申请人:Takeda Chemical Industries, Ltd.
公开号:US04997838A1
公开(公告)日:1991-03-05
A compound of the formula ##STR1## wherein the ring .circle.A is a pyrrole or pyrroline ring, X is an amino group or a hydroxyl group, Y is a hydrogen atom, an amino group or a hydroxyl group, R is a hydrogen atom, a fluorine atom, an alkyl group, an alkenyl group or an alkynyl group, --COOR.sup.1 and --COOR.sup.2 are independently carboxyl groups which may be esterified and n is an integer of 2 to 4, and R may be different in each of the n repeating units, and salts thereof have excellent antitumor effects, and can be used as antitumor agents in mammals.
一种化合物,其化学式为##STR1##其中环.A是吡咯或吡咯烯环,X是氨基或羟基,Y是氢原子、氨基或羟基,R是氢原子、氟原子、烷基、烯基或炔基,--COOR.sup.1和--COOR.sup.2分别是可以酯化的羧基,n为2到4的整数,且R在n个重复单元中可以各不相同,其盐具有出色的抗肿瘤效果,可用作哺乳动物的抗肿瘤药物。