In analogy to the process described in Example 1, 2.05 g is used 1 (S), 3 (R) -Bis- (tert-butyldimethylsilyloxy) -20- (R) -methyl-9,10-secop-regna- 5E, 7E, 10 (19) -triene-21-carbaldehyde in 53 ml of toluene with 3.4 g of isobutylcarbonyl methylenetriphenylphosphorane. After chromatographic purification, one obtains [1 (S), 3 (R) -Bis- (tert-butyldimethylsilyloxy) -9,10-secochola-5E, 7E, 10- (19), 23 (E) - tetraen-24-yl] -3-methyl-butan-1-one with a melting point of 79-81 ° C. (from ethanol), [α] + 52.6 ° (CHCl₃, c = 0.500).
Durch Reduktion von 1,75 g des unter Beispiel 5 erhaltenen Produkts unter den Bedingungen des Beispiels 2 erhält man 1(S),3(R)-Bis-(tert.-butyldimethylsilyl oxy)-24-(1(R,S)-hydroxy-3-methylbutyl)-9,10-secochola-5E,7E,10(19),2-3E-tetraen als öliges Gemisch der Epimeren. Durch Chromatographie an Kieselgel mit Hexan/ Ethylacetat erhält man in der Elutionsreihenfolge 780 mg Epimer A und 600 mg Epimer B als farblose Öle, die NMR-spektroskopisch nicht unterscheidbar sind.By reducing 1.75 g of the product obtained in Example 5 under the Conditions of Example 2 give 1 (S), 3 (R) -Bis- (tert-butyldimethylsilyl oxy) -24- (1 (R, S) -hydroxy-3-methylbutyl) -9,10-secochola-5E, 7E, 10 (19), 2-3E-tetraene as an oily mixture of epimers. By chromatography on silica gel with hexane / Ethyl acetate is obtained in the elution order of 780 mg Epimer A and 600 mg Epimer B as colorless oils that cannot be distinguished by NMR spectroscopy.
Durch triplett-sensibilisierte Photoisimerisierung analog Beispiel 3 und anschließende Silyletherspaltung analog Beispiel 4 erhält man aus 700 mg des nach Beispiel 6 hergestellten Epimers A 240 mg 24-(1-Hydroxy-3-methylbutyl)- 9,10-secochola-5Z,7E,10(19),23E-tetraen-1(S),3(R)-diol vom Zersetzungsintervall 119-125°C, [α] + 38,8° (Methanol, c=0,505).By triplet-sensitized photoisimerization analogous to Example 3 and subsequent silyl ether cleavage analogous to Example 4 is obtained from 700 mg of the Epimer A prepared according to Example 6 240 mg of 24- (1-hydroxy-3-methylbutyl) - 9,10-secochola-5Z, 7E, 10 (19), 23E-tetraen-1 (S), 3 (R) -diol from the decomposition interval 119-125 ° C, [α] + 38.8 ° (methanol, c = 0.505).
Analoge Behandlung von 330 mg Epimer B ergibt 129 mg vom Zersetzungsintervall 139-145°C, [α] + 54,8° (Methanol, c=0,505). Analogous treatment of 330 mg Epimer B gives 129 mg of the decomposition interval 139-145 ° C, [α] + 54.8 ° (methanol, c = 0.505).
Eine Lösung von 170 mg des nach Beispiel 5 erhaltenen Produkts in 5 ml THF wird nach Zusatz von 200 mg Lithium-tri-tert.-butoxy-aluminiumhydrid 90 Minuten bei Raumtemperatur gerührt. Zur Aufarbeitung versetzt man mit 0,8 ml gesättigter NH₄Cl-Lösung, filtriert und engt das Filtrat ein. Chromatographie des Rohpro dukts an Al₂O₃ (Merck, neutral, Stufe III) ergibt 108 mg 1-[1(S),3(R)-Bis- (tert.-butyldimethylsilyloxy)-9,10-secochola-5E,7E,10(19)-trien-24-y-l]-3-me thyl-butan-1-on als farbloses Öl.A solution of 170 mg of the product obtained according to Example 5 in 5 ml of THF after adding 200 mg of lithium tri-tert-butoxy aluminum hydride for 90 minutes Room temperature stirred. For working up, 0.8 ml of saturated is added NH₄Cl solution, filtered and the filtrate concentrated. Chromatography of the Rohpro Duct on Al₂O₃ (Merck, neutral, stage III) gives 108 mg 1- [1 (S), 3 (R) -Bis- (tert-butyldimethylsilyloxy) -9,10-secochola-5E, 7E, 10 (19) -trien-24-y-l] -3-me thyl-butan-1-one as a colorless oil.
¹H-NMR (CDCl₃): δ=0,53 ppm (s, 3H, H-18); 4,22 (m, 1H, H-3); 4,54 (m, 1H, H-1); 4,93 und 4,98 (m, je 1H, H-19); 5,82 und 6,46 (d, J=11Hz, je 1H, H-6, H-7).1 H-NMR (CDCl₃): δ = 0.53 ppm (s, 3H, H-18); 4.22 (m, 1H, H-3); 4.54 (m, 1H, H-1); 4.93 and 4.98 (m, each 1H, H-19); 5.82 and 6.46 (d, J = 11Hz, each 1H, H-6, H-7).
Photochem. Doppelbindungsisomerisierung analog Beispiel 3 und Silyletherspal
tung analog Beispiel 4 ergeben aus 100 mg des Produkts von Beispiel 8 50 mg
1-[1(S),3(R)-Dihydroxy-9,10-secochola-5Z,7E,10(19)-trien-24-yl]-3-me-thyl-butan-
1-on.
