ES2351119T3 - Derivados de 2-pirrolidin-2-il-[1,3,4 ]-oxadiazol y su utilización como antidepresivos. - Google Patents
Derivados de 2-pirrolidin-2-il-[1,3,4 ]-oxadiazol y su utilización como antidepresivos. Download PDFInfo
- Publication number
- ES2351119T3 ES2351119T3 ES03794933T ES03794933T ES2351119T3 ES 2351119 T3 ES2351119 T3 ES 2351119T3 ES 03794933 T ES03794933 T ES 03794933T ES 03794933 T ES03794933 T ES 03794933T ES 2351119 T3 ES2351119 T3 ES 2351119T3
- Authority
- ES
- Spain
- Prior art keywords
- alkyl
- pyrrolidin
- oxadiazol
- phenyl
- aryl
- 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.)
- Expired - Lifetime
Links
- 239000000935 antidepressant agent Substances 0.000 title description 7
- 229940005513 antidepressants Drugs 0.000 title description 7
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 32
- 125000003118 aryl group Chemical group 0.000 claims abstract description 32
- 125000004169 (C1-C6) alkyl group Chemical group 0.000 claims abstract description 28
- 125000000753 cycloalkyl group Chemical group 0.000 claims abstract description 28
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims abstract description 26
- 125000000623 heterocyclic group Chemical group 0.000 claims abstract description 22
- 125000001072 heteroaryl group Chemical group 0.000 claims abstract description 12
- 125000005842 heteroatom Chemical group 0.000 claims abstract description 11
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 claims abstract description 10
- 125000002877 alkyl aryl group Chemical group 0.000 claims abstract description 10
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims abstract description 10
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 10
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 9
- 125000000876 trifluoromethoxy group Chemical group FC(F)(F)O* 0.000 claims abstract description 8
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 7
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 5
- 125000006376 (C3-C10) cycloalkyl group Chemical group 0.000 claims abstract description 4
- 101500021084 Locusta migratoria 5 kDa peptide Proteins 0.000 claims abstract description 4
- 125000002015 acyclic group Chemical group 0.000 claims abstract description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 4
- 125000000468 ketone group Chemical group 0.000 claims abstract description 4
- 125000003262 carboxylic acid ester group Chemical group [H]C([H])([*:2])OC(=O)C([H])([H])[*:1] 0.000 claims abstract 2
- 125000001183 hydrocarbyl group Chemical group 0.000 claims abstract 2
- -1 hept-3-yl Chemical group 0.000 claims description 130
- 150000001875 compounds Chemical class 0.000 claims description 31
- JUJWROOIHBZHMG-UHFFFAOYSA-N pyridine Substances C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 29
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 26
- 125000004485 2-pyrrolidinyl group Chemical group [H]N1C([H])([H])C([H])([H])C([H])([H])C1([H])* 0.000 claims description 24
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 22
- 235000019256 formaldehyde Nutrition 0.000 claims description 22
- 125000004214 1-pyrrolidinyl group Chemical group [H]C1([H])N(*)C([H])([H])C([H])([H])C1([H])[H] 0.000 claims description 14
- HYSNXVPAKDTRDH-UHFFFAOYSA-N 2-pyrrolidin-2-yl-1,3,4-oxadiazole Chemical class C1CCNC1C1=NN=CO1 HYSNXVPAKDTRDH-UHFFFAOYSA-N 0.000 claims description 13
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims description 12
- 125000004207 3-methoxyphenyl group Chemical group [H]C1=C([H])C(*)=C([H])C(OC([H])([H])[H])=C1[H] 0.000 claims description 10
- 125000000008 (C1-C10) alkyl group Chemical group 0.000 claims description 8
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 8
- 125000003854 p-chlorophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C([H])=C1Cl 0.000 claims description 8
- 101100295741 Gallus gallus COR4 gene Proteins 0.000 claims description 6
- 125000004432 carbon atom Chemical group C* 0.000 claims description 6
- 238000006467 substitution reaction Methods 0.000 claims description 6
- 150000001733 carboxylic acid esters Chemical group 0.000 claims description 5
- 125000001544 thienyl group Chemical group 0.000 claims description 5
- AWJUIBRHMBBTKR-UHFFFAOYSA-N isoquinoline Chemical compound C1=NC=CC2=CC=CC=C21 AWJUIBRHMBBTKR-UHFFFAOYSA-N 0.000 claims description 4
- 125000004076 pyridyl group Chemical group 0.000 claims description 4
- SLRWDRBKHCMLHT-UHFFFAOYSA-N (2-chloropyridin-3-yl)-[2-(5-pyridin-4-yl-1,3,4-oxadiazol-2-yl)pyrrolidin-1-yl]methanone Chemical compound ClC1=NC=CC=C1C(=O)N1C(C=2OC(=NN=2)C=2C=CN=CC=2)CCC1 SLRWDRBKHCMLHT-UHFFFAOYSA-N 0.000 claims description 3
- SLLFVLKNXABYGI-UHFFFAOYSA-N 1,2,3-benzoxadiazole Chemical compound C1=CC=C2ON=NC2=C1 SLLFVLKNXABYGI-UHFFFAOYSA-N 0.000 claims description 3
- IUUIQDHPEYVZSO-UHFFFAOYSA-N 2-(3,4-dimethoxyphenyl)-1-[2-(5-pyridin-4-yl-1,3,4-oxadiazol-2-yl)pyrrolidin-1-yl]ethanone Chemical compound C1=C(OC)C(OC)=CC=C1CC(=O)N1C(C=2OC(=NN=2)C=2C=CN=CC=2)CCC1 IUUIQDHPEYVZSO-UHFFFAOYSA-N 0.000 claims description 3
- OOVHSRTZJYLOER-UHFFFAOYSA-N 2-(4-chlorophenoxy)-1-[2-(5-pyridin-4-yl-1,3,4-oxadiazol-2-yl)pyrrolidin-1-yl]ethanone Chemical compound C1=CC(Cl)=CC=C1OCC(=O)N1C(C=2OC(=NN=2)C=2C=CN=CC=2)CCC1 OOVHSRTZJYLOER-UHFFFAOYSA-N 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 125000004369 butenyl group Chemical group C(=CCC)* 0.000 claims description 3
- DSSYKIVIOFKYAU-UHFFFAOYSA-N camphor Chemical compound C1CC2(C)C(=O)CC1C2(C)C DSSYKIVIOFKYAU-UHFFFAOYSA-N 0.000 claims description 3
- 125000001995 cyclobutyl group Chemical group [H]C1([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 claims description 3
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 claims description 3
- 125000001559 cyclopropyl group Chemical group [H]C1([H])C([H])([H])C1([H])* 0.000 claims description 3
- 125000005805 dimethoxy phenyl group Chemical group 0.000 claims description 3
- 125000002541 furyl group Chemical group 0.000 claims description 3
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 claims description 3
- 125000001624 naphthyl group Chemical group 0.000 claims description 3
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- FXHHDMQUIQFVQZ-UHFFFAOYSA-N (2,4-dimethoxyphenyl)-[2-(5-pyridin-4-yl-1,3,4-oxadiazol-2-yl)pyrrolidin-1-yl]methanone Chemical compound COC1=CC(OC)=CC=C1C(=O)N1C(C=2OC(=NN=2)C=2C=CN=CC=2)CCC1 FXHHDMQUIQFVQZ-UHFFFAOYSA-N 0.000 claims description 2
- RTGZEAOBKVKXLM-UHFFFAOYSA-N (4-chlorophenyl)-[2-[5-(4-phenylphenyl)-1,3,4-oxadiazol-2-yl]pyrrolidin-1-yl]methanone Chemical compound C1=CC(Cl)=CC=C1C(=O)N1C(C=2OC(=NN=2)C=2C=CC(=CC=2)C=2C=CC=CC=2)CCC1 RTGZEAOBKVKXLM-UHFFFAOYSA-N 0.000 claims description 2
- AIHSPTIYEYXVOJ-UHFFFAOYSA-N 2-(2-fluorophenyl)-5-[1-[(2,4,6-trimethylphenyl)methylsulfonyl]pyrrolidin-2-yl]-1,3,4-oxadiazole Chemical compound CC1=CC(C)=CC(C)=C1CS(=O)(=O)N1C(C=2OC(=NN=2)C=2C(=CC=CC=2)F)CCC1 AIHSPTIYEYXVOJ-UHFFFAOYSA-N 0.000 claims description 2
- DVTYJMQWZHKOTG-UHFFFAOYSA-N 2-(Trifluoroacetyl)-1,2,3,4-tetrahydroisoquinoline Chemical compound C1=CC=C2CN(C(=O)C(F)(F)F)CCC2=C1 DVTYJMQWZHKOTG-UHFFFAOYSA-N 0.000 claims description 2
- 125000001847 2-phenylcyclopropyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C1([H])C([H])([H])C1([H])* 0.000 claims description 2
- 125000003762 3,4-dimethoxyphenyl group Chemical group [H]C1=C([H])C(OC([H])([H])[H])=C(OC([H])([H])[H])C([H])=C1* 0.000 claims description 2
- 125000003349 3-pyridyl group Chemical group N1=C([H])C([*])=C([H])C([H])=C1[H] 0.000 claims description 2
- 125000004800 4-bromophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C([H])=C1Br 0.000 claims description 2
- 125000004176 4-fluorobenzyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1F)C([H])([H])* 0.000 claims description 2
- 125000000339 4-pyridyl group Chemical group N1=C([H])C([H])=C([*])C([H])=C1[H] 0.000 claims description 2
- JCXJVPUVTGWSNB-UHFFFAOYSA-N Nitrogen dioxide Chemical compound O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 claims description 2
- WTKZEGDFNFYCGP-UHFFFAOYSA-N Pyrazole Chemical compound C=1C=NNC=1 WTKZEGDFNFYCGP-UHFFFAOYSA-N 0.000 claims description 2
- 101100054666 Streptomyces halstedii sch3 gene Proteins 0.000 claims description 2
- BZGOHXPVKPNPHQ-UHFFFAOYSA-N [3-(dimethylamino)phenyl]-[2-(5-pyridin-3-yl-1,3,4-oxadiazol-2-yl)pyrrolidin-1-yl]methanone Chemical compound CN(C)C1=CC=CC(C(=O)N2C(CCC2)C=2OC(=NN=2)C=2C=NC=CC=2)=C1 BZGOHXPVKPNPHQ-UHFFFAOYSA-N 0.000 claims description 2
- AXLOCHLTNQDFFS-BESJYZOMSA-N azastene Chemical compound C([C@H]1[C@@H]2CC[C@@]([C@]2(CC[C@@H]1[C@@]1(C)C2)C)(O)C)C=C1C(C)(C)C1=C2C=NO1 AXLOCHLTNQDFFS-BESJYZOMSA-N 0.000 claims description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- 125000003538 pentan-3-yl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])C([H])([H])[H] 0.000 claims description 2
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 claims description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- VLLMWSRANPNYQX-UHFFFAOYSA-N thiadiazole Chemical compound C1=CSN=N1.C1=CSN=N1 VLLMWSRANPNYQX-UHFFFAOYSA-N 0.000 claims description 2
- 150000003852 triazoles Chemical class 0.000 claims description 2
- DSSYKIVIOFKYAU-XVKPBYJWSA-N (1s,4r)-4,7,7-trimethylbicyclo[2.2.1]heptan-3-one Chemical compound C1C[C@@]2(C)C(=O)C[C@H]1C2(C)C DSSYKIVIOFKYAU-XVKPBYJWSA-N 0.000 claims 1
- 125000004215 2,4-difluorophenyl group Chemical group [H]C1=C([H])C(*)=C(F)C([H])=C1F 0.000 claims 1
- 125000004172 4-methoxyphenyl group Chemical group [H]C1=C([H])C(OC([H])([H])[H])=C([H])C([H])=C1* 0.000 claims 1
- 125000004863 4-trifluoromethoxyphenyl group Chemical group [H]C1=C([H])C(OC(F)(F)F)=C([H])C([H])=C1* 0.000 claims 1
- 125000004494 ethyl ester group Chemical group 0.000 claims 1
- 125000001207 fluorophenyl group Chemical group 0.000 claims 1
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 claims 1
- 125000004429 atom Chemical group 0.000 abstract description 8
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Natural products CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 18
- 239000003814 drug Substances 0.000 description 18
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 13
