Substituted azetidinone compounds, their preparation, and medicaments containing them
申请人:YAMANOUCHI PHARMACEUTICAL CO. LTD.
公开号:EP0171159A1
公开(公告)日:1986-02-12
Compounds of the following general formula (1) and salts thereof are useful pharmaceuticals having central nervous system activitv:
wherein one of R1 and R2 represents a substituted lower alkyl group, an azido group, an amino group, a lower acylamino group, a mercapto group or a lower alkylthio group and the other represents a hydrogen group, or both represent a hydrogen atom or a lower alkyl group; R3 represents a hydrogen atom or a group shown by formula:
[wherein X represents
(wherein R5 represents a hydrogen atom or a lower alkyl group) and Y represents a hydroxy group, a lower alkoxy group, an amino group, a mono- or di-lower alkylamino group]; and R4 represents a hydrogen atom, a substituted or unsubstituted lower alkyl group or a group shown by formula -CH2CO-A [wherein A represents an amino group or a group shown by formula
(wherein X and Y are as defined above)]; provided that (a) at least one of R3 and R4 is other than a hydrogen atom and (b) when R1 and R2 are both hydrogen atoms at least R4 is other than a hydrogen atom.
以下通式(1)的化合物及其盐类是具有中枢神经系统活性的有用药物:
其中 R1 和 R2 中的一个代表取代的低级烷基、叠氮基、氨基、低级酰氨基、巯基或低级烷硫基,另一个代表氢基,或二者均代表氢原子或低级烷基;R3 代表氢原子或式(1)所示的基团:
[其中 X 代表
(其中 R5 代表氢原子或低级烷基),Y 代表羟基、低级烷氧基、氨基、单或双低级烷基氨基];以及 R4 代表氢原子、取代或未取代的低级烷基或式 -CH2CO-A 所示的基团[其中 A 代表氨基或式所示的基团
(其中 X 和 Y 如上定义)];条件是 (a) R3 和 R4 中至少有一个不是氢原子,以及 (b) 当 R1 和 R2 都是氢原子时,至少 R4 不是氢原子。