UV (Methanol): λ=212 nm (ε=14 300), 265 (15 860).Photochem. Double bond isomerization analogous to example 3 and silyl ether splitting analogous to example 4 yield 50 mg 1- [1 (S), 3 (R) -dihydroxy-9,10-secochola-5Z, 7E, 10 (19) from 100 mg of the product of example 8. -trien-24-yl] -3-methyl-butan-1-one.
UV (methanol): λ = 212 nm (ε = 14 300), 265 (15 860).
Umsetzung von 1,6 g 1(S),3(R)-Bis-(tert.-butyldimethylsilyloxy)-20(R)-methyl- 9,10-secopregna-5E,7E,10(19)-trien-21-carbaldehyd mit (2-Isopropoxyethyl)-carb onylmethylentriphenylphosphoran analog Beispiel 1 ergibt 1,15 g 1-[1(S),3(R)- Bis-(tert.-butyldimethylsilyloxy)-9,10-secochola-5E,7E,10(19),23(E)--tetraen-24- yl]-3-isopropoxy-propan-1-on als farbloses Öl.Reaction of 1.6 g of 1 (S), 3 (R) -Bis- (tert-butyldimethylsilyloxy) -20 (R) -methyl- 9,10-secopregna-5E, 7E, 10 (19) -triene-21-carbaldehyde with (2-isopropoxyethyl) carb onylmethylene triphenylphosphorane analogously to Example 1 gives 1.15 g 1- [1 (S), 3 (R) - Bis- (tert-butyldimethylsilyloxy) -9,10-secochola-5E, 7E, 10 (19), 23 (E) - tetraen-24- yl] -3-isopropoxy-propan-1-one as a colorless oil.
¹H-NMR (CDCl₃): δ=0,01 ppm (s, 12H, Si-CH₃), 0,55 (s, 3H, H-18), 0,86 und 0,90 (s, je 9H, Si-t.-butyl); 0,96 (d, J=7Hz, 3H, H-21); 1,15 (d, J=7Hz, 6H, C(CH₃)₂); 3,60 (m, 1H, CH-O); 3,73 (t, J=7Hz, 2H, CH₂-O); 4,23 (m, 1H, H-3); 4,55 (m, 1H, H-1); 4,95 und 5,00 (m, je 1H, H-19); 5,83 und 6,46 (d, J=11Hz, je 1H, H-6, H-7); 6,11 (d, J=15, 5Hz, 1H, H-24); 6,87 (m, 1H, H-23). 1 H-NMR (CDCl₃): δ = 0.01 ppm (s, 12H, Si-CH₃), 0.55 (s, 3H, H-18), 0.86 and 0.90 (s, each 9H, Si-t.-butyl); 0.96 (d, J = 7Hz, 3H, H-21); 1.15 (d, J = 7Hz, 6H, C (CH₃) ₂); 3.60 (m, 1H, CH-O); 3.73 (t, J = 7Hz, 2H, CH₂-O); 4.23 (m, 1H, H-3); 4.55 (m, 1H, H-1); 4.95 and 5.00 (m, 1H each, H-19); 5.83 and 6.46 (d, J = 11Hz, each 1H, H-6, H-7); 6.11 (d, J = 15, 5Hz, 1H, H-24); 6.87 (m, 1H, H-23).
Durch Reduktion analog Beispiel 2, Photoisomerisierung analog Beispiel 3 und Silyletherspaltung analog Beispiel 4 erhält man aus 1,05 g des nach Beispiel 10 dargestellten Produkts 143 mg 24-(1(R,S)-Hydroxy-3-isopropoxypropyl)-9,10-se cochola-5Z-7E,10(19),23-tetraen-1(S),3(R)-diol als 1 : 1-Gemisch der Diastereo meren, die durch Hochdruckflüssigkeitschromatographie getrennt werden. Die Isomeren weisen identische NMR-Spektren auf.By reduction analogous to Example 2, photoisomerization analogous to Example 3 and Silyl ether cleavage analogous to Example 4 is obtained from 1.05 g of that according to Example 10 product shown 143 mg 24- (1 (R, S) -hydroxy-3-isopropoxypropyl) -9.10-se cochola-5Z-7E, 10 (19), 23-tetraen-1 (S), 3 (R) -diol as a 1: 1 mixture of Diastereo mers, which are separated by high pressure liquid chromatography. The isomers have identical NMR spectra.
¹H-NMR (CDCl₃): δ=0,57 ppm (s, 3H, H-18), 0,94 (d, J=7Hz, 3H, H-21); 1,15 (d, J=7Hz, 6H, C(CH₃)₂), 4,17 (m, 1H, H-3); 4,21 (m, 1H, H-25); 4,38 (m, 1H, H-1); 4,98 und 5,29 (m, je 1H, H-19); 5,45 (dd, J=15,5 und 7Hz, 1H, H-24); 5,63 (m, 1H, H-23); 6,02 und 6,38 (d, J=11Hz, je 1H, H-6, H-7).1 H-NMR (CDCl₃): δ = 0.57 ppm (s, 3H, H-18), 0.94 (d, J = 7Hz, 3H, H-21); 1.15 (d, J = 7Hz, 6H, C (CH₃) ₂), 4.17 (m, 1H, H-3); 4.21 (m, 1H, H-25); 4.38 (m, 1H, H-1); 4.98 and 5.29 (m, each 1H, H-19); 5.45 (dd, J = 15.5 and 7Hz, 1H, H-24); 5.63 (m, 1H, H-23); 6.02 and 6.38 (d, J = 11Hz, each 1H, H-6, H-7).
