申请人:ONO PHARMACEUTICAL CO., LTD.
公开号:EP0294035A2
公开(公告)日:1988-12-07
A benzoylaminophenoxybutanoic acid derivative of general formula:
[wherein A represents oxygen, sulfur or sulfinyl, R¹ represents hydrogen or methyl, R² represents a group of the general formula:
[wherein
B represents oxygen, sulfur
or NR˝ (wherein R˝ represents hydrogen or alkyl, R³, R⁴, R⁵, R⁶, R⁷ and R⁸ represent independently, hydrogen, alkyl, halogen or trifluoromethyl, m represents 0 or 1, n is from 1 to 4, and R⁹ and R¹⁰ represent, independently, hydrogen, alkyl, optionally substituted phenylalkyl, optionally substituted benzoyl or tetrahydronaphthyl, with the proviso that R⁹ and R¹⁰ do not simultaneously represent hydrogen or non-toxic salts thereof, possess inhibitory activity on 5α-reductase, which is indicative of utility in treating and/or preventing alopecia, acne or prostatic hypertrophy.
一种通式为苯甲酰
氨基苯氧基
丁酸衍
生物:
[其中 A 代表氧、
硫或亚砜基,R¹ 代表氢或甲基,R² 代表通式中的一个基团:
其中
B 代表氧、
硫
或 NR˝(其中 R˝ 代表氢或烷基,R³、R⁴、R⁵、R⁶、R⁷ 和 R⁸ 分别独立地代表氢、烷基、卤素或三
氟甲基,m 代表 0 或 1,n 为 1 至 4,R⁹ 和 R¹⁰ 分别独立地代表氢、烷基、任选取代的苯基烷基、任选取代的苯甲酰基、任选取代的苯基烷基或任选取代的苯甲酰基)、R⁹和R¹⁰不同时代表氢或其无毒盐,对 5α 还原酶具有抑制活性,可用于治疗和/或预防脱发、痤疮或前列腺肥大。