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 12
- 239000000126 substance Substances 0.000 description 12
- 208000002193 Pain Diseases 0.000 description 11
- 239000000243 solution Substances 0.000 description 11
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 9
- 229940079593 drug Drugs 0.000 description 9
- 230000005764 inhibitory process Effects 0.000 description 9
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- 125000004198 2-fluorophenyl group Chemical group [H]C1=C([H])C(F)=C(*)C([H])=C1[H] 0.000 description 8
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- RWRDLPDLKQPQOW-UHFFFAOYSA-N Pyrrolidine Chemical compound C1CCNC1 RWRDLPDLKQPQOW-UHFFFAOYSA-N 0.000 description 6
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Classifications
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- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
- C07D413/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings
- C07D413/04—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings directly linked by a ring-member-to-ring-member bond
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- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
- A61P1/08—Drugs for disorders of the alimentary tract or the digestive system for nausea, cinetosis or vertigo; Antiemetics
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- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
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- A61P17/04—Antipruritics
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- A—HUMAN NECESSITIES
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- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
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- A—HUMAN NECESSITIES
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- A—HUMAN NECESSITIES
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- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
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- A—HUMAN NECESSITIES
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- A—HUMAN NECESSITIES
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- A—HUMAN NECESSITIES
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- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P3/00—Drugs for disorders of the metabolism
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
- C07D413/14—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing three or more hetero rings
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Animal Behavior & Ethology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Public Health (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Neurosurgery (AREA)
- Neurology (AREA)
- Biomedical Technology (AREA)
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- Addiction (AREA)
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- Diabetes (AREA)
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- Hospice & Palliative Care (AREA)
- Otolaryngology (AREA)
- Dermatology (AREA)
- Plural Heterocyclic Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
Abstract
Derivados de 2-pirrolidin-2-il-[1,3,4]-oxadiazol sustituidos de fórmula general I en la que R1 significa arilo o heteroarilo; R2 significa H, SO2R 3 o COR 4 ; R 3 y R 4 significan, independientemente entre sí, alquilo(C1-10), cicloalquilo(C3-10), alquil(C1-6)-cicloalquilo(C3-10), arilo, alquil(C1-6)arilo, heterociclilo, grupos éster de ácidos carboxílicos de 3-10 átomos de C, dimetilamina o NR 5 R 6 ; R 5 y R 6 significan, independientemente entre sí, H, bencilo o fenilo, estando el bencilo o fenilo en cada caso sustituido de forma simple o múltiple, igual o diferente, con F, Cl, O-alquilo, CN, CF3 u OCF3; incluyendo el concepto "alquilo" grupos hidrocarburo acíclicos, saturados o insaturados, ramificados o de cadena lineal, sustituidos de forma simple o múltiple o no sustituidos, estando también incluidos grupos cuya cadena de C está interrumpida por uno o más de los heteroátomos N, O o S, e incluyendo el concepto "cicloalquilo" grupos hidrocarburo cíclicos que pueden ser saturados o insaturados, estar sustituidos de forma simple o múltiple o no sustituidos, o en caso dado benzocondensados; entendiéndose por el concepto "sustituido" en relación con "alquilo" y "cicloalquilo" la sustitución simple o múltiple de uno o más átomos de hidrógeno por F, Cl, Br, I, -CN, NH2, NH-alquilo, NH-arilo, NH-alquilarilo, NH-heterociclilo, N(alquilo)2, N(alquil-arilo)2, N-alquil-N-arilo, NO2, OH, grupo ceto, O-alquilo, O-arilo, O-alquil-arilo, C(=O)alquilo(C1-6), C(=O)arilo, C(=O)alquil(C1-6)arilo, C(=O)- heterocicilo, CO2H, CO2-alquilo, CO2-alquilarilo, C(=O)NH2, C(=O)NH- alquilo, C(=O)NH-arilo, C(=O)NH-heterociclilo, C(=O)N(alquilo)2, C(=O)N(alquilarilo)2, cicloalquilo, arilo o heterociclilo.
Description
5 La presente invención se refiere a derivados de 2-pirrolidin-2-il-[1,3,4]oxadiazol sustituidos, a procedimientos para su preparación, a medicamentos que contienen estos compuestos y a la utilización de estas sustancias para la producción de medicamentos, preferentemente para el tratamiento de la depresión, y también a procedimientos para el tratamiento de la depresión.
10 La depresión es un trastorno de la afectividad que tiene en primer plano un síndrome depresivo, relacionándose el concepto “depresivo” con la desazón
o indicando tristeza. Los antidepresivos utilizados para la terapia también son importantes adyuvantes para la terapia del dolor (van Schayck y col., MMP 1998, año 21, número 10, 304-313; Jung y col., J. Gen. Intern. Med. 1997, 12/6, 15 384-389; Onghena y Van Houdenhove, Pain 1992, 49, 205-219; Feuerstein, Der Schmerz 1997, 11, 213-226; Rowbotham, The Pain Medicine Journal Club 1997, 3/3, 119-122), en particular en caso de estados de dolor crónico, ya que la carga permanente del dolor puede conducir a un estado de ánimo depresivo del paciente. Esto es especialmente frecuente en el caso de los pacientes con 20 dolores por cáncer (Berard, Int. Med. J. 1996, 3/4, 257-259). Dado que hasta la fecha no existe ningún analgésico con un componente activo antidepresivo clínicamente relevante, los antidepresivos se han de añadir como medicación adicional a la administración de analgésicos. Teniendo en cuenta que los pacientes con dolor crónico con frecuencia requieren numerosos medicamentos
25 diferentes, la administración adicional del antidepresivo constituye otra carga más para el organismo. Por este motivo y para aumentar la aceptación sería especialmente ventajoso disponer de una sustancia de efectos analgésicos con un componente activo antidepresivo.
La base del efecto antidepresivo consiste en la inhibición de la 30 reabsorción de la serotonina.
La literatura da a conocer diferentes derivados de 2-pirrolidin-2-il-[1,3,4]oxadiazol sustituidos. Todos ellos tienen en común que son utilizados para la terapia de enfermedades neuronales.
La síntesis de derivados de 2-pirrolidin-2-il-[1,3,4]-oxadiazol sustituidos ya se ha descrito en Borg y col. (J. Org. Chem. 1995, 60, 3112-3120), utilizando aminoácidos naturales como material de partida y llevando a cabo una deshidrogenación de diacilhidrazinas, y por Brain y col. (Synlett 2001, nº 3, 382
5 384), que llevan a cabo la ciclodeshidrogenación de las 1,2-diacilhidrazinas en microondas con un agente de deshidrogenación soportado por poliestireno. Estas síntesis son síntesis en fase sólida.
En el documento WO 01/04116 se describe otra posibilidad para la síntesis de derivados de pirrolidina o piperidina para el tratamiento y la 10 prevención de enfermedades neuronales.
El documento JP 2001247569 también describe la preparación de derivados de pirrolidina o piperidina y su utilización para la profilaxis y/o el tratamiento de enfermedades que van acompañadas de lesiones de los nervios
o degeneraciones neuronales.
15 El documento US 3912747 da a conocer derivados de 2-hidroximetil1,3,4-oxiadiazol que son adecuados, entre otras cosas, para el tratamiento del dolor y la depresión.
El objetivo de la invención consistía en proponer una nueva clase estructural de sustancias con efecto analgésico que además fueran adecuadas 20 en particular para el tratamiento de la depresión y/o como ansiolíticos.
Sorprendentemente se ha comprobado que los derivados de 2-pirrolidin2-il-[1,3,4]-oxadiazol sustituidos de fórmula general I presentan un marcado efecto antidepresivo y también analgésico.
Por consiguiente, un objeto de la invención consiste en derivados de 225 pirrolidin-2-il-[1,3,4]-oxadiazol sustituidos de fórmula general I
en la que
R1 significa arilo o heteroarilo;
R2 significa H, SO2R3 o COR4;
R3 y R4 significan, independientemente entre sí, alquilo(C1-10), cicloalquilo(C3-10), alquil(C1-6)-cicloalquilo(C3-10), arilo, alquil(C1-6)arilo, heterociclilo, grupos éster de ácidos carboxílicos de 3-10 átomos de C, dimetilamina o NR5R6;
R5 y R6 significan, independientemente entre sí, H, bencilo o fenilo, estando el bencilo o fenilo en cada caso sustituido de forma simple o múltiple, igual o diferente, con F, Cl, O-alquilo, CN, CF3 u OCF3;
incluyendo el concepto “alquilo” grupos hidrocarburo acíclicos, saturados
- o insaturados, ramificados o de cadena lineal, sustituidos de forma simple
- o múltiple o no sustituidos, estando también incluidos grupos cuya cadena de C está interrumpida por uno o más de los heteroátomos N, O o S, e incluyendo el concepto “cicloalquilo” grupos hidrocarburo cíclicos que pueden ser saturados o insaturados, estar sustituidos de forma simple o múltiple o no sustituidos, o en caso dado benzocondensados;
entendiéndose por el concepto “sustituido” en relación con “alquilo” y “cicloalquilo” la sustitución simple o múltiple de uno o más átomos de hidrógeno por F, Cl, Br, I, -CN, NH2, NH-alquilo, NH-arilo, NH-alquil-arilo, NH-heterociclilo, N(alquilo)2, N(alquil-arilo)2, N-alquil-N-arilo, NO2, OH, grupo ceto, O-alquilo, O-arilo, O-alquil-arilo, C(=O)alquilo(C1-6), C(=O)arilo, C(=O)alquil(C1-6)arilo, C(=O)-heterocicilo, CO2H, CO2-alquilo, CO2-alquilarilo, C(=O)NH2, C(=O)NH-alquilo, C(=O)NH-arilo, C(=O)NHheterociclilo, C(=O)N(alquilo)2, C(=O)N(alquilarilo)2, cicloalquilo, arilo o heterociclilo.