Durch Reaktion von 3,0 g 1(S),3(R)-Bis-(tert.-butyldimethylsilyloxy)-20(S)-for myl-9,10-secopregna-5E,7E,10(19)-trien mit 4,75 g Isopropoxymethylcarbonylme thylentriphenylphosphoran in Analogie zu Beispiel 1 und Umsetzung des Produkts nach der in den Beispielen 2-4 beschriebenen Sequenz erhält man 24-Isopropoxy methyl-9,10-secochola-5Z,7E,10(19),22E-tetraen-1(S),3(R),24(R,S)-tri-ol. Nach chromatographischer Trennung erhält man Isomer A und Isomer B.By reaction of 3.0 g of 1 (S), 3 (R) -Bis- (tert-butyldimethylsilyloxy) -20 (S) -for myl-9,10-secopregna-5E, 7E, 10 (19) -triene with 4.75 g isopropoxymethylcarbonylme thylenetriphenylphosphoran in analogy to Example 1 and implementation of the product 24-isopropoxy is obtained according to the sequence described in Examples 2-4 methyl-9,10-secochola-5Z, 7E, 10 (19), 22E-tetraen-1 (S), 3 (R), 24 (R, S) -triol. To chromatographic separation gives isomer A and isomer B.
Isomer A: ¹H-NMR (CDCl₃): δ=0,51 ppm (s, 3H); 1,00 (d, J=7Hz, 3H); 1,06 (d, J=7Hz 6H); 3,20 (m, 2H); 3,52 (m, 1H): 3,98 (m, 2H); 4,20 (m, 1H); 4,53 (d, J=10Hz, 1H); 4,63 (d, J=10Hz, 1H); 4,75 (m, 1H); 4,84 (d, J=10Hz); 5,23 (m, 1H); 5,32 (m, 1H); 5,43 (m, 1H); 5,98 (d, J=11Hz, 1H); 6,20 (d, J=11Hz, 1H).Isomer A: 1 H-NMR (CDCl₃): δ = 0.51 ppm (s, 3H); 1.00 (d, J = 7Hz, 3H); 1.06 (d, J = 7Hz 6H); 3.20 (m, 2H); 3.52 (m, 1H): 3.98 (m, 2H); 4.20 (m, 1H); 4.53 (d, J = 10Hz, 1H); 4.63 (d, J = 10Hz, 1H); 4.75 (m, 1H); 4.84 (d, J = 10Hz); 5.23 (m, 1H); 5.32 (m, 1H); 5.43 (m, 1H); 5.98 (d, J = 11Hz, 1H); 6.20 (d, J = 11Hz, 1H).
Isomer B: Schmelzpunkt 84-87°C. Isomer B: melting point 84-87 ° C.
Aus 1(S),3(R)-Bis-(tert.-butyldimethylsilyloxy)-20(S)-formyl-9,10-secopr-egna- 5E,7E,10(19)-trien erhält man durch Umsetzung mit (2-Isopropoxyethyl)-carbonyl methylentriphenylphosphoran nach Beispiel 1 und weitere Umwandlung des Produkts nach den Beispielen 2-4 ein 1 : 1-Isomerengemisch von 24-(2-Isopropoxyethyl)-9,10- secochola-5Z,7E,10(19),22E-tetraen-1(S),3(R),24(R,S)-triol. Chromatographische Trennung ergibt Isomer A und Isomer B.From 1 (S), 3 (R) -Bis- (tert-butyldimethylsilyloxy) -20 (S) -formyl-9,10-secopr-egna- 5E, 7E, 10 (19) -triene are obtained by reaction with (2-isopropoxyethyl) carbonyl methylenetriphenylphosphorane according to Example 1 and further conversion of the product according to Examples 2-4 a 1: 1 isomer mixture of 24- (2-isopropoxyethyl) -9.10- secochola-5Z, 7E, 10 (19), 22E-tetraen-1 (S), 3 (R), 24 (R, S) -triol. Chromatographic Separation gives isomer A and isomer B.
Isomer A: ¹H-NMR (CDCl₃): δ=0,51 ppm (s, 3H); 1,00 (d, J=7Hz, 3H); 1,06 (d, J=7Hz 6H); 3,40 (m, 3H); 3,98 (m, 2H); 4,20 (m, 1H); 4,52 (m, 2H); 4,75 (m, 1H); 4,85 (d, J=10Hz, 1H); 5,22 (m, 1H); 5,35 (m, 2H); 6,00 (d, J=11Hz, 1H); 6,20 (d, J=11Hz, 1H).Isomer A: 1 H-NMR (CDCl₃): δ = 0.51 ppm (s, 3H); 1.00 (d, J = 7Hz, 3H); 1.06 (d, J = 7Hz 6H); 3.40 (m, 3H); 3.98 (m, 2H); 4.20 (m, 1H); 4.52 (m. 2H); 4.75 (m, 1H); 4.85 (d, J = 10Hz, 1H); 5.22 (m, 1H); 5.35 (m. 2H); 6.00 (d, J = 11Hz, 1H); 6.20 (d, J = 11Hz, 1H).
