申请人:Dainippon Pharmaceutical Co., Ltd.
公开号:US05817669A1
公开(公告)日:1998-10-06
This invention relates to pyridone-carboxylic acid derivatives of the following formula or salts thereof: ##STR1## wherein R.sub.1 is a hydrogen atom, a halogen atom, etc., R.sub.2 is a carboxyl group etc., R.sub.3 is a hydrogen atom etc., A is a nitrogen atom or CH, m is 1 or 2, and Y is an eliminable group or a group having the following formula: ##STR2## wherein R.sub.4 is a hydrogen atom or a lower alkyl group, Z is a hydrogen atom, a lower alkyl group, etc., R.sub.5 is a hydrogen atom, a lower alkyl group, etc., n is 0 or 1, and p is 1, 2, 3 or 4 and to processes for the preparation of these compounds, and further to anti-tumor agents which contain the above compounds as effective ingredients.
本发明涉及以下式或其盐的吡啶酮羧酸衍生物:##STR1## 其中R.sub.1是氢原子、卤素原子等,R.sub.2是羧基等,R.sub.3是氢原子等,A是氮原子或CH,m为1或2,Y是可消除的基团或具有以下式的基团:##STR2## 其中R.sub.4是氢原子或较低烷基基团,Z是氢原子、较低烷基基团等,R.sub.5是氢原子、较低烷基基团等,n为0或1,p为1、2、3或4,以及制备这些化合物的方法,以及包含上述化合物作为有效成分的抗肿瘤剂。