- Preferentemente, en los compuestos de fórmula I
- R1
- significa arilo o heteroarilo; siendo arilo igual a sustituido con F, Cl, O-alquilo o fenilo, y sienpiridinilo o tienilo; fenilo do het no sustituido eroarilo igual o a
- R2
- significa H, SO2R3 o COR4;
R3 y R4 significan, independientemente entre sí, alquilo(C1-10), cicloalquilo(C3-10), alquil(C1-6)-cicloalquilo(C3-10), arilo, alquil(C1-6)arilo, heterociclilo, grupos éster de ácidos carboxílicos de 3-10 átomos de C, dimetilamina o NR5R6;
alquilo(C1-10) representa metilo, propilo, butilo, butenilo, isobutilo, pentilo, pent-3ilo, hept-3-ilo, hept-4-ilo, 2,2-dimetilpropilo, CH2OCH3 o CH2O(CH2)2OCH3;
cicloalquilo(C3-10) representa ciclopropilo, ciclobutilo, ciclopentilo, adamantan-1ilo o 2-fenilciclopropilo;
alquil(C1-6)-cicloalquilo(C3-10) representa CH2-ciclopentilo, (CH2)2-ciclopentilo o 7,7-dimetil-1-metil-biciclo[2.2.1]heptan-2-ona;
5 arilo representa fenilo, bencilo o naftilo no sustituido o sustituido de forma simple o múltiple, igual o diferente, con fenilo, NO2, alquilo(C1-6), cuya cadena de C está interrumpida por uno o más de los heteroátomos N, O o S, preferentemente por O, O-alquilo, CO2-alquilo, C(=O)alquilo(C1-6), CH2OC(=O)C6H5, F, Cl, Br, N(CH3)2, OCF3, CF3, SCHF2, SCF3 o
10 (C=O)CH3;
alquil(C1-6)arilo representa 3,4-dimetoxifenilo-CH2, 4-clorofenoxi-CH2, fenil-CH=CH, bencil-OCH2, fenil-(CH2)2, 2-bromofenil-CH2, 1-fenilpropilo, 2clorofenil-CH=CH, 3-trifluorometil-fenil-CH=CH, fenoxi-CH2, fenoxi-(CH2)3
o fenoxi-CH(CH3);
15 heterociclilo representa piridinilo, isoxazol, tienilo, furanilo, triazol, benzooxadiazol, tiadiazol, pirazol o isoquinolina, no sustituido o sustituido de forma simple o múltiple, igual o diferente, con Cl, alquilo(C1-6), fenilo, que a su vez no está sustituido o está sustituido de forma simple o múltiple, igual o diferente, con Cl o alquilo(C1-6), CF3, C(=O)CF3 o SCH3;
20 los grupos éster carboxílicos de 3-10 átomos de C representan CH3OC(=O)CH2 CH3OC(=O)(CH2)3 CH3CH2OC(=O)CH2
25 CH3CH2OC(=O)(CH2)2 CH3C(=O)OCH2 CH3C(=O)OC(CH3)2 o CH3C(=O)OCH(C6H5) y
R5 y R6 significan, independientemente entre sí, H, bencilo o fenilo, estando el bencilo o fenilo sustituido en cada caso de forma simple o múltiple, igual o diferente, con F, Cl, O-alquilo, CN, CF3 u OCF3.
- Son especialmente preferentes los compuestos de fórmula I, en los que
- R1
- significa fenilo, bisfenilo-4-ilo, 3-metoxifenilo, 4-clorofenilo, 2-fluorofenilo,
- piridin-3-ilo, piridin-4-ilo o tiofen-2-ilo;
- R2
- significa H, SO2R3 o COR4;
- R3
- y R4 significan, independientemente entre sí, CH3CH2OCO(CH2)2-, 2,4
- dimetoxifenilo, 2-cloropiridin-3-ilo, 2-cloropiridin-4-ilo, 7,7-dimetil-1-metil
- biciclo[2.2.1]heptan-2-ona, 3-dimetilamino-fenilo, 3,4-dimetoxifenilo, 2,5
- dimetoxifenilo, 4-clorofenilo, 4,5-diclorotiofen-2-ilo, 2,4,6-trimetilfenilo, 4
- clorofenoximetilo, C6H5CH=CH-, 5-metil-2-fenil-2H-[1,2,3]triazol-4-ilo, 2,4
- difluorofenilo,
- 2,6-difluorofenilo, 4-bromofenilo, 4-etoxifenilo, 4
- trifluorometoxifenilo, 2,5-bis(trifluorometil)fenilo, 1-fenil-5-propil-1H-pirazol
- 4-ilo,
- 3-metoxifenilo, 2-metil-6-trifluorometil-piridin-3-ilo, 4-trifluorometil
- sulfanil-fenilo,
- 2,2,2-trifluor-1-(3,4-dihidro-1H-isoquinolin-2-il)etanona o
- NR5R6;
- R5
- y R6 significan, independientemente entre sí, H o 3-metoxifenilo, 4
- metoxifenilo,
- 4-etoxifenilo, 2,5-dimetoxifenilo, 2,5-diclorofenilo, 2,5
- difluorofenilo,
- 4-fluorobencilo, 4-cloro-3-trifluorometil-fenilo, 4
- trifluorometoxi-fenilo o 3-cianofenilo.
- Los siguientes derivados de 2-pirrolidin-2-il-[1,3,4]-oxadiazol sustituidos
son particularmente preferentes:
etil éster de ácido 4-oxo-4-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)-pirrolidin-1il]butírico (2,4-dimetoxifenil)-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)-pirrolidin-1-il]metanona (2-cloropiridin-3-il)-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona 7,7-dimetil-1-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-sulfonilmetil]
biciclo[2.2.1]heptan-2-ona (3-dimetilaminofenil)-[2-(5-piridin-3-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona 2-(3,4-dimetoxifenil)-1-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]etanona [2-(5-bifenil-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-(4-clorofenil)metanona 4-{5-[1-(4,5-diclorotiofen-2-sulfonil)pirrolidin-2-il]-[1,3,4]oxadiazol-2-il}piridina 3-{5-[1-(2,5-dimetoxi-bencilsulfonil)pirrolidin-2-il]-[1,3,4]oxadiazol-2-il}piridina 2-(2-fluorofenil)-5-[1-(2,4,6-trimetil-bencilsulfonil)pirrolidin-2-il]-[1,3,4]oxadiazol
5 2-(4-clorofenoxi)-1-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]etanona
3-fenil-1-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]propenona
(5-metil-2-fenil-2H-[1,2,3]triazol-4-il)-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2
il)pirrolidin-1-il]metanona 3-{5-[1-(2,4-difluoro-bencilsulfonil)pirrolidin-2-il]-[1,3,4]oxadiazol-2-il}piridina
10 (4-bromofenil)-{2-[5-(3-metoxifenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}metanona (2-cloropiridin-4-il)-{2-[5-(3-metoxifenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1il}metanona (2,6-difluorofenil)-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona (4-etoxifenil)-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
15 3-{5-[1-(4-trifluorometoxi-bencilsulfonil)pirrolidin-2-il]-[1,3,4]oxadiazol-2-il}piridina
(2,5-bis-trifluorometil-fenil)-{2-[5-(4-clorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1il}metanona (2,5-bis-trifluorometil-fenil)-[2-(5-tiofen-2-il-[1,3,4]oxadiazol-2-il)pirrolidin-1
il]metanona
20 (1-fenil-5-propil-1H-pirazol-4-il)-[2-(5-piridin-3-il-[1,3,4]oxadiazol-2-il)pirrolidin-1il]metanona (2,3-difluorofenil)-{2-[5-(3-metoxifenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1
il}metanona (2-metil-6-trifluorometil-piridin-3-il)-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1
25 il]metanona [2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-(4-trifluorometilsulfanilfenil)metanona 2,2,2-trifluor-1-{7-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-sulfonil]-3,4
dihidro-1H-isoquinolin-2-il}etanona
1-{2-[5-(3-clorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-3-ciclopentil-1-propanona
1-{2-[5-(3-clorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-1-pentanona
5 En el sentido de esta invención, los conceptos “alquilo”, “alquilo(C1-10)” y “alquilo(C1-6)” incluyen grupos hidrocarburo acíclicos saturados o insaturados, que pueden ser de cadena ramificada o lineal y pueden no estar sustituidos o estar sustituidos de forma simple o múltiple, igual o diferente, con (como en el caso del alquilo(C1-10)) 1 a 10 (es decir, 1, 2, 3, 4, 5, 6, 7, 8, 9 ó 10) o (como en
10 el caso del alquilo(C1-6)) 1 a 6 (1, 2, 3, 4, 5 ó 6), es decir, alcanilo(C1-10), alcanilo(C1-6), alquenilo(C2-10), alquenilo(C2-6) y alquinilo(C2-10), alquinilo(C2-6). Los “alquenilos” presentan al menos un enlace doble C-C y los “alquinilos” al menos un enlace triple C-C. Ventajosamente, el alquilo se selecciona de entre el grupo que incluye metilo, etilo, n-propilo, 2-propilo, n-butilo, isobutilo, sec-butilo,
15 terc-butilo, n-pentilo, isopentilo, neopentilo, n-hexilo, 2-hexilo, n-heptilo, n-octilo, n-nonilo, n-decilo; etenilo (vinilo), etinilo, propenilo (-CH2CH=CH2, -CH=CH-CH3, -C(=CH2)-CH3), propinilo (-CH2-C≡CH, -C≡C-CH3), butenilo, butinilo, pentenilo, pentinilo, hexenilo, hexinilo, octenilo y octinilo. En el sentido de esta invención, por el concepto “alquilo” también se entienden grupos cuya cadena de átomos
20 de C en caso dado está interrumpida por uno o más de los heteroátomos N, O o S, preferentemente por O.
En el sentido de esta invención, “cicloalquilo(C3-10)” (o “cicloalquilo”) significa grupos hidrocarburo cíclicos saturados o insaturados de 3, 4, 5, 6, 7, 8, 9 ó 10 átomos de C, pudiendo cada uno de los grupos no estar sustituido o estar
25 sustituido de forma simple o múltiple, igual o diferente, y en caso dado benzocondensado. También se puede tratar de un sistema de anillo bicíclico, tricíclico o policíclico. Por ejemplo, cicloalquilo representa ciclopropilo, ciclobutilo, ciclopentilo, ciclohexilo, cicloheptanol y ciclooctanilo, y también adamantilo y biciclo[2.2.1]heptilo.
30 Para los fines de la presente invención, por la expresión “arilo” se ha de entender un grupo seleccionado de entre el grupo que incluye fenilo, naftilo, fenantrenilo, antracenilo y bifenilo, no sustituido o sustituido de forma simple o múltiple, igual o diferente. Preferentemente, el arilo es un fenilo, 1-naftilo o 2naftilo no sustituido o sustituido de forma simple o múltiple, igual o diferente.
La expresión “heterociclilo” representa un grupo orgánico monocíclico o policíclico en el que al menos un ciclo incluye 1 heteroátomo o 2, 3, 4 ó 5 heteroátomos, iguales o diferentes, seleccionados de entre el grupo que incluye N, O y S, siendo el grupo saturado o insaturado y estando no sustituido o sustituido de forma simple o múltiple, igual o diferente. Grupos heterociclilo en el sentido de esta invención son, por ejemplo, grupos orgánicos monocíclicos de cinco, seis o siete miembros con 1 heteroátomo o 2, 3, 4 ó 5 heteroátomos iguales o diferentes consistentes en nitrógeno, oxígeno y/o azufre, y sus análogos benzocondensados. Un subgrupo de los grupos heterociclilo está formado por los grupos “heteroarilo”, que consisten en heterociclos en los que al menos un ciclo, que contiene el o los heteroátomos, es heteroaromático. Cada grupo heteroarilo puede no estar sustituido o estar sustituido de forma simple o múltiple, igual o diferente. Grupos heterociclilo en el sentido de esta invención son, por ejemplo, pirrolidinilo, piperidinilo y morfolinilo. Grupos heteroarilo son, por ejemplo, pirrolilo, furanilo, tienilo, tiadiazolilo, triazolilo, isoxazolilo, isoquinolinilo, pirazolilo, imidazolilo, piridazinilo, pirimidinilo, pirazinilo, piridinilo y oxadiazolilo, y también sus análogos benzocondensados (por ejemplo benzooxadiazolilo). Cada uno de estos grupos puede estar o no sustituido.