Isomer B: Schmelzpunkt 125-126°CIsomer B: melting point 125-126 ° C
8,0 g (1S,3R)-Bis-(tert.-butyldimethylsilyloxy)-(20S)-formyl-9,10-secopreg-na- (5E,7E,10(19)-trien (Calverley Tetrahedron 43, 4609 (1987)) und 12,0 g Iso butylcarbonylmethylentriphenylphosphoran werden in 46 ml Dimethylsulfoxid 6 Stunden bei 105°C unter Stickstoff gerührt. Anschließend wird die Reaktionsmi schung bei Raumtemperatur mit Essigester verdünnt und mit Kochsalz-Lösung gewa schen. Die organische Phase wird über Natriumsulfat getrocknet und filtriert. Nach Entfernung des Lösungsmittels wird der Rückstand mit Toluol durch Kiesel gel filtriert. Verdampfung des Lösungsmittels und Gradientenchromatographie (Toluol/Hexan (1 : 1)→Toluol) des Rückstandes an Kieselgel ergeben 3,6 g (5E,7E,22E)-(1S,3R)-1,3-Bis-(tert.-butyldimethylsilyloxy-9,10-seco-2-4a-homo- 5,7,10(19)-22-cholestatetraen-24-on als amorphen Feststoff.8.0 g (1S, 3R) -Bis- (tert-butyldimethylsilyloxy) - (20S) -formyl-9,10-secopreg-na- (5E, 7E, 10 (19) -triene (Calverley Tetrahedron 43, 4609 (1987)) and 12.0 g Iso butylcarbonylmethylene triphenylphosphorane are in 6 ml of dimethyl sulfoxide 6 Stirred at 105 ° C under nitrogen. Then the reaction medium diluted with ethyl acetate at room temperature and washed with sodium chloride solution . The organic phase is dried over sodium sulfate and filtered. After removal of the solvent, the residue with toluene through silica gel filtered. Evaporation of the solvent and gradient chromatography (Toluene / hexane (1: 1) → toluene) of the residue on silica gel give 3.6 g (5E, 7E, 22E) - (1S, 3R) -1,3-bis- (tert-butyldimethylsilyloxy-9,10-seco-2-4a-homo- 5,7,10 (19) -22-cholestatetraen-24-one as an amorphous solid.
3,5 g der Verbindung aus Beispiel 14 in 9 ml Tetrahydrofuran und 20,6 ml Metha nol werden mit 20,6 ml einer 0,4 molaren methanolischen CeCl₃ · 7H₂O-Lösung versetzt. Unter Stickstoff werden bei Eiskühlung 570 mg Natriumborhydrid porti onsweise hinzugeben. 3.5 g of the compound from Example 14 in 9 ml of tetrahydrofuran and 20.6 ml of metha nol with 20.6 ml of a 0.4 molar methanolic CeCl₃ · 7H₂O solution transferred. Under nitrogen, 570 mg of sodium borohydride porti add on.
Die Suspension wird noch 40 Minuten bei Eiskühlung gerührt und dann in Eis/- Kochsalz-Lösung gegeben. Die Wasserphase wird mit Essigester extrahiert, die organische Phase mit Wasser neutral gewaschen und über Natriumsulfat getrock net. Filtration und Entfernung des Lösungsmittels ergeben 3,5 g Öl. Durch Chro matographie an Kieselgel mit Essigester/Hexan (1 : 9) werden 534 mg (5E,7E,33E)- (1S,3R,24R)-1,3-Bis-(tert.-butyldimethylsilyloxy)-9,10-seco-24a-homo--5,7,10- (19),22-cholestatetraen-24-ol und 692 mg (5E,7E,22E)-(1S,3R,24S)-1,3-Bis-(tert- butyldimethylsilyloxy)-9,10-seco-24a-homo-5,7,10(19),22-cholestatetr-aen-24-ol jeweils als kristallisierendes Öl erhalten.The suspension is stirred for a further 40 minutes while cooling with ice and then in ice. Given saline solution. The water phase is extracted with ethyl acetate organic phase washed neutral with water and dried over sodium sulfate net. Filtration and removal of the solvent give 3.5 g of oil. By chro matography on silica gel with ethyl acetate / hexane (1: 9) become 534 mg (5E, 7E, 33E) - (1S, 3R, 24R) -1,3-bis- (tert-butyldimethylsilyloxy) -9,10-seco-24a-homo - 5,7,10- (19), 22-cholestatetraen-24-ol and 692 mg (5E, 7E, 22E) - (1S, 3R, 24S) -1,3-bis- (tert- butyldimethylsilyloxy) -9,10-seco-24a-homo-5,7,10 (19), 22-cholestatetr-aen-24-ol each obtained as a crystallizing oil.
534 mg (5E,7E,22E)-(1S,3R,24R)-1,3-Bis-(tert.-butyldimethylsilyloxy)-9,10-s-eco- 24a-homo-5,7,10(19),22-cholestatetraen-24-ol werden in 75 ml Toluol gelöst und nach Zugabe von 89 mg Anthracen und 1 Tropfen Triethylamin 5 Minuten bei Raum temperatur mit einer Quecksilberhochdrucklampe (Heraeus TQ 150) durch Pyrex- Glas bestrahlt. Die trübe Reaktionsmischung wird filtriert, eingeengt und der Rückstand mit Essigester/Hexan (1 : 9) an Kieselgel chromatographiert. Es werden 410 mg (5Z,7E,22E)-(1S,3R,24R)-1,3-Bis-(tert.-butyldimethylsilyloxy)-9,10-s-eco- 24a-homo-5,7,10(19),22-cholestatetraen-24-ol als Öl erhalten.534 mg (5E, 7E, 22E) - (1S, 3R, 24R) -1,3-bis- (tert-butyldimethylsilyloxy) -9.10-s-eco- 24a-homo-5,7,10 (19), 22-cholestatetraen-24-ol are dissolved in 75 ml of toluene and after adding 89 mg of anthracene and 1 drop of triethylamine in the room for 5 minutes temperature with a high pressure mercury lamp (Heraeus TQ 150) using Pyrex Irradiated glass. The cloudy reaction mixture is filtered, concentrated and the Chromatograph the residue with ethyl acetate / hexane (1: 9) on silica gel. It will 410 mg (5Z, 7E, 22E) - (1S, 3R, 24R) -1,3-bis- (tert-butyldimethylsilyloxy) -9.10-s-eco- Obtained 24a-homo-5,7,10 (19), 22-cholestatetraen-24-ol as an oil.
