申请人:YAMANOUCHI PHARMACEUTICAL CO. LTD.
公开号:EP0757985A1
公开(公告)日:1997-02-12
N-(3-Pyrrodinyl)benzamide derivatives represented by the following general formula (I) which have potent and selective antagonism against dopamine D3 and/or D4 receptor and are useful as a psychotropic, a schizophrenia-treating agent and the like, or a pharmaceutically acceptable salt thereof or a pharmaceutical preparation thereof.
(wherein each symbol in the formula has the following meaning,
R1: hydrogen, lower alkyl, aralkyl, or cycloalkyl or cycloalkyl-lower alkyl having 3 to 8 ring atoms,
R2: bicyclic or tricyclic bridged hydrocarbon ring of 4 to 16 ring atoms which may have lower alkyl,
R3: lower alkoxy, amino or mono- or di-lower alkylamino,
R4: hydrogen, halogen, lower alkyl which may have hydroxyl, lower alkoxy, cyano, nitro, amino, mono- or di-lower alkylamino, acyl or a group represented by -S(O)m-R5,
R5: lower alkyl, amino or mono- or di-lower alkylamino,
m: 0, 1 or 2,
X: a bond or a group represented by -O-, -S(O)n-, -NH- or -CONH-, and
n: 0, 1 or 2,
with the proviso that, when R1 is cycloalky, the cases wherein X is -CONH-, R3 is lower alkoxy and R4 is halogen are excluded.)
N-(3-吡咯烷基)苯甲酰胺衍生物,由以下通式(I)代表,对多巴胺 D3 和/或 D4 受体具有强效和选择性拮抗作用,可用作精神药物、精神分裂症治疗剂等,或其药学上可接受的盐或其药物制剂。
(式中各符号含义如下、
R1:氢、低级烷基、芳烷基、环烷基或具有 3 至 8 个环原子的环烷基-低级烷基、
R2:具有 4 至 16 个环原子的双环或三环桥式烃环,其中可能有低级烷基、
R3:低级烷氧基、氨基或单或双低级烷基氨基、
R4:氢、卤素、可能具有羟基的低级烷基、低级烷氧基、氰基、硝基、氨基、单或双低级烷基氨基、酰基或由 -S(O)m-R5 所代表的基团、
R5:低级烷基、氨基或单或双低级烷基氨基、
m:0、1 或 2、
X:键或由-O-、-S(O)n-、-NH-或-CONH-代表的基团,以及
n:0、1 或 2、
但当 R1 为环烷基时,不包括 X 为-CONH-、R3 为低级烷氧基和 R4 为卤素的情况)。