Para los fines de la presente invención, las expresiones “alquil(C1-6)cicloalquilo(C3-10)” y “alquil(C1-6)arilo” significan que el grupo cicloalquilo o arilo está unido al compuesto sustituido por él a través de un grupo alquilo(C1-6).
En el sentido de esta invención, por el concepto “sustituido” en relación con “alquilo”, “alcanilo”, “alquenilo”, “alquinilo” y “cicloalquilo” se entiende la sustitución simple o múltiple de uno o más átomos de hidrógeno, por ejemplo por F, Cl, Br, I, -CN, NH2, NH-alquilo, NH-arilo, NH-alquilarilo, NH-heterociclilo, N(alquilo)2, N(alquilarilo)2, N-alquil-N-arilo, NO2, OH, grupo ceto, O-alquilo, Oarilo, O-alquilarilo, C(=O)alquilo(C1-6), C(=O)arilo, C(=O)alquil(C1-6)arilo, C(=O)heterociclilo, CO2H, CO2-alquilo, CO2-alquilarilo, C(=O)NH2, C(=O)NH-alquilo, C(=O)NH-arilo, C(=O)NH-heterociclilo, C(=O)N(alquilo)2, C(=O)N(alquilarilo)2, cicloalquilo, arilo o heterociclilo, teniendo lugar la sustitución múltiple, por ejemplo doble o triple, en átomos iguales o diferentes. La sustitución múltiple puede tener lugar con sustituyentes iguales o diferentes. También es posible la sustitución con una sulfonamida.
En el sentido de esta invención, por el concepto “sustituido” en relación con “arilo”, “heterociclilo” y “heteroarilo” se entiende la sustitución simple o múltiple, por ejemplo doble, triple o cuádruple, de uno o más átomos de
hidrógeno del sistema de anillo por un sustituyente adecuado. Siempre que el significado de estos sustituyentes adecuados en relación con “arilo”, “heterociclilo” o “heteroarilo” no esté definido en otro lugar de la descripción o en las reivindicaciones, algunos sustituyentes adecuados son F, Cl, Br, I, -CN, NH2, 5 NH-alquilo, NH-arilo, NH-alquilarilo, NH-heterociclilo, N(alquilo)2, N(alquilarilo)2, NO2, SH, S-alquilo, OH, O-alquilo, O-cicloalquilo, O-arilo, O-alquilarilo, Oheterociclilo, CHO, C(=O)alquilo(C1-6), C(=O)CF3, C(=O)arilo, C(=O)-alquil(C16)arilo, CO2H, CO2-alquilo, -alquil-CO2-arilo, C(=O)NH2, C(=O)NH-alquilo, C(=O)NH-arilo, C(=O)NH-heterociclilo, C(=O)N(alquilo)2, SO2NH2, SO3H, CF3, 10 CHF2, CH2F, OCF3, OCHF2, OCH2F, SCF3, SCHF2, alquilo, cicloalquilo, arilo y/o heterociclilo; en un mismo átomo o en caso dado en átomos diferentes (pudiendo un sustituyente estar sustituido a su vez en caso dado). La sustitución múltiple tiene lugar con el mismo sustituyente o con sustituyentes diferentes. Los sustituyentes especialmente preferentes para arilo y heterociclilo son alquilo(C1
15 6), F, Cl, Br, I, CF3, Oalquilo, OCF3, fenilo, CN y/o NO2.
Para los fines de la presente invención, “benzocondensado” significa que un anillo de benceno está unido por condensación en otro ciclo.
Otro objeto de la invención consiste en un procedimiento para la preparación de derivados de 2-pirrolidin-2-il-[1,3,4]-oxadiazol sustituidos de 20 fórmula general I. Las sustancias según la invención se preparan de acuerdo
con el siguiente esquema de síntesis:
Para preparar los derivados de 2-pirrolidin-2-il-[1,3,4]-oxadiazol sustituidos según la invención se somete a reacción boc-prolina con 25 cloroformiato de etilo e hidrazina en un disolvente adecuado, por ejemplo THF (tetrahidrofurano). La hidrazida resultante se somete a reacción con un cloruro
de ácido en un disolvente adecuado, por ejemplo THF, para obtener una diacilhidrazida. Para la ciclación, la diacilhidrazida se combina con un ácido y un reactivo deshidratante, por ejemplo P2O5, CH3SO3H, piridina y/o SOCl2. Después de la ciclación, el grupo protector se disocia y el producto se somete a reacción con un cloruro de ácido o un isocianato, con lo que se obtienen los compuestos de fórmula general I según la invención.
Los derivados de 2-pirrolidin-2-il-[1,3,4]-oxadiazol sustituidos de fórmula general I según la invención son toxicológicamente inocuos y, en consecuencia, son adecuados como principios activos farmacéuticos en medicamentos.
Por consiguiente, otro objeto de la presente invención consiste en medicamentos que contienen al menos un derivado de 2-pirrolidin-2-il-[1,3,4]oxadiazol sustituido de fórmula general I según la invención y en caso dado también sustancias auxiliares fisiológicamente tolerables.
Preferentemente, los medicamentos según la invención son adecuados para la lucha contra el dolor y para el tratamiento o la profilaxis de la depresión, incontinencia urinaria, diarrea, prurito, dependencia de alcohol, drogas y/o medicamentos, nauseas y vómitos, como ansiolítico, para aumentar la vigilancia y/o para aumentar la libido.
La utilización de al menos un derivado de 2-pirrolidin-2-il-[1,3,4]-oxadiazol sustituido de fórmula general I para la producción de un medicamento para la lucha contra el dolor y para el tratamiento o la profilaxis de la depresión, incontinencia urinaria, diarrea, prurito, dependencia de alcohol, drogas y/o medicamentos, nauseas y vómitos, como ansiolítico, para aumentar la vigilancia y/o para aumentar la libido, también es objeto de la presente invención.
Los medicamentos según la invención se pueden presentar y administrar en forma líquida, semisólida o sólida, por ejemplo en forma de soluciones para inyección, gotas, jugos, jarabes, pulverizaciones, suspensiones, pastillas, parches, cápsulas, apósitos, supositorios, pomadas, cremas, lociones, geles, emulsiones, aerosoles o en forma multiparticulada, por ejemplo en forma de pellets o granulados.
Además de al menos un derivado de 2-pirrolidin-2-il-[1,3,4]-oxadiazol sustituido de fórmula general I según la invención, los medicamentos según la invención normalmente también contienen otras sustancias auxiliares farmacéuticas fisiológicamente tolerables, seleccionadas preferentemente de entre el grupo consistente en materiales de vehículo, ingredientes de carga, disolventes, diluyentes, sustancias tensioactivas, colorantes, conservantes, agentes disgregantes, agentes de deslizamiento, lubricantes, aromas y aglutinantes.
La selección de las sustancias auxiliares fisiológicamente compatibles y de la cantidad a utilizar de las mismas depende de la forma de administración del medicamento, es decir, por vía oral, subcutánea, parenteral, intravenosa, intraperitoneal, intradérmica, intramuscular, intranasal, bucal, rectal o local, por ejemplo sobre infecciones en la piel, las mucosas y los ojos. Para la administración oral son adecuados los preparados en forma de tabletas, grageas, cápsulas, granulados, pellets, gotas, jugos y jarabes, y para la administración parenteral, tópica y por inhalación son adecuadas las soluciones, suspensiones, preparados secos de fácil reconstitución y aerosoles. Los compuestos de fórmula general I según la invención en un depósito, en forma disuelta o en un apósito, dado el caso añadiendo agentes promotores de la penetración en la piel, son preparados adecuados para la administración percutánea. Los preparados a utilizar por vía oral o percutánea también pueden liberar los compuestos de fórmula general I según la invención de forma retardada.
La producción de los medicamentos según la invención tiene lugar con ayuda de los medios, dispositivos, métodos y procedimientos usuales y conocidos por los especialistas, tal como se describen, por ejemplo, en A.R. Gennaro (Editores), Remington’s Pharmaceutical Sciences, edición 17, Mack Publishing Company, Easton, Pa. (1985), en particular volumen 8, capítulos 76 a 93. La descripción correspondiente se incorpora aquí como referencia y se considera parte de la exposición de la invención.
La cantidad del compuesto de fórmula general I según la invención correspondiente que se ha de administrar a los pacientes es variable y depende por ejemplo del peso o la edad del paciente y también del tipo de administración, la indicación y la gravedad de la enfermedad. Normalmente se administran entre 0,005 y 500 mg/kg, preferentemente entre 0,05 y 5 mg/kg de peso corporal del paciente, de al menos un derivado de 2-pirrolidin-2-il-[1,3,4]-oxadiazol sustituido de fórmula general I según la invención.
Aunque los compuestos según la invención entran dentro de la amplia fórmula general de la solicitud JP 2001247569, no están mencionados expresamente en ningún lugar dentro de ella y tampoco forman parte de los compuestos preferentes. Los compuestos descritos en dicho documento han de ser adecuados para prolongar axones y por consiguiente para el tratamiento y/o la prevención de enfermedades como trastornos nerviosos diabéticos, neuropatía, nervios cortados, enfermedades que provocan destrucción nerviosa, como ELA o esclerosis múltiple, Alzheimer, Parkinson, corea de Huntington o lesiones medulares.
En cambio, en el caso de los compuestos con efecto analgésico según la invención se ha podido demostrar un claro efecto antidepresivo.
