申请人:Tanabe Seiyaku Co., Ltd.
公开号:EP0270342A2
公开(公告)日:1988-06-08
Novel benzo-furan(or -thiophene) derivative of the formula:
wherein R¹ is hydrogen atom, a lower alkyl group, a cycloalkyl group, a phenyl-lower alkyl group or a substituted or unsubstituted phenyl group, R² is hydrogen atom, a lower alkyl group, an acyl group or phenyl group, R³ is hydrogen atom, a halogen atom, nitro group, a lower alkoxy group, amino group or an acylamino group, R⁴ is a group of the formula:
A is a lower alkylene group optionally substituted with hydroxy group, B is single bond or a lower alkylene group, one of R⁵ and R⁶ is hydrogen atom or a lower alkyl group and the other is a lower alkyl group or a phenyl-lower alkyl group, or R⁵ and R⁶ combine together with adjacent nitrogen atom to form a heteromonocyclic group, R⁷ is a lower alkyl group, X is oxygen atom or sulfur atom, Y is oxygen atom, imino group, a lower alkylimino group or a phenyl-lower alkylimino group and a salt thereof are disclosed.
The invention also includes a process for making the compound (I). said compound (I) and a salt thereof have a potent inhibitory activity against reflective contraction of urinary bladder.
式中的新型苯并呋喃(或噻吩)衍生物:
其中 R¹ 是氢原子、低级烷基、环烷基、苯基-低级烷基或取代或未取代的苯基,R² 是氢原子、低级烷基、酰基或苯基,R³ 是氢原子、卤素原子、硝基、低级烷氧基、氨基或酰氨基,R⁴ 是式中的一个基团:
A 是可选被羟基取代的低级亚烷基,B 是单键或低级亚烷基,R⁵ 和 R⁶ 中的一个是氢原子或低级亚烷基,另一个是低级亚烷基或苯基-低级亚烷基、或 R⁵ 和 R⁶ 与相邻的氮原子结合在一起形成杂单环基,R⁷ 是低级烷基,X 是氧原子或硫原子,Y 是氧原子、亚氨基、低级烷基亚氨基或苯基-低级烷基亚氨基及其盐。
本发明还包括一种制造化合物(I)的工艺。所述化合物(I)及其盐对膀胱的反射性收缩具有强效抑制活性。