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.
本发明涉及具有以下通式的吡啶酮羧酸衍生物或其盐:##STR1##其中R1为氢原子、卤素原子等,R2为羧基等,R3为氢原子等,A为氮原子或CH,m为1或2,Y为可消除基团或具有以下通式的基团:##STR2##其中R4为氢原子或低级烷基,Z为氢原子、低级烷基等,R5为氢原子、低级烷基等,n为0或1,p为1、2、3或4,以及制备这些化合物的方法,并且进一步涉及含有上述化合物作为有效成分的抗肿瘤药物。