Analog den angegebenen Bedingungen werden aus 680 mg (5E,7E,22E)-(1S,3R,24S)- 1,3-Bis-(tert.-butyldimethylsilyloxy)-9,10-seco-24a-homo-5,7,10(19),-22-cholesta tetraen-24-ol 570 mg (5Z,7E,22E)-(1S,3R,24S)-1,3-Bis-(tert.-butyldimethylsilyl oxy)-9,10-seco-24a-homo-5,7,10(19),22-cholestatetraen-24-ol als Öl erhalten.Analogous to the specified conditions, 680 mg (5E, 7E, 22E) - (1S, 3R, 24S) - 1,3-bis (tert-butyldimethylsilyloxy) -9,10-seco-24a-homo-5,7,10 (19), 22-cholesta tetraen-24-ol 570 mg (5Z, 7E, 22E) - (1S, 3R, 24S) -1,3-bis (tert-butyldimethylsilyl oxy) -9,10-seco-24a-homo-5,7,10 (19), 22-cholestatetraen-24-ol obtained as an oil.
200 mg (5Z,7E,22E)-(1S,3R,24R)-1,3-Bis-(tert.-butyldimethylsilyloxy)-9,10-s-eco- 24a-homo-5,7,10(19),22-cholestatetraen-24-ol in 8,8 ml Tetrahydrofuran werden mit 1,5 ml einer 1molaren Lösung von Tetrabutylammoniumfluorid in Tetrahydrofu ran 50 Minuten bei 60°C gehalten. Die abgekühlte Reaktionsmischung wird mit Essigester verdünnt und mit Natriumhydrogencarbonat-Lösung und Kochsalzlösung gewaschen. Die organische Phase wird mit Wasser neutral gewaschen und über Na triumsulfat getrocknet. Filtration und Verdampfung des Lösungsmittels ergeben 210 mg Öl als Rückstand. Durch Chromatographie an Kieselgel mit Essigester/ Hexan (2 : 1) werden 124 mg (5Z,7E,22E)-(1S,3R,24R)-9,10-Seco-24a-homo- 5,7,10(19),22-cholestatetraen-1,3,24-triol als amorpher Feststoff erhalten. UV(MeOM) λ=210 (ε=14 720), 264 (14 240)200 mg (5Z, 7E, 22E) - (1S, 3R, 24R) -1,3-bis- (tert-butyldimethylsilyloxy) -9.10-s-eco- 24a-homo-5,7,10 (19), 22-cholestatetraen-24-ol in 8.8 ml of tetrahydrofuran with 1.5 ml of a 1 molar solution of tetrabutylammonium fluoride in tetrahydrofu ran for 50 minutes at 60 ° C. The cooled reaction mixture is with Diluted ethyl acetate and with sodium bicarbonate solution and saline washed. The organic phase is washed neutral with water and over Na trium sulfate dried. Filtration and evaporation of the solvent result 210 mg of oil as a residue. By chromatography on silica gel with ethyl acetate / Hexane (2: 1) are 124 mg (5Z, 7E, 22E) - (1S, 3R, 24R) -9,10-Seco-24a-homo- 5,7,10 (19), 22-cholestatetraen-1,3,24-triol obtained as an amorphous solid. UV (MeOM) λ = 210 (ε = 14 720), 264 (14 240)
Unter den Bedingungen des Beispiels 17 werden aus 200 mg (5Z,7E,22E)-(1S,3R,24S)- 1,3-Bis-(tert.-butyldimethylsilyloxy)-9,10-seco-24a-homo-5,7,10(19),-22- cholestatetraen-24-ol 88 mg (5Z,7E,22E)-(1S,3R,24S)-9,10-Seco-24a-homo-5,7,10- (19),22-cholestatetraen-1,3,24-triol vom Schmelzpunkt 128-129°C erhalten.Under the conditions of Example 17, 200 mg (5Z, 7E, 22E) - (1S, 3R, 24S) - 1,3-bis (tert-butyldimethylsilyloxy) -9,10-seco-24a-homo-5,7,10 (19), - 22- cholestatetraen-24-ol 88 mg (5Z, 7E, 22E) - (1S, 3R, 24S) -9,10-Seco-24a-homo-5,7,10- (19), 22-cholestatetraen-1,3,24-triol obtained from melting point 128-129 ° C.