Ejemplos
- Ejp. nº
- Compuesto según la invención
- 1
- 4-{5-[1-(4-nitro-bencilsulfonil)pirrolidin-2-il]-[1,3,4]oxadiazol-2-il}piridina
- 2
- 3-oxo-3-[2-(5-piridin-3-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]propanoato de etilo
- 3
- 4-{5-[1-(2,4,6-trimetil-bencilsulfonil)pirrolidin-2-il]-[1,3,4]oxadiazol-2il}piridina
- 4
- 4-oxo-4-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]butanoato de etilo
- 5
- (2,4-dimetoxifenil)-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1il]metanona
- 6
- (2-cloropiridin-3-il)-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1il]metanona
- 7
- 7,7-dimetil-1-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1sulfonilmetil]-biciclo[2.2.1]heptan-2-ona
- 8
- 1-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-1-butanona
- 9
- [2-(5-bifenil-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-(4-metoxifenil)metanona
- 10
- 2-[1-(3-cloro-4-fluoro-bencilsulfonil)pirrolidin-2-il]-5-tiofen-2-il[1,3,4]oxadiazol
- 11
- [3-(2,6-diclorofenil)-5-metilisoxazol-4-il]-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 12
- (3-dimetilaminofenil)-[2-(5-piridin-3-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 13
- 2-(3,4-dimetoxifenil)-1-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1il]etanona
- Ejp. nº
- Compuesto según la invención
- 14
- [2-(5-bifenil-4-il-[1,3,4]oxadiazol-2-il}pirrolidin-1-il]-(4-clorofenil)metanona
- 15
- 4-{5-[1-(4-cloro-bencilsulfonil)pirrolidin-2-il]-[1,3,4]oxadiazol-2-il}piridina
- 16
- 4-{5-[1-(4-metoxi-bencilsulfonil)pirrolidin-2-il]-[1,3,4]oxadiazol-2il}piridina
- 17
- isoxazol-5-il-[2-(5-piridin-3-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 18
- 4-{5-[1-(butano-1-sulfonil)pirrolidin-2-il]-[1,3,4]oxadiazol-2-il}piridina
- 19
- 2-(2-metoxietoxi)-1-{2-[5-(3-metoxifenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1il}etanona
- 20
- ciclobutil-[2-(5-piridin-3-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 22
- 4-{5-[1-(4,5-diclorotiofeno-2-sulfonil)pirrolidin-2-il]-[1,3,4]oxadiazol-2-il}piridina
- 23
- 1-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]etanona
- 24
- 1-{2-[5-(2-fluorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-2-metoxietanona
- 25
- (2-cloropiridin-4-il)-[2-(5-piridin-3-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 26
- [2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-(3,4,5-trimetoxifenil)metanona
- 27
- (4-bromofenil)-{2-[5-(4-clorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}metanona
- 28
- metil éster de ácido 5-{2-[5-(2-fluorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin1-il}-5-oxovaleriánico
- 29
- [2-(5-bifenil-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-[3-(2-clorofenil)-5metilisoxazol-4-il]metanona
- 30
- 3-{5-[1-(2,5-dimetoxi-bencilsulfonil)pirrolidin-2-il]-[1,3,4]oxadiazol-2-il}piridina
- 31
- (2-metilsulfanil-piridin-3-il)-[2-(5-piridin-3-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 32
- 2-fenil-1-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]etanona
- 33
- 3-oxo-3-[2-(5-tiofen-2-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]propanoato de etilo
- 34
- (3-dimetilaminofenil)-{2-[5-(3-metoxifenil)-[1,3,4]oxadiazol-2-il]pirrolidin1-il}metanona
- 35
- acetato de 2-oxo-2-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]etilo
- Ejp. nº
- Compuesto según la invención
- 36
- (4-etoxifenil)-[2-(5-piridin-3-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 37
- 2-(2,5-dimetoxifenil)-1-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1il]etanona
- 38
- 3-oxo-3-[2-(5-tiofen-2-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]propanoato de metilo
- 39
- (2-etoxifenil)-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 40
- 3-[5-(1-fenilmetanosulfonil-pirrolidin-2-il)-[1,3,4]oxadiazol-2-il]piridina
- 41
- dimetilamida de ácido 2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1sulfónico
- 43
- {2-[5-(3-metoxifenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-(4trifluorometoxifenil)metanona
- 44
- [2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-tiofen-2-il-metanona
- 45
- [2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-o-tolil-metanona
- 46
- 1-{2-[5-(4-clorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-2-metoxietanona
- 47
- metil éster de ácido 5-{2-[5-(3-metoxifenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-5-oxovaleriánico
- 48
- 3-{2-[5-(3-metoxifenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-3oxopropanoato de metilo
- 49
- bifenil-4-il-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-metanona
- 50
- (2-clorofenil)-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 51
- (2-cloropiridin-3-il)-[2-(5-tiofen-2-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 52
- 1-[2-(5-tiofen-2-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-1-butanona
- 53
- acetato de 1,1-dimetil-2-oxo-2-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin1-il]etilo
- 54
- [2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-p-tolil-metanona
- 55
- (2,3-dimetilfenil)-[2-(5-piridin-3-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 56
- 2-ciclopentil-1-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]etanona
- 57
- 3-{5-[1-(3-cloro-bencilsulfonil)pirrolidin-2-il]-[1,3,4]oxadiazol-2-il}piridina
- 58
- 1-{2-[5-(3-metoxifenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-1-pentanona
- Ejp. nº
- Compuesto según la invención
- 60
- adamantan-1-il-[2-(5-piridin-3-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 61
- 2-(2-fluorofenil)-5-[1-(2,4,6-trimetil-bencilsulfonil)pirrolidin-2-il][1,3,4]oxadiazol
- 62
- [2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-(2-trifluorometil-fenil)metanona
- 63
- 2-[1-(3,4-dimetoxi-bencilsulfonil)pirrolidin-2-il]-5-(2-fluorofenil)[1,3,4]oxadiazol
- 64
- acetato de 2-oxo-1-fenil-2-[2-(5-piridin-3-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]etilo
- 65
- furan-2-il-{2-[5-(3-metoxifenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}metanona
- 66
- (4-bromofenil)-[2-(5-piridin-3-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 67
- 2-(4-clorofenoxi)-1-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]etanona
- 68
- 4-[5-(1-bencilsulfonil-pirrolidin-2-il)-[1,3,4]oxadiazol-2-il]piridina
- 69
- furan-2-il-[2-(5-tiofen-2-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-metanona
- 70
- 1-{2-[5-(2-fluorofenil)-[1,3,4]oxadiazol-2-il]-pirrolidin-1-il}-pent-4-en-1ona
- 71
- 3-{5-[1-(2-cloro-bencilsulfonil)pirrolidin-2-il]-[1,3,4]oxadiazol-2-il}piridina
- 72
- 4-{5-[1-(5-clorotiofen-2-sulfonil)pirrolidin-2-il]-[1,3,4]oxadiazol-2il}piridina
- 73
- [3-(2-clorofenil)-5-metilisoxazol-4-il]-[2-(5-piridin-3-il-[1,3,4]oxadiazol-2il)pirrolidin-1-il]-metanona
- 74
- (5-metilisoxazol-3-il)-[2-(5-piridin-3-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 75
- {2-[5-(2-fluorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-pentafluorofenilmetanona
- 76
- etil éster de ácido 4-oxo-4-[2-(5-tiofen-2-il-[1,3,4]oxadiazol-2-il)pirrolidin1-il]butírico
- 77
- 2-(3-metoxifenil)-5-[1-(4-metoxi-2,3,6-trimetil-bencilsulfonil)pirrolidin-2il]-[1,3,4]oxadiazol
- 78
- 4-{5-[1-(2,3,5,6-tetrametil-bencilsulfonil)pirrolidin-2-il]-[1,3,4]oxadiazol-2il}piridina
- 79
- 1-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-1-hexanona
- Ejp. nº
- Compuesto según la invención
- 80
- ciclopentil-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-metanona
- 81
- (3-cloro-2-fluorofenil)-{2-[5-(2-fluorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin1-il}-metanona
- 82
- 2-[1-(4-cloro-2,5-dimetil-bencilsulfonil)pirrolidin-2-il]-5-(4-clorofenil)[1,3,4]oxadiazol
- 83
- (4-clorofenil)-[2-(5-piridin-3-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 84
- 3-fenil-1-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-propenona
- 85
- (5-metil-2-fenil-2H-[1,2,3]triazol-4-il)-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2il)pirrolidin-1-il]-metanona
- 86
- 3-{5-[1-(2,4-difluoro-bencilsulfonil)pirrolidin-2-il]-[1,3,4]oxadiazol-2-il}piridina
- 87
- 2-benciloxi-1-{2-[5-(3-metoxifenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}etanona
- 88
- (6-cloropiridin-3-il)-[2-(5-tiofen-2-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 89
- 3,3-dimetil-1-[2-(5-tiofen-2-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-1butanona
- 90
- (2-etoxifenil)-{2-[5-(3-metoxifenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}metanona
- 91
- (4-etilfenil)-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-metanona
- 92
- (4-bromofenil)-{2-[5-(3-metoxifenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}metanona
- 93
- (5-metilisoxazol-3-il)-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 94
- (2-cloropiridin-4-il)-{2-[5-(3-metoxifenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1il}-metanona
- 95
- {2-[5-(2-fluorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-(4-nitrofenil)metanona
- 96
- 1-{2-[5-(3-metoxifenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-3-fenilpropan1-ona
- 97
- (3-clorotiofen-2-il)-{2-[5-(3-metoxifenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1il}-metanona
- 98
- 2-(2-fluorofenil)-5-[1-(tolueno-4-sulfonil)pirrolidin-2-il]-[1,3,4]oxadiazol
- 99
- 4-{5-[1-(4-butoxi-bencilsulfonil)pirrolidin-2-il]-[1,3,4]oxadiazol-2-il}piridina
- 100
- ciclopropil-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-metanona
- Ejp. nº
- Compuesto según la invención
- 101
- (2,6-difluorofenil)-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 102
- (2,5-dimetilfuran-3-il)-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 103
- 2-[2-(5-piridin-3-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-sulfonil]benzoato de metilo
- 104
- 2-etil-1-[2-(5-tiofen-2-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-1-butanona
- 105
- (3-difluorometilsulfanil-fenil)-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metano
- 106
- benzo[1,2,5]oxadiazol-5-il-{2-[5-(3-metoxifenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-metanona
- 107
- 3-{5-[1-(tolueno-4-sulfonil)pirrolidin-2-il]-[1,3,4]oxadiazol-2-il}piridina
- 108
- 4-{5-[1-(3-trifluorometil-bencilsulfonil)pirrolidin-2-il]-[1,3,4]oxadiazol-2-il}piridina
- 109
- (4-etoxifenil)-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-metanona
- 110
- 2-(2-bromofenil)-1-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]etanona
- 111
- [2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-(4-trifluorometil-fenil)metanona
- 112
- 2-tiofen-2-il-5-[1-(2,4,6-trimetil-bencilsulfonil)pirrolidin-2-il]-[1,3,4]oxadiazol
- 113
- 1-{4-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-sulfonil]fenil}etanona
- 114
- furan-2-il-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-metanona
- 115
- (3,5-difluorofenil)-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 116
- [2-(5-bifenil-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-(4-nitrofenil)metanona
- 117
- (4-fluorofenil)-{2-[5-(2-fluorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}metanona
- 118
- {2-[5-(3-metoxifenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-(4-propilfenil)metanona
- 119
- (3,4-difluorofenil)-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 120
- (5-fluor-2-trifluorometil-fenil)-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-metanona
- 121
- 2-fenil-1-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-etanona
- Ejp. nº
- Compuesto según la invención
- 122
- [2-(5-piridin-3-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-(3-trifluorometoxifenil)-metanona
- 123
- (4-fluorofenil)-{2-[5-(3-metoxifenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}metanona
- 124
- (4-propilfenil)-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 125
- 2-fenil-1-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-1-butanona
- 126
- [2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-(4-trifluorometoxi-fenil)metanona
- 127
- (3-nitrofenil)-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 128
- 2-etil-1-{2-[5-(2-fluorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-1butanona
- 129
- (5-fluor-2-trifluorometil-fenil)-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1il]-metanona
- 130
- 1-{2-[5-(2-fluorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-2-propilpentan1-ona
- 131
- {2-[5-(3-metoxifenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-(5-metil-2-fenil2H-[1,2,3]triazol-4-il)-metanona
- 132
- [2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-(2-trifluorometil-fenil)metanona
- 133
- 2-(3-metoxifenil)-1-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-etanona
- 134
- 3-{5-[1-(4-trifluorometoxi-bencilsulfonil)pirrolidin-2-il]-[1,3,4]oxadiazol-2il}piridina
- 135
- {2-[5-(4-clorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-furan-2-ilmetanona
