申请人:TAKEDA CHEMICAL INDUSTRIES, LTD.
公开号:EP0530537A1
公开(公告)日:1993-03-10
A condensed pyrimidine derivative of the formula (I):
wherein the ring A stands for an optionally substituted 5-membered ring; B stands for an optionally substituted divalent 5- or 6-membered homo- or hetero-cyclic group; X stands for, among others, amino group; Y stands for, among others, hydrogen atom, halogen atom or amino group; Z stands for a divalent aliphatic group having five or less atoms forming straight chain, optionally having nitrogen, whose chain portion may optionally have a hetero-atom; W stands for, among others, -NH-CO-or -CO-NH-; R¹ stands for an optionally substituted cyclic or chain-like group ; COOR² stands for an optionally esterified carboxyl group; and p denotes an integer of 1 to 4, provided that when -W-R¹ denotes a moiety represented by the formula:
wherein COOR¹⁶ and COOR¹⁷ are, independently, an optionally esterified carboxyl group and n denotes an integer of 1 to 5, p denotes 1, 3 or 4, or a salt thereof, exhibiting highly specific toxicities to various tumor cells and excellent therapeutic effects on methotrexate-resistant tumor cells as well.
式 (I) 的缩合嘧啶衍生物:
其中,环 A 代表任选取代的 5 元环;B 代表任选取代的二价 5 元或 6 元同环或杂环基团;X 代表氨基;Y 代表氢原子、卤素原子或氨基;Z 代表二价脂肪族基团,该基团具有 5 个或更少原子,形成直链,可任选具有氮,其链部分可任选具有杂原子;W 表示-NH-CO-或-CO-NH-;R¹ 表示任选取代的环状或链状基团;COOR² 表示任选酯化的羧基;p 表示 1 至 4 的整数,条件是当 -W-R¹ 表示由式表示的分子时:
其中 COOR¹⁶和 COOR¹⁷分别为任选酯化的羧基,n 表示 1 至 5 的整数,p 表示 1、3 或 4,或其盐,对各种肿瘤细胞具有高度特异性毒性,对甲氨蝶呤耐药的肿瘤细胞也有极好的治疗效果。