Claims (13)
R² ein Wasserstoffatom oder eine Acylgruppe mit 1 bis 9 Kohlenstoffatomen,
A entweder eine direkte Bindung zwischen dem Kohlenstoffatom 20 und dem Kohlenstoffatom 22 oder eine Methylenbrücke (-CH₂-) zwischen diesen beiden Kohlenstoffatomen,
B und D entweder jeweils ein Wasserstoffatom oder gemeinsam eine zweite Bindung (E-konfigurierte Doppelbindung),
R³ oder R⁴ eine Hydroxy- oder Acyloxygruppe mit 1 bis 9 Kohlenstoffatomen, und der jeweils andere Substituent ein Wasserstoffatom oder R³ und R⁴ ge meinsam ein Sauerstoffatom,
X entweder einen Alkylenrest -(CH₂)n- oder einen Alkylenoxyrest -(CH₂)nO- mit n=1 bis 3 sowie
R⁵ und R⁶ unabhängig voneinander jeweils einen linearen oder verzweigten Alkylrest mit bis zu 4 Kohlenstoffatomen, eine Trifluormethylgruppe oder gemeinsam einen mit dem tertiären Kohlenstoffatom gebildeten gesättigten, ungesättigten oder aromatischen carbocyclischen oder heterocyclischen 5- oder 6gliedrigen Ring
bedeuten. 1. Side chain homologous vitamin D derivatives of the formula I. wherein R1 represents a hydrogen atom, a hydroxy or an acyloxy group having 1 to 9 carbon atoms,
R² is a hydrogen atom or an acyl group with 1 to 9 carbon atoms,
A either a direct bond between the carbon atom 20 and the carbon atom 22 or a methylene bridge (-CH₂-) between these two carbon atoms,
B and D either each represent a hydrogen atom or together a second bond (E-configured double bond),
R³ or R⁴ is a hydroxy or acyloxy group with 1 to 9 carbon atoms, and the other substituent is a hydrogen atom or R³ and R⁴ are together an oxygen atom,
X is either an alkylene radical - (CH₂) n - or an alkyleneoxy radical - (CH₂) n O- with n = 1 to 3 and
R⁵ and R⁶ independently of one another each have a linear or branched alkyl radical having up to 4 carbon atoms, a trifluoromethyl group or together a saturated, unsaturated or aromatic carbocyclic or heterocyclic 5- or 6-membered ring formed with the tertiary carbon atom
mean.
(5Z,7E,22E)-(1S,3R,24S)-9,10-Seco-24a-homo-5,7,10(19),22-cholestatet-raen- 1,3,24-triol,
24-(1(R)-Hydroxy-4-methylpentyl)-9,10-secochola-5Z,7E,10(19),23E-tet-raen- 1(S),3(R)-diol,
24-(1(S)-Hydroxy-4-methylpentyl)-9,10-secochola-5Z,7E,10(19),23E-tet-raen- 1(S),3(R)-diol,
24-(1(R)-Hydroxy-3-methylbutyl)-9,10-secochola-5Z,7E,10(19),23E-tetr-aen- 1(S),3(R)-diol,
24-(1(S)-Hydroxy-3-methylbutyl)-9,10-secochola-5Z,7E,10(19),23E-tetr-aen- 1(S),3(R)-diol,
24-(1(R)-Hydroxy-3-methylbutyl)-9,10-secochola-5Z,7E,10(19)-trien-1(-S),3(R)- diol,
24-(1(S)-Hydroxy-3-methylbutyl)-9,10-secochola-5Z,7E,10(19)-trien-1(-S),3(R)- diol,
24-(1(R)-Hydroxy-3-isopropoxypropyl)-9,10-secochola-5Z,7E,10(19),23E--tetraen- 1(S),3(R)-diol,
24-(1(S)-Hydroxy-3-isopropoxypropyl)-9,10-secochola-5Z,7E,10(19),23E--tetraen- 1(S),3(R)-diol,
24-Isopropoxymethyl-9,10-secochola-5Z,7E,10(19),22E-tetraen-1(S),3(R-),24(R)- triol,
24-Isopropoxymethyl-9,10-secochola-5Z,7E,10(19),22E-tetraen-1(S),3(R-),24(S)- triol,
24-(2-Isopropoxymethyl)-9,10-secochola-5Z,7E,10(19),22E-tetraen- 1(S),3(R),24(R)-triol,
24-(2-Isopropoxymethyl)-9,10-secochola-5Z,7E,10(19),22E-tetraen- 1(S),3(R),24(S)-triol.10. (5Z, 7E, 22E) - (1S, 3R, 24R) -9,10-seco-24a-homo-5,7,10 (19), 22-cholestatet-raen-1,3,24-triol ,
(5Z, 7E, 22E) - (1S, 3R, 24S) -9,10-seco-24a-homo-5,7,10 (19), 22-cholestatet-raen- 1,3,24-triol,
24- (1 (R) -hydroxy-4-methylpentyl) -9,10-secochola-5Z, 7E, 10 (19), 23E-tet-raen- 1 (S), 3 (R) -diol,
24- (1 (S) -hydroxy-4-methylpentyl) -9,10-secochola-5Z, 7E, 10 (19), 23E-tet-raen- 1 (S), 3 (R) -diol,
24- (1 (R) -hydroxy-3-methylbutyl) -9,10-secochola-5Z, 7E, 10 (19), 23E-tetr-aen-1 (S), 3 (R) -diol,
24- (1 (S) -hydroxy-3-methylbutyl) -9,10-secochola-5Z, 7E, 10 (19), 23E-tetr-aen-1 (S), 3 (R) -diol,
24- (1 (R) -hydroxy-3-methylbutyl) -9,10-secochola-5Z, 7E, 10 (19) -triene-1 (-S), 3 (R) - diol,
24- (1 (S) -hydroxy-3-methylbutyl) -9,10-secochola-5Z, 7E, 10 (19) -trien-1 (-S), 3 (R) - diol,
24- (1 (R) -hydroxy-3-isopropoxypropyl) -9,10-secochola-5Z, 7E, 10 (19), 23E - tetraen- 1 (S), 3 (R) -diol,
24- (1 (S) -hydroxy-3-isopropoxypropyl) -9,10-secochola-5Z, 7E, 10 (19), 23E - tetraen- 1 (S), 3 (R) -diol,
24-isopropoxymethyl-9,10-secochola-5Z, 7E, 10 (19), 22E-tetraen-1 (S), 3 (R -), 24 (R) - triol,
24-isopropoxymethyl-9,10-secochola-5Z, 7E, 10 (19), 22E-tetraen-1 (S), 3 (R -), 24 (S) - triol,
24- (2-isopropoxymethyl) -9,10-secochola-5Z, 7E, 10 (19), 22E-tetraen-1 (S), 3 (R), 24 (R) -triol,
24- (2-isopropoxymethyl) -9,10-secochola-5Z, 7E, 10 (19), 22E-tetraen-1 (S), 3 (R), 24 (S) -triol.