- 136
- {2-[5-(2-fluorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-furan-2-ilmetanona
- 137
- (4-metil-3-nitrofenil)-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 138
- (4-metoxifenil)-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-metanona
- 139
- (2-cloropiridin-4-il)-{2-[5-(2-fluoro-fenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1il}-metanona
- 140
- (3-bromofenil)-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-metanona
- 141
- 2-propil-1-[2-(5-piridin-3-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-1pentanona
- Ejp. nº
- Compuesto según la invención
- 142
- 2-(4-clorofenil)-5-{1-[4-(1,1-dimetilpropil)bencilsulfonil]pirrolidin-2-il}[1,3,4]oxadiazol
- 143
- (3-clorofenil)-[2-(5-piridin-3-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 144
- (3-cloro-4-fluorofenil)-[2-(5-piridin-3-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 145
- (2,6-difluor-3-metilfenil)-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1il]-metanona
- 146
- (3-fluor-4-metilfenil)-{2-[5-(3-metoxifenil)-[1,3,4]oxadiazol-2-il]pirrolidin1-il}-metanona
- 147
- {2-[5-(2-fluorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-(4-metil-[1,2,3]tiadiazol-5-il)-metanona
- 148
- 2-tiofen-2-il-5-[1-(tolueno-4-sulfonil)pirrolidin-2-il]-[1,3,4]oxadiazol
- 149
- {2-[5-(4-clorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-(3,4-dimetoxifenil)metanona
- 150
- {2-[5-(4-clorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-(4-etilfenil)metanona
- 151
- (4-terc-butilfenil)-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-metanona
- 152
- naft-1-il-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-metanona
- 153
- 1-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-4-penten-1-ona
- 154
- {2-[5-(2-fluorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-(4-propilfenil)metanona
- 155
- 1-{2-[5-(2-fluorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-3-fenilpropenona
- 156
- 1-{2-[5-(4-clorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-3,3-dimetil-1butanona
- 157
- 2-[1-(4-cloro-bencilsulfonil)pirrolidin-2-il]-5-(4-clorofenil)-[1,3,4]oxadiazol
- 158
- adamantan-1-il-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-metanona
- 159
- {2-[5-(2-fluorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-o-tolil-metanona
- 160
- benzo[1,2,5]oxadiazol-5-il-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 161
- (4-nitrofenil)-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-metanona
- 162
- 3-(2-clorofenil)-1-{2-[5-(2-fluorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}propenona
- 163
- 4-{5-[1-(4-etil-bencilsulfonil)pirrolidin-2-il]-[1,3,4]oxadiazol-2-il}piridina
- Ejp. nº
- Compuesto según la invención
- 164
- (2,5-bis-trifluorometil-fenil)-{2-[5-(4-clorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-metanona
- 165
- (2,5-bis-trifluorometil-fenil)-[2-(5-tiofen-2-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-metanona
- 166
- (1-fenil-5-propil-1H-pirazol-4-il)-[2-(5-piridin-3-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-metanona
- 167
- 1-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-3-(3-trifluorometilfenil)propenona
- 168
- (2-metilsulfanil-piridin-3-il)-[2-(5-tiofen-2-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-metanona
- 169
- (2,5-dimetilfuran-3-il)-{2-[5-(3-metoxifenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-metanona
- 170
- {2-[5-(4-clorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-(5-fluor-2trifluorometilfenil)-metanona
- 171
- (3-clorofenil)-[2-(5-tiofen-2-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 172
- (4-clorofenil)-[2-(5-tiofen-2-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 173
- (2,3-difluorofenil)-{2-[5-(3-metoxifenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1il}-metanona
- 174
- (2-metil-6-trifluorometil-piridin-3-il)-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-metanona
- 175
- 1-{2-[5-(4-clorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-2-etil-1-butanona
- 176
- 1-{2-[5-(4-clorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-4-penten-1-ona
- 177
- [2-(5-bifenil-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]pentafluorofenilmetanona
- 178
- (3-fluor-4-trifluorometil-fenil)-[2-(5-tiofen-2-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-metanona
- 179
- 1-{2-[5-(2-fluorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-4-fenoxi-1butanona
- 180
- [1-(4-clorofenil)-5-trifluorometil-1H-pirazol-4-il]-{2-[5-(2-fluorofenil)[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-metanona
- 181
- [2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-(4-trifluorometilsulfanilfenil)-metanona
- 182
- 2,2,2-trifluor-1-{7-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1sulfonil]-3,4-dihidro-1H-isoquinolin-2-il}-etanona
- Ejp. nº
- Compuesto según la invención
- 183
- 1-[2-(5-bifenil-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-2-metoxietanona
- 184
- (2-cloro-5-trifluorometil-fenil)-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-metanona
- 185
- (2-cloro-5-trifluorometil-fenil)-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1il]-metanona
- 186
- 1-{2-[5-(4-clorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-2-fenoxietanona
- 187
- (2,3-difluor-4-metilfenil)-{2-[5-(3-metoxifenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-metanona
- 188
- 2-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-sulfonil]benzoato de metilo
- 189
- 2-bifenil-4-il-5-{1-[4-(1,1-dimetilpropil)bencilsulfonil]pirrolidin-2-il}[1,3,4]oxadiazol
- 190
- 3-ciclopentil-1-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-1-propanona
- 191
- 3,3-dimetil-1-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-1-butanona
- 192
- (2-cloro-4-nitrofenil)-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 193
- 1-[2-(5-bifenil-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-2-(2-metoxietoxi)etanona
- 194
- 1-{2-[5-(4-clorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-2-etil-1hexanona
- 195
- 1-[2-(5-bifenil-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-2-fenil-1-butanona
- 196
- (2,3-dimetilfenil)-{2-[5-(2-fluorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}metanona
- 197
- (2,5-bis-trifluorometil-fenil)-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-metanona
- 198
- 2-(4-clorofenoxi)-1-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-etanona
- 199
- (2-etoxifenil)-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-metanona
- 200
- (5-terc-butil-2-metil-2H-pirazol-3-il)-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-metanona
- 201
- (4-metil-[1,2,3]tiadiazol-5-il)-[2-(5-tiofen-2-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-metanona
- 202
- [2-(5-bifenil-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-(3,4-diclorofenil)metanona
- 203
- (4-propilfenil)-[2-(5-tiofen-2-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 204
- (3,4-difluorofenil)-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- Ejp. nº
- Compuesto según la invención
- 205
- (3-cloro-2-fluorofenil)-[2-(5-tiofen-2-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 206
- (2-clorofenil)-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-metanona
- 207
- [2-(5-bifenil-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-m-tolil-metanona
- 208
- 1-{2-[5-(4-clorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-1-butanona
- 209
- {2-[5-(4-clorofenil)-[1,3,4]oxadiazol-2-il]-pirrolidin-1-il}piridin-2-ilmetanona
- 210
- [2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-(4-trifluorometil-fenil)metanona
- 211
- 2-bifenil-4-il-5-[1-(4-cloro-bencilsulfonil)pirrolidin-2-il]-[1,3,4]oxadiazol
- 212
- 1-[2-(5-bifenil-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-2-fenoxietanona
- 213
- 2-fenil-5-[1-(tolueno-4-sulfonil)pirrolidin-2-il]-[1,3,4]oxadiazol
- 214
- [2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-(3-trifluorometoxi-fenil}metanona
- 215
- [2-(5-bifenil-4-il-[1,3,4]oxadiazol-2-il)-pirrolidin-1-il]-(4-propilfenil)metanona
- 216
- benzoato de 2-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1carbonil]bencilo
- 217
- {2-[5-(4-clorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-(4-nitrofenil)metanona
- 218
- 2-fenoxi-1-[2-(5-tiofen-2-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-1propanona
- 219
- 2-(4-clorofenil)-1-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-etanona
- 220
- [2-(5-bifenil-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-(2-cloro-5trifluorometilfenil)-metanona
- 221
- (2,3-difluorofenil)-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 222
- 2-bifenil-4-il-5-[1-(3-cloro-4-fluoro-bencilsulfonil)pirrolidin-2-il]-[1,3,4]oxadiazol
- 223
- (3,4-difluorofenil)-[2-(5-tiofen-2-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 224
- 1-[2-(5-bifenil-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-2-propil-1pentanona
- 225
- (3-fluor-4-trifluorometil-fenil)-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-metanona
- Ejp. nº
- Compuesto según la invención
- 226
- (6-cloro-2-fluor-3-metilfenil)-{2-[5-(4-clorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-metanona
- 227
- (2-fenilciclopropil)-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 228
- (4-bromo-3-metilfenil)-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]metanona
- 229
- [2-(5-bifenil-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-(2,3-dimetilfenil)metanona
- 230
- [2-(5-bifenil-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-(3-clorofenil)metanona
- 231
- [2-(5-bifenil-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-(2,3-difluor-4-metilfenil)-metanona
- 232
- (2-cloro-6-fluorofenil)-{2-[5-(4-clorofenil)-[1,3,4]oxadiazol-2-il]-pirrolidin1-il}-metanona
- 233
- [2-(5-bifenil-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-(5-terc-butil-2-metil2H-pirazol-3-il)-metanona
- 234
- {2-[5-(4-clorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-(2,3-diclorofenil)metanona
- 235
- (4-etoxifenil)amida de ácido 2-(5-piridin-3-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-carboxílico
- 236
- (2,5-diclorofenil)amida de ácido 2-(5-piridin-3-il-[1,3,4]oxadiazol-2il)pirrolidin-1-carboxílico
- 237
- 4-fluorobencilamida de ácido 2-[5-(3-metoxifenil)-[1,3,4]oxadiazol-2il]pirrolidin-1-carboxílico
- 238
- (2,5-dimetoxifenil)amida de ácido 2-[5-(2-fluorofenil)-[1,3,4]oxadiazol-2il]pirrolidin-1-carboxílico
- 239
- (2,5-dimetoxifenil)amida de ácido 2-(5-bifenil-4-il-[1,3,4]oxadiazol-2il)pirrolidin-1-carboxílico
- 240
- (2,5-difluorofenil)amida de ácido 2-(5-bifenil-4-il-[1,3,4]oxadiazol-2il)pirrolidin-1-carboxílico
- 241
- (3-cianofenil)amida de ácido 2-(5-bifenil-4-il-[1,3,4]oxadiazol-2il)pirrolidin-1-carboxílico
- 242
- (3-cianofenil)amida de ácido 2-(5-bifenil-4-il-[1,3,4]oxadiazol-2il)pirrolidin-1-carboxílico
- 243
- (3-cianofenil)amida de ácido 2-[5-(3-metoxifenil)-[1,3,4]oxadiazol-2il]pirrolidin-1-carboxílico
- Ejp. nº
- Compuesto según la invención
- 244
- (4-cloro-3-trifluorometil-fenil)amida de ácido 2-(5-fenil-[1,3,4]oxadiazol2-il)pirrolidin-1-carboxílico
- 245
- (4-metoxifenil)amida de ácido 2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1carboxílico
- 246
- (4-trifluorometoxi-fenil)amida de ácido 2-(5-bifenil-4-il-[1,3,4]oxadiazol2-il)pirrolidin-1-carboxílico
- 247
- 1-{2-[5-(3-clorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-3-ciclopentil-1propanona
- 248
- 1-{2-[5-(3-clorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}-1-pentanona
La preparación de los compuestos según la invención se llevó a cabo de
acuerdo con los procedimientos arriba descritos y se muestra a continuación
detalladamente por medio de los siguientes dos ejemplos:
Ejemplo 247: 1-{2-[5-(3-clorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}3-ciclopentil-1-propanona
Paso 1
Una solución de cloroformiato de etilo (10,33 ml) en 20 ml de THF seco
10 se añadió gota a gota, a lo largo de 5 minutos, a una solución agitada y enfriada a -15ºC de boc-(L)-prolina (23,27 g) y 15,07 ml de trietilamina en 250 ml de THF seco. La mezcla se agitó durante otros 30 minutos a -15ºC. La mezcla de reacción fría se filtró, el filtrado se concentró a un volumen de aproximadamente 125 ml y después se añadió gota a gota, a lo largo de 15 minutos, a una
15 solución agitada y enfriada (0ºC) de monohidrato de hidrazina en 150 ml de THF seco. La mezcla de reacción se agitó durante otros 15 minutos a 0ºC y a continuación durante otras 2 horas a temperatura ambiente. La solución se sometió a decantación para separarla de un aceite blanco lechoso situado en el fondo del matraz y se concentró hasta sequedad. El producto crudo se utilizó sin
20 ninguna purificación adicional. Rendimiento: 25,63 g.
