申请人:Ono Pharmaceutical Co., Ltd.
公开号:US04980372A1
公开(公告)日:1990-12-25
A benzoylaminophenoxybutanoic acid derivative of general formula: ##STR1## [wherein R.sup.1 represents hydrogen atom or alkyl group of from 1 to 4 carbon atoms(s), A represents oxygen atom, sulfur atom or sulfinyl (SO) group, two R.sup.1 s represents methyl groups or chlorine atoms at the same time or cyclopentane, cyclohexane or benzene ring together with the carbon atoms of benzene ring each attaching, R.sup.2 represents a group of general formula: ##STR2## wherein B represents oxygen atom, sulfur atom or a group of general formula: NR.sup.11 (wherein R.sup.11 represents hydrogen atom or alkyl group of from 1 to 4 carbon atom(s)), R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 represent, independently, hydrogen atom, alkyl group of from 1 to 4 carbon atom(s) halogen atom, trifluoromethyl group or cyclobutylmethyl group, m represents 0 or 1, n represents an integer of from 1 to 5, and R.sup.9 and R.sup.10 represent, independently, hydrogen atom, alkyl group of from 1 to 5 carbon atom(s) or a group of general formula: ##STR3## (wherein R.sup.12, R.sup.13, R.sup.14 and R.sup.15 represent, independently, hydrogen atom, alkyl group of from 1 to 4 carbon atom(s), halogen atom, trifluoromethyl group or cyclobutylmethyl group, and l represents an integer of from 1 to 4). With the proviso that R.sup.9 and R.sup.10 do not represent hydrogen atoms at the same time}] and non-toxic salts thereof possess an inhibitory activity on 5.alpha.-reductase, and therefore be useful for treating and/or preventing agent for alopecia, acnes or prostatic hypertrophy.
一种苯甲酰氨基苯氧基丁酸衍生物的一般式:##STR1## [其中R.sup.1表示氢原子或1至4个碳原子的烷基,A表示氧原子,硫原子或亚磺酰(SO)基,两个R.sup.1同时表示甲基或氯原子,或与苯环的碳原子一起形成环戊烷,环己烷或苯环,R.sup.2表示一般式的基团:##STR2## 其中B表示氧原子、硫原子或一般式的基团:NR.sup.11(其中R.sup.11表示1至4个碳原子的氢原子或烷基),R.sup.3、R.sup.4、R.sup.5、R.sup.6、R.sup.7和R.sup.8独立地表示氢原子、1至4个碳原子的烷基、卤原子、三氟甲基基团或环丁基甲基基团,m表示0或1,n表示1至5的整数,R.sup.9和R.sup.10独立地表示氢原子、1至5个碳原子的烷基或一般式的基团:##STR3##(其中R.sup.12、R.sup.13、R.sup.14和R.sup.15独立地表示氢原子、1至4个碳原子的烷基、卤原子、三氟甲基基团或环丁基甲基基团,l表示1至4的整数)。但是,R.sup.9和R.sup.10不能同时表示氢原子。】和其非毒性盐具有5α-还原酶的抑制活性,因此可用于治疗和/或预防脱发、粉刺或前列腺肥大的药剂。