R¹′ ein Wasserstoffatom oder eine geschützte Hydroxygruppe und
R²′ eine Hydroxyschutzgruppe bedeuten und
A, X sowie R⁵ und R⁶ die in Formel I angegebene Bedeutung haben,
gewünschtenfalls nach selektiver Hydrierung der Doppelbindung in der Seiten kette zu einer Verbindung der allgemeinen Formel IVa worin R¹′, R²′, A, X sowie R⁵ und R⁶ die in Formel IV angegebene Bedeutung haben und
gewünschtenfalls nach Reduktion der Carbonylfunktion und gegebenenfalls nach Trennung des Gemisches der durch die Reduktion gebildeten epimeren Hydroxy verbindungen der allgemeinen Formel IIIa und IIIb worin
R¹′, R²′, A, X sowie R⁵ und R⁶ die in Formel IV und B und D die in Formel I angegebene Bedeutung haben,
durch Bestrahlung mit ultraviolettem Licht unter Umkehr der Stereoisomerie an der 5,6-Doppelbindung in eine Verbindung der allgemeinen Formel II worin
R¹′, R²′, A, B, D, X sowie R⁵ und R⁶ die in Formel IIIa/IIIb angegebene Bedeutung haben,
umgewandelt
und diese anschließend durch Abspaltung vorhandener Hydroxyschutzgruppen und gegebenenfalls durch partielle oder vollständige Veresterung der Hydroxy gruppen in eine Verbindung der allgemeinen Formel I überführt wird. 11. Process for the production of side chain homologous vitamin D derivatives of the formula I. wherein R¹, R², R³, R⁴, R⁵ and R⁶ and A, B, D and X have the meaning given in claim 1, characterized in that a compound of the general formula IV wherein
R¹ 'is a hydrogen atom or a protected hydroxy group and
R² 'represent a hydroxy protecting group and
A, X and R⁵ and R⁶ have the meaning given in formula I,
if desired after selective hydrogenation of the double bond in the side chain to a compound of general formula IVa wherein R¹ ', R²', A, X and R⁵ and R⁶ have the meaning given in formula IV and
if desired after reduction of the carbonyl function and optionally after separation of the mixture of the epimeric hydroxy compounds formed by the reduction of the general formula IIIa and IIIb wherein
R¹ ′, R² ′, A, X and R⁵ and R⁶ have the meanings given in formula IV and B and D as given in formula I,
by irradiation with ultraviolet light with reversal of the stereoisomerism on the 5,6 double bond into a compound of the general formula II wherein
R¹ ′, R² ′, A, B, D, X and R⁵ and R⁶ have the meaning given in formula IIIa / IIIb,
converted
and this is then converted into a compound of the general formula I by splitting off existing hydroxyl protective groups and, if appropriate, by partially or completely esterifying the hydroxyl groups.
Priority Applications (20)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4003854A DE4003854A1 (en) | 1990-02-06 | 1990-02-06 | New vitamin=D derivs. - are cell differentiators and proliferation inhibitors useful for treating psoriasis and malignant tumours |
| IE38991A IE70239B1 (en) | 1990-02-06 | 1991-02-06 | Side-chain homologous vitamin D derivatives process for their production pharmaceutical preparations containing these derivatives and their use as pharmaceutical agents |
| AU72161/91A AU652739B2 (en) | 1990-02-06 | 1991-02-06 | Side-chain-homologous vitamin D derivatives, process for producing them, pharmaceutical preparations containing these derivatives and their use as medicaments |
| EP91250032A EP0441467B1 (en) | 1990-02-06 | 1991-02-06 | Side chain homologes of vitamin D derivatives, process for their preparation, pharmaceutical compositions containing them and their use as medicines |
| CA002058637A CA2058637A1 (en) | 1990-02-06 | 1991-02-06 | Side-chain homologous vitamin d derivatives, process for their production, pharmaceutical preparations containing these derivatives and their use as pharmaceutical agents |
| ES91250032T ES2055521T3 (en) | 1990-02-06 | 1991-02-06 | DERIVATIVES OF VITAMIN D THAT ARE APPROVED IN THE SIDE CHAIN, PROCEDURE FOR THEIR PREPARATION, PHARMACEUTICAL PREPARATIONS THAT CONTAIN THESE DERIVATIVES AS WELL AS THEIR USE AS MEDICINES. |
| ZA91901A ZA91901B (en) | 1990-02-06 | 1991-02-06 | Side-chain homologous vitamin d derivatives,process for their production,pharmaceutical preparations containing these derivatives and their use as pharmaceutical agents |
| PCT/DE1991/000104 WO1991012238A1 (en) | 1990-02-06 | 1991-02-06 | Side-chain-homologous vitamin d derivatives, process for producing them, pharmaceutical preparations containing these derivatives and their use as medicaments |
| DE59101738T DE59101738D1 (en) | 1990-02-06 | 1991-02-06 | Side chain homologous vitamin D derivatives, processes for their preparation, pharmaceutical preparations containing them, and their use as medicines. |
| IL9715891A IL97158A (en) | 1990-02-06 | 1991-02-06 | Side-chain homologous vitamin D derivatives, processes for the preparation thereof and pharmaceutical compositions containing the same |
| DK91250032.9T DK0441467T3 (en) | 1990-02-06 | 1991-02-06 | Side-chain homologous vitamin D derivatives, processes for their preparation, pharmaceutical compositions containing these derivatives and their use as a drug |
| CS91281A CZ280203B6 (en) | 1990-02-06 | 1991-02-06 | Vitamin d derivatives with homologic side chains, process of their preparation, pharmaceutical preparations in which said derivatives are comprised and their use |