Paso 2
11,42 ml de cloruro de 3-clorobenzoílo en 10 ml de THF seco se añadió gota a gota, a lo largo de 5 minutos, a una solución agitada y enfriada a -15ºC de la hidrazida b (18,6 g) y trietilamina (13 ml) en 180 ml de THF seco. La mezcla se agitó durante otros 20 minutos a -15ºC, 60 minutos a 0ºC y 2 horas a temperatura ambiente. La mezcla de reacción se filtró y el filtrado se concentró hasta sequedad. El producto crudo marrón aceitoso se sometió a cromatografía en gel de sílice (DCM, 3,75% metanol). Rendimiento: 18,67 g.
Paso 3
10
La ciclación se llevó a cabo en dietil éter anhidro bajo atmósfera de nitrógeno. 6,3 g de SOCl2 se añadieron gota a gota a una solución enfriada a 0ºC de la hidrazida c (15 g) y 8,4 g de piridina en dietil éter seco. La mezcla de reacción se agitó durante 2 horas a 0ºC. La sal formada se filtró y el filtrado se
15 concentró a 0ºC. El residuo se disolvió en 500 ml de tolueno y se calentó a reflujo bajo atmósfera de nitrógeno. Dos horas después, la solución se concentró hasta sequedad y se purificó mediante cromatografía en gel de sílice (dietil éter). Rendimiento 13 g.
Paso 4
13 g del derivado de oxadiazol d se disolvieron en 25 ml de DCM. Después de añadir 5 ml de ácido trifluoroacético (Tfa), la mezcla se agitó durante 6 días bajo atmósfera de nitrógeno. Después de otra adición de 10 ml
5 de ácido trifluoroacético, la mezcla de reacción se agitó durante otras 6 horas y a continuación se concentró hasta sequedad. Luego se añadieron 100 ml de una solución acuosa saturada de NaHCO3 y 100 ml de DCM y la fase acuosa se extrajo otras dos veces con DCM. Las fases orgánicas reunidas se secaron sobre Na2SO4 y se concentraron hasta sequedad. El producto se utilizó sin
10 ninguna purificación adicional. Rendimiento: 10 g.
Paso 5
804 mg del derivado de oxadiazol e se disolvieron en 9 ml de DCM. A una temperatura de -20ºC se añadieron 326 mg de trietilamina y 517 mg de cloruro
15 de 3-ciclopentilpropionilo en 1 ml de DCM. La mezcla de reacción se agitó durante 2 horas a -20ºC y a continuación se concentró hasta sequedad. El producto se purificó mediante cromatografía en columna (gel de sílice, acetato de etilo/heptano 1:2, después Allox básico, acetato de etilo/heptano 1:2). Rendimiento: 170 mg.
20 Ejemplo 248: 1-{2-[5-(3-clorofenil)-[1,3,4]oxadiazol-2-il]pirrolidin-1-il}1-pentanona
Los pasos 1-4 correspondieron a los pasos 1-4 del Ejemplo 247.
Paso 5:
1,3 g del derivado de oxadiazol e se disolvieron en 9 ml de DCM. A una temperatura de -20ºC se añadieron 1 g de trietilamina y 620 mg de cloruro de 3
5 valeroílo en 1 ml de DCM. La mezcla de reacción se agitó durante 2 horas a -20ºC y a continuación se concentró hasta sequedad. El producto se purificó mediante cromatografía en columna (gel de sílice, acetato de etilo/heptano 1:2, después Allox básico, acetato de etilo/heptano 1:2). Rendimiento: 181 mg.
10 Análisis de la inhibición de la reabsorción de serotonina (inhibición de la reabsorción de 5HT)
Para poder realizar estos estudios in vitro se aíslan sinaptosomas frescos de áreas cerebrales de rata. En cada caso se utiliza una, así llamada, fracción “P2”, que se prepara de acuerdo con las instrucciones de Gray y Whittaker (E.G.
15 Gray y V.P. Whittaker (1962) J. Anat. 76, 79-88). Para la reabsorción de 5-HT, estas partículas vesiculares se aíslan de la médula + región del puente de cerebros de ratas macho.
En la literatura se puede obtener una descripción detallada de los métodos (M.Ch. Frink, H.-H. Hennies, W. Englberger, M. Haurand y B. Wilffert 20 (1996) Arzneim.-Forsch./Drug Res. 46 (III), 11, 1029-1036).
A modo de ejemplo se analizaron los siguientes compuestos en cuanto a su inhibición de la reabsorción de 5HT:
25
Tabla 1
- Compuesto según el ejemplo nº
- Reabsorción de 5HT, % de inhibición
- 4
- 72
- 5
- 81
- 6
- 84
- 7
- 64
- 12
- 54
- 13
- 67
- 14
- 69
- 22
- 60
- 30
- 60
- 61
- 50
- 67
- 50
- 84
- 61
- 85
- 61
- 86
- 73
- 92
- 58
- 94
- 50
- 101
- 54
- 109
- 54
- 134
- 55
- 164
- 80
- 165
- 76
- 166
- 78
- 173
- 62
- 174
- 61
- 181
- 62
- 182
- 52
El análisis del efecto analgésico se llevó a cabo en ratones mediante el ensayo Writhing inducido por fenilquinona (modificado según I.C. Hendershot y
J. Forsaith (1959) J. Pharmacol. Exp. Ther. 125, 237-240). Para ello se utilizaron
ratones NMRI macho con un peso de 25 a 30 g. Se formaron grupos de 10 animales por dosis de sustancia que, 10 minutos después de la administración intravenosa de las sustancias de ensayo, recibieron una administración vía intraperitoneal de 0,3 ml/ratón de una solución acuosa de fenilquinona al 0,02% 5 (Phenylbenzochinon, firma Sigma, Deisenhofen; preparación de la solución mediante adición de un 5% de etanol y conservación en baño de agua a 45ºC). Los animales se introdujeron individualmente en jaulas de observación. Mediante un contador de pulsador se contó la cantidad de movimientos de extensión inducidos por dolor (denominados reacciones Writhing = presión del 10 cuerpo con extensión de las extremidades traseras) de 5 a 20 minutos después de la administración de fenilquinona. Como control se utilizaron animales a los que sólo se les administró solución fisiológica salina. Todas las sustancias se analizaron en la dosis estándar de 10 mg/kg. La inhibición porcentual (% inhibición) de la reacción Writhing por medio de una sustancia se calculó de
15 acuerdo con la siguiente fórmula:
Reacciones Writhing en animales tratados
% inhibición 100 x100
Reacciones Writhing en animales control
Para algunas sustancias se calcularon los valores ED50 con un margen de confianza de un 95% de la reacción Writhing mediante análisis de regresión a
20 partir de la disminución de las reacciones Writhing dependiente de la dosis en comparación con grupos de control de fenilquinona analizados paralelamente (programa de evaluación Martens EDV Service, Eckental).
Los compuestos según la invención analizados mostraron un buen efecto analgésico. Los resultados se resumen en la siguiente tabla.
25 Tabla 2
- Ejemplo
- % de inhibición de la reacción Writhing con administración intravenosa de 10 mg/kg
- 247
- 33
- 248
- 45
Claims (4)
- REIVINDICACIONES1. Derivados de 2-pirrolidin-2-il-[1,3,4]-oxadiazol sustituidos de fórmula general I
imagen1 5en la queR1 significa arilo o heteroarilo;R2 significa H, SO2R3 o COR4;R3 y R4 significan, independientemente entre sí, alquilo(C1-10),10 cicloalquilo(C3-10), alquil(C1-6)-cicloalquilo(C3-10), arilo, alquil(C1-6)arilo, heterociclilo, grupos éster de ácidos carboxílicos de 3-10 átomos de C, dimetilamina o NR5R6;R5 y R6 significan, independientemente entre sí, H, bencilo o fenilo, estando el bencilo o fenilo en cada caso sustituido de forma simple o 15 múltiple, igual o diferente, con F, Cl, O-alquilo, CN, CF3 u OCF3;incluyendo el concepto “alquilo” grupos hidrocarburo acíclicos, saturados o insaturados, ramificados o de cadena lineal, sustituidos de forma simple o múltiple o no sustituidos, estando también incluidos grupos cuya cadena de C está interrumpida por uno o más de los20 heteroátomos N, O o S, e incluyendo el concepto “cicloalquilo” grupos hidrocarburo cíclicos que pueden ser saturados o insaturados, estar sustituidos de forma simple o múltiple o no sustituidos, o en caso dado benzocondensados;entendiéndose por el concepto “sustituido” en relación con “alquilo” y25 “cicloalquilo” la sustitución simple o múltiple de uno o más átomos de hidrógeno por F, Cl, Br, I, -CN, NH2, NH-alquilo, NH-arilo, NH-alquilarilo, NH-heterociclilo, N(alquilo)2, N(alquil-arilo)2, N-alquil-N-arilo, NO2, OH, grupo ceto, O-alquilo, O-arilo, O-alquil-arilo, C(=O)alquilo(C1-6), C(=O)arilo, C(=O)alquil(C1-6)arilo, C(=O)heterocicilo, CO2H, CO2-alquilo, CO2-alquilarilo, C(=O)NH2, C(=O)NHalquilo, C(=O)NH-arilo, C(=O)NH-heterociclilo, C(=O)N(alquilo)2, C(=O)N(alquilarilo)2, cicloalquilo, arilo o heterociclilo. - 2. Compuestos según la reivindicación 1, caracterizados porqueR1 significa arilo o heteroarilo; siendo arilo igual a fenilo no sustituido o sustituido con F, Cl, O-alquilo o fenilo, y siendo heteroarilo igual a piridinilo o tienilo;R2 significa H, SO2R3 o COR4;R3 y R4 significan, independientemente entre sí, alquilo(C1-10), cicloalquilo(C3-10), alquil(C1-6)cicloalquilo(C3-10); fenilo, bencilo o naftilo no sustituido, sustituido de forma simple o sustituido de forma múltiple, igualo diferente, con fenilo, NO2, alquilo(C1-6), cuya cadena de átomos de C en caso dado está interrumpida por uno o más de los heteroátomos N, O o S, preferentemente por O, O-alquilo, CO2-alquilo, C(=O)alquilo(C1-6), CH2OC(=O)C6H5, F, Cl, Br, N(CH3)2, OCF3, CF3, SCHF2, SCF3 o (C=O)CH3; alquil(C1-6)arilo, heterociclilo, grupos éster carboxílicos de 3-10 átomos de C, dimetilamina o NR5R6; dondealquilo(C1-10) representa metilo, propilo, butilo, butenilo, isobutilo, pentilo, pent-3-ilo, hept-3-ilo, hept-4-ilo, 2,2-dimetilpropilo, CH2OCH3 o CH2O(CH2)2OCH3;cicloalquilo(C3-10) representa ciclopropilo, ciclobutilo, ciclopentilo, adamantan-1-ilo o 2-fenilciclopropilo;alquil(C1-6)cicloalquilo(C3-10) representa CH2-ciclopentilo, (CH2)2ciclopentilo o 7,7-dimetil-1-metil-biciclo[2.2.1]heptan-2-ona;alquil(C1-6)arilo representa 3,4-dimetoxifenilo-CH2, 4-clorofenoxi-CH2, fenil-CH=CH, bencil-OCH2, fenil-(CH2)2, 2-bromofenil-CH2, 1-fenilpropilo, 2-clorofenil-CH=CH, 3-trifluorometil-fenil-CH=CH, fenoxi-CH2, fenoxi(CH2)3 o fenoxi-CH(CH3);heterociclilo representa piridinilo, isoxazol, tienilo, furanilo, triazol, benzooxadiazol, tiadiazol, pirazol o isoquinolina, no sustituido o sustituido
- de forma simple o múltiple, igual o diferente, con Cl, alquilo(C1-6), fenilo,
- que a su vez no está sustituido o está sustituido de forma simple o
- múltiple, igual o diferente, con Cl o alquilo(C1-6), CF3, C(=O)CF3 o SCH3;
- los grupos éster carboxílicos de 3-10 átomos de C representan
- 5
- CH3OC(=O)CH2
- CH3OC(=O)(CH2)3
- CH3CH2OC(=O)CH2
- CH3CH2OC(=O)(CH2)2
- CH3C(=O)OCH2
- 10
- CH3C(=O)OC(CH3)2 o
- CH3C(=O)OCH(C6H5).
