申请人:Takeda Chemical Industries, Ltd.
公开号:EP0431953A3
公开(公告)日:1992-01-02
Compounds of the formula:
wherein the ring Ⓐ is a pyrrole ring which may be hydrogenated; X is an amino, hydroxyl or mercapto group; Y is a hydrogen or hydroxyl group; -COOR¹ and -COOR² independently represents a carboxyl group which may be esterified; - Ⓑ - is a cycloalkylene or cycloalkenylene group which maybe substituted or a phenylene group which is substituted; Z is a divalent C₂₋₄ aliphatic group of straight chain which may be substituted or its salt. Their production is characterized by reacting the compounds of the formula,
wherein -COOR³ is a carboxyl group which may be esterified; Ⓐ , X, Y, Z and - Ⓑ - are the same as defined above or their reactive derivatives in the carboxyl group with the compounds of the formula,
wherein -COOR¹ and -COOR² are the same as defined above.The product compounds and their salts have inhibitory activity against enzymes which utilize folic acid or its related compound as a substrate, and are employable for treating tumors.
该化合物的结构式为:其中环A是吡咯环,可以氢化;X是氨基,羟基或巯基;Y是氢或羟基;-COOR¹和-COOR²分别表示可酯化的羧基;-Ⓑ-是环烷基或环烯基,可以被取代,或苯基,被取代;Z是直链的C₂₋₄双价脂肪族基或其盐,可以被取代。它们的制备方法是将具有以下结构式的化合物与具有以下结构式的化合物反应,其中-COOR³是可以酯化的羧基;Ⓐ,X,Y,Z和-Ⓑ-与上述定义相同,或其羧基反应衍生物。产物化合物及其盐具有抑制利用叶酸或其相关化合物作为底物的酶的活性,并可用于治疗肿瘤。