| CN91101506A CN1029400C (en) | 1990-02-06 | 1991-02-06 | Preparation method of side chain vitamin D derivatives |
| AT91250032T ATE106391T1 (en) | 1990-02-06 | 1991-02-06 | SIDE CHAIN HOMOLOGUES VITAMIN D DERIVATIVES, PROCESS FOR THEIR MANUFACTURE, PHARMACEUTICAL PREPARATIONS CONTAINING THEM, AND THEIR USE AS MEDICINAL PRODUCTS. |
| PT96679A PT96679B (en) | 1990-02-06 | 1991-02-06 | PROCESS FOR THE PREPARATION OF VITAMIN D DERIVATIVES HOMES OF LATERAL CHAINS AND PHARMACEUTICAL COMPOSITIONS THAT CONTAIN THEM |
| JP3503657A JPH05501718A (en) | 1990-02-06 | 1991-02-06 | Side-chain homologue vitamin D-derivatives, processes for their production and pharmaceutical preparations containing said derivatives for the treatment of diseases exhibiting hyperproliferation |
| NO913913A NO300209B1 (en) | 1990-02-06 | 1991-10-04 | Analogous Process for Preparation of Side-Chain Homologous Vitamin D Derivatives |
| FI914677A FI100598B (en) | 1990-02-06 | 1991-10-04 | Process for the preparation of new therapeutically useful vitamin D derivatives of side chain homologues |
| HU913475A HUT59665A (en) | 1990-02-06 | 1991-11-05 | Process for producing side-chain homologues of d-vitamine derivatives and pharmaceutical compositions contianing them as active components |
| US08/069,805 US5532228A (en) | 1990-02-06 | 1993-06-01 | Side-chain homologous vitamin D derivatives, process for their production, pharmaceutical preparations containing these derivatives and their use as pharmaceutical agents |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4003854A DE4003854A1 (en) | 1990-02-06 | 1990-02-06 | New vitamin=D derivs. - are cell differentiators and proliferation inhibitors useful for treating psoriasis and malignant tumours |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE4003854A1 true DE4003854A1 (en) | 1991-08-08 |
Family
ID=6399728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE4003854A Withdrawn DE4003854A1 (en) | 1990-02-06 | 1990-02-06 | New vitamin=D derivs. - are cell differentiators and proliferation inhibitors useful for treating psoriasis and malignant tumours |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE4003854A1 (en) |
| ZA (1) | ZA91901B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0528209A1 (en) * | 1991-08-09 | 1993-02-24 | F. Hoffmann-La Roche Ag | Process for preparing intermediates for vitamin D derivatives and novel compounds obtained thereby |
| US5225569A (en) * | 1991-08-09 | 1993-07-06 | Hoffmann-La Roche Inc. | Process for precursors to calcitriol and related compounds |
| DE19619036A1 (en) * | 1996-04-30 | 1997-11-13 | Schering Ag | New vitamin D derivatives with carbo- or heterocyclic substituents at C-25, process for their preparation and their use in the manufacture of medicinal products |
| DE19935771A1 (en) * | 1999-07-23 | 2001-02-01 | Schering Ag | New vitamin D derivatives with cyclic substructures in the side chains, processes and intermediates for their manufacture and their use in the manufacture of pharmaceuticals |
-
1990
- 1990-02-06 DE DE4003854A patent/DE4003854A1/en not_active Withdrawn
-
1991
- 1991-02-06 ZA ZA91901A patent/ZA91901B/en unknown
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0528209A1 (en) * | 1991-08-09 | 1993-02-24 | F. Hoffmann-La Roche Ag | Process for preparing intermediates for vitamin D derivatives and novel compounds obtained thereby |
| US5225569A (en) * | 1991-08-09 | 1993-07-06 | Hoffmann-La Roche Inc. | Process for precursors to calcitriol and related compounds |
| DE19619036A1 (en) * | 1996-04-30 | 1997-11-13 | Schering Ag | New vitamin D derivatives with carbo- or heterocyclic substituents at C-25, process for their preparation and their use in the manufacture of medicinal products |
| US6600058B1 (en) | 1996-04-30 | 2003-07-29 | Schering Aktiengellschaft | Vitamin D derivatives with carbo- or heterocyclic substituents at C-25, a process for their production, intermediate products and their use for producing medicaments |
| US6613920B1 (en) | 1996-04-30 | 2003-09-02 | Schering Aktiengesellschaft | Vitamin D derivatives with carbo- or heterocyclic substituents at C-25, process for their production, intermediate products and use for the production of pharmaceutical agents |
| US6642218B2 (en) | 1996-04-30 | 2003-11-04 | Schering Aktiengesellschaft | Vitamin D derivatives with carbo- or heterocyclic substituents at C-25, a process for their production, intermediate products and their use for producing medicaments |
| DE19935771A1 (en) * | 1999-07-23 | 2001-02-01 | Schering Ag | New vitamin D derivatives with cyclic substructures in the side chains, processes and intermediates for their manufacture and their use in the manufacture of pharmaceuticals |
| US7115758B2 (en) | 1999-07-23 | 2006-10-03 | Schering Ag | Vitamin D derivatives with cyclic substructures in the side chains, process and intermediate products for their production, and the use for the production of pharmaceutical agents |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA91901B (en) | 1991-11-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8127 | New person/name/address of the applicant |
Owner name: SCHERING AG, 13353 BERLIN, DE |
|
| 8141 | Disposal/no request for examination |