-
- 3.
- Compuestos según la reivindicación 1 ó 2, caracterizados porque
- R1 significa fenilo, bisfenilo-4-ilo, 3-metoxifenilo, 4-clorofenilo, 2
- 15
- fluorofenilo, piridin-3-ilo, piridin-4-ilo o tiofen-2-ilo;
- R2 significa H, SO2R3 o COR4;
- R3 y R4 significan, independientemente entre sí, CH3CH2OCO(CH2)2-, 2,4
- dimetoxifenilo, 2-cloropiridin-3-ilo, 2-cloropiridin-4-ilo, 7,7-dimetil-1-metil
- biciclo[2.2.1]heptan-2-ona, 3-dimetilamino-fenilo, 3,4-dimetoxifenilo, 2,5
- 20
- dimetoxifenilo, 4-clorofenilo, 4,5-diclorotiofen-2-ilo, 2,4,6-trimetilfenilo, 4
- clorofenoxi-metilo, C6H5CH=CH-, 5-metil-2-fenil-2H-[1,2,3]triazol-4-ilo, 2,4
- difluorofenilo, 2,6-difluorofenilo, 4-bromofenilo, 4-etoxifenilo, 4
- trifluorometoxifenilo, 2,5-bis-trifluorometil-fenilo, 1-fenil-5-propil-1H-pirazol
- 4-ilo, 3-metoxifenilo, 2-metil-6-trifluorometil-piridin-3-ilo, 4-trifluorometil
- 25
- sulfanil-fenilo, 2,2,2-trifluor-1-3,4-dihidro-1H-isoquinolin-2-il-etanona o
- NR5R6;
- R5 y R6 significan, independientemente entre sí, H o 3-metoxifenilo, 4
- metoxifenilo, 4-etoxifenilo, 2,5-dimetoxifenilo, 2,5-diclorofenilo, 2,5
- difluorofenilo, 4-fluorobencilo, 4-cloro-3-trifluorometil-fenilo, 4
- 30
- trifluorometoxi-fenilo o 3-cianofenilo.
-
- 4.
- Derivado de 2-pirrolidin-2-il-[1,3,4]-oxadiaxol sustituido según la
- reivindicación 1 del grupo que incluye:
- etil éster de ácido 4-oxo-4-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1
- il]butírico
- 5
- (2,4-dimetoxifenil)-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]
- metanona
- (2-cloropiridin-3-il)-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]
- metanona
- 7,7-dimetil-1-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-sulfonilmetil]
- 10
- biciclo[2.2.1]heptan-2-ona
- (3-dimetilamino-fenil)-[2-(5-piridin-3-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]
- metanona
- 2-(3,4-dimetoxifenil)-1-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]
- etanona
- 15
- [2-(5-bifenil-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-(4-clorofenil)-metanona
- 4-{5-[1-(4,5-diclorotiofeno-2-sulfonil)pirrolidin-2-il]-[1,3,4]oxadiazol-2
- il}piridina
- 3-{5-[1-(2,5-dimetoxi-bencilsulfonil)pirrolidin-2-il]-[1,3,4]oxadiazol-2-il}
- piridina
- 20
- 2-(2-fluorofenil)-5-[1-(2,4,6-trimetil-bencilsulfonil)pirrolidin-2-il]-[1,3,4]
- oxadiazol
- 2-(4-clorofenoxi)-1-[2-(5-piridin-4-il-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]
- etanona
- 3-fenil-1-[2-(5-fenil-[1,3,4]oxadiazol-2-il)pirrolidin-1-il]-propenona.
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|---|---|---|---|
| DE10240818 | 2002-08-20 | ||
| DE10240818A DE10240818A1 (de) | 2002-08-30 | 2002-08-30 | Substituierte 2-Pyrrolidin-2-yl-[1,3,4]-oxadiazol-Derivate |
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| RU2417995C1 (ru) * | 2009-09-21 | 2011-05-10 | Государственное образовательное учреждение высшего профессионального образования "Кубанский государственный технологический университет" (ГОУ ВПО "КубГТУ") | Способ получения 3-(2-замещенных-1,3-оксазол-4-ил)пиридин-2(1н)-онов |
| CN103420998A (zh) * | 2012-05-16 | 2013-12-04 | 苏州爱斯鹏药物研发有限责任公司 | 一种新型噁二唑衍生物的合成方法 |
| PT2855453T (pt) | 2012-06-04 | 2017-03-09 | Actelion Pharmaceuticals Ltd | Derivados de benzimidazol-prolina |
| US10092574B2 (en) | 2012-09-26 | 2018-10-09 | Valorisation-Recherche, Limited Partnership | Inhibitors of polynucleotide repeat-associated RNA foci and uses thereof |
| AU2013328301A1 (en) * | 2012-10-10 | 2015-05-28 | Actelion Pharmaceuticals Ltd | Orexin receptor antagonists which are [ortho bi (hetero-)aryl]-[2-(meta bi (hetero-)aryl)-pyrrolidin-1-yl]-methanone derivatives |
| CN105051040A (zh) * | 2013-03-12 | 2015-11-11 | 埃科特莱茵药品有限公司 | 作为食欲素受体拮抗剂的氮杂环丁烷酰胺衍生物 |
| CN103333165B (zh) * | 2013-07-01 | 2016-02-24 | 河南理工大学 | 2-苯基-5-(3,4-二甲基)吡咯基-1,3,4-噁二唑及制备方法 |
| MX366642B (es) | 2013-12-04 | 2019-07-17 | Idorsia Pharmaceuticals Ltd | Uso de derivados de bencimidazol-prolina. |
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| FR2215949B1 (es) * | 1973-02-01 | 1976-07-02 | Delalande Sa | |
| US4784998A (en) * | 1987-04-06 | 1988-11-15 | Bristol-Myers Company | 1,3,4-oxadiazole pyschotropic compounds |
| DE19643037A1 (de) * | 1996-10-18 | 1998-04-23 | Boehringer Ingelheim Kg | Neue Oxadiazole, Verfahren zu ihrer Herstellung sowie deren Verwendung als Arzneimittel |
| US5965537A (en) * | 1997-03-10 | 1999-10-12 | Basf Aktiengesellschaft | Dolastatin 15 derivatives with carbonyl and heterocyclic functionalities at the C-terminus |
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-
2002
- 2002-08-30 DE DE10240818A patent/DE10240818A1/de not_active Withdrawn
-
2003
- 2003-08-25 WO PCT/EP2003/009390 patent/WO2004024725A1/de not_active Ceased
- 2003-08-25 AT AT03794933T patent/ATE484503T1/de active
- 2003-08-25 CA CA002497078A patent/CA2497078A1/en not_active Abandoned
- 2003-08-25 DK DK03794933.6T patent/DK1532141T3/da active
- 2003-08-25 PT PT03794933T patent/PT1532141E/pt unknown
- 2003-08-25 ES ES03794933T patent/ES2351119T3/es not_active Expired - Lifetime
- 2003-08-25 RU RU2005109164/04A patent/RU2324694C2/ru not_active IP Right Cessation
- 2003-08-25 DE DE50313185T patent/DE50313185D1/de not_active Expired - Lifetime
- 2003-08-25 PL PL03375627A patent/PL375627A1/xx not_active Application Discontinuation
- 2003-08-25 CN CNB038201976A patent/CN100390168C/zh not_active Expired - Fee Related
- 2003-08-25 MX MXPA05002298A patent/MXPA05002298A/es active IP Right Grant
- 2003-08-25 SI SI200331896T patent/SI1532141T1/sl unknown
- 2003-08-25 JP JP2004535155A patent/JP2006506348A/ja active Pending
- 2003-08-25 EP EP03794933A patent/EP1532141B1/de not_active Expired - Lifetime
- 2003-08-28 PE PE2003000883A patent/PE20040983A1/es not_active Application Discontinuation
- 2003-08-29 AR ARP030103137A patent/AR041093A1/es unknown
-
2005
- 2005-02-28 US US11/066,981 patent/US7105538B2/en not_active Expired - Fee Related
-
2010
- 2010-11-17 CY CY20101101028T patent/CY1110913T1/el unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE10240818A1 (de) | 2004-05-13 |
| AR041093A1 (es) | 2005-05-04 |
| WO2004024725A1 (de) | 2004-03-25 |
| DK1532141T3 (da) | 2010-11-22 |
| EP1532141B1 (de) | 2010-10-13 |
| RU2324694C2 (ru) | 2008-05-20 |
| EP1532141A1 (de) | 2005-05-25 |
| CN1678609A (zh) | 2005-10-05 |
| SI1532141T1 (sl) | 2010-12-31 |
| DE50313185D1 (de) | 2010-11-25 |
| CA2497078A1 (en) | 2004-03-25 |
| AU2003264097A1 (en) | 2004-04-30 |
| RU2005109164A (ru) | 2006-01-20 |
| JP2006506348A (ja) | 2006-02-23 |
| ATE484503T1 (de) | 2010-10-15 |
| PT1532141E (pt) | 2010-11-02 |
| MXPA05002298A (es) | 2005-06-08 |
| PE20040983A1 (es) | 2005-01-12 |
| US20050187260A1 (en) | 2005-08-25 |
| PL375627A1 (en) | 2005-12-12 |
| US7105538B2 (en) | 2006-09-12 |
| CY1110913T1 (el) | 2015-06-10 |
| CN100390168C (zh) | 2008-05-28 |
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