Substituted 5,6,7,8-tetrahydroimidazo[1,5-a]pyridines and process for their preparation
申请人:FARMITALIA CARLO ERBA S.r.l.
公开号:EP0356673A2
公开(公告)日:1990-03-07
Object of the invention are 5,6,7,8-tetrahydroimidazo [1.5-a] pyridines having the following formula (I)
wherein W is
a) a 2-naphthyl or 1- or 2- or 9-anthryl radical wherein each benzene ring is unsubstituted or substituted by a substituent chosen from
(a₁)halogen, C₁-C₄ alkyl, aryl, aryl-C₁-C₄ alkyl, hydroxy, C₁-C₄ alkoxy aryloxy, aryl-C₁-C₄ alkoxy, formyloxy, C₂-C₅ alkanoyloxy, aroyloxy, mercapto,C₁-C₄ alkylthio, arylthio, aryl-C₁-C₄ alkylthio, C₁-C₄ alkylsulfonyl,arylsulfonyl, C₂-C₅ alkanoylthio, C₂-C₅ alkanoylamino, aroylamino, C₂-C₅ alkanoyl, aroyl,carboxy, C₂-C₅ alkoxycarbonyl, cyano, nitro, mono- or di-(C₁-C₄ alkyl) carbamyl, amino and mono- (C₁-C₄ alkyl) amino
(a₂) di-(C₁-C₄ alkyl) amino, morpholino, piperazino and C₁-C₄ alkyl--N-substituted piperazino, and
(a₃) a quaternary ammonium radical which is a radical as defined above under (a₂) having a or a further C₁-C₄ alkyl group as the fourth substituent on the nitrogen atom; or
b) a pyridyl, pyrazinyl , pyrimidyl or pyridazinyl ring wherein each said ring is unsubstituted or substituted by a substituent chosen from (a₁) to (a₃) above; and the pharmaceutically acceptable salts thereof, which are aromatase inhibitors.
本发明的目的是具有下式(I)的 5、6、7、8-四氢
咪唑并[1.5-a]
吡啶
其中 W 是
a) 2-
萘基或 1-或 2-或 9-
蒽基,其中每个苯环未被取代或被选自以下的取代基取代
(a₁)halogen, C₁-C₄ alkyl, aryl, aryl-C₁-C₄ alkyl, hydroxy, C₁-C₄ alkoxy aryloxy, aryl-C₁-C₄ alkoxy, formyloxy、C₂-C₅烷氧基、芳氧基、巯基、C₁-C₄烷
硫基、芳基
硫基、芳基-C₁-C₄烷
硫基、C₁-C₄烷基磺酰基、芳基磺酰基、C₁-C₄烷基磺酰基C₂-C₅烷酰
硫基,C₂-C₅烷酰
氨基,芳基
氨基,C₂-C₅烷酰基,芳基,羧基、C₂-C₅烷氧羰基、
氰基、硝基、单-或二-(C₁-C₄烷基)羰基、
氨基和单-(C₁-C₄烷基)
氨基
(a₂) 二(C₁-₄烷基)
氨基、吗啉基、
哌嗪基和 C₁-C₄ 烷基--N-取代的
哌嗪基,以及
(a₃) 季
铵基,该季
铵基是上文(a₂)中定义的基团,其氮原子上的第四个取代基是一个或另一个 C₁-C₄ 烷基;或
b)
吡啶基、
吡嗪基、
嘧啶基或
哒嗪基环,其中每个所述环未被取代或被选自上述 (a₁) 至 (a₃) 的取代基取代;及其药学上可接受的盐,它们是芳香化酶
抑制剂。