申请人:SATO PHARMACEUTICAL CO., LTD.
公开号:US20020173517A1
公开(公告)日:2002-11-21
A compound represented by the following Formula (I) or a pharmaceutically acceptable salt thereof:
1
wherein
R
1
represents a hydrogen atom or a carboxyl-protecting group,
R
2
represents a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group or a hydroxyl group,
R
3
represents a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group, a lower alkylthio group, a nitro group, a cyano group, a hydroxyl group or an amino group;
R
4
represents a hydrogen atom, an amino-protecting group, an alkyl group or a cycloalkyl group, and
R
5
represents a hydrogen atom, a halogen atom, an alkyl group, an alkenyl group, a cycloalkyl group, an aryl group, an alkoxy group, an alkylthio group, a hydroxyl group, an imino group or an amino group.
化合物的化学式(I)或其药用盐表示为:其中R1代表氢原子或羧基保护基团,R2代表氢原子、卤原子、低碳基团、低氧基团或羟基,R3代表氢原子、卤原子、低碳基团、低氧基团、低硫基团、硝基、氰基、羟基或氨基;R4代表氢原子、氨基保护基团、烷基或环烷基,R5代表氢原子、卤原子、烷基、烯基、环烷基、芳基、氧基、硫基、羟基、亚胺基或氨基。