申请人:Sloan-Kettering Institute for Cancer Research
公开号:US05391745A1
公开(公告)日:1995-02-21
Substituted analoguss of camptothecin possessing cytotoxic activity towards cancer cells, of the general structure: ##STR1## wherein E is H, CO.sub.2 R, CONH.sub.2, CONHR, CONR.sub.2, acyl, or CN; X is H OH, or OR; R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are independently the same or different and are H, or a linear or branched chain alkyl, alkylaryl, or hydroxyalkyl group, or an aryl group; R.sup.5, R.sup.6, R.sup.7, R.sup.8, and R.sup.9 are independently the same or different and are H, or a linear or branched chain alkyl, alkylaryl, alkoxy, hydroxyalkyl, or aminoalkoxy group, or an aryl or aryloxy group, or a C-glycal, or CO.sub.2 R, nitro, cyano, Cl, F, Br, I, SR.sup.10, NR.sup.11 R.sup.12, or OR.sup.13 ; R is H, or a linear or branched chain alkyl, alkylaryl, or hydroxyalkyl group, or an aryl group; R.sup.10, R.sup.11 and R.sup.12 are independently the same or different and are H, or a linear or branched chain alkyl, alkylaryl, hydroxyalkyl, or acyl group, or an aryl group; R.sup.13 is glycosyl; n is 0 or 1; with the proviso that when R.sup. 1 is ethyl, and n is 0, E, R.sup.2, R.sup.3, and R.sup.4 are not all H. Intermediate compounds leading to the camptothecin analogues comprise substituted tricyclic compounds which consist of rings C, D, and E fused together. Methods for preparing the analoguss involve condensation of such intermediates with variably substituted protected .alpha.-aminobenzaldehydes.
拥有对癌细胞具有细胞毒活性的拓扑异构体的卡铂替花碱类似物,其一般结构为:其中 E 为 H、CO.sub.2 R、CONH.sub.2、CONHR、CONR.sub.2、酰基或 CN;X 为 H、OH 或 OR;R.sup.1、R.sup.2、R.sup.3 和 R.sup.4 独立地相同或不同,为 H,或线性或支链烷基、烷基芳基、或羟基烷基基团,或芳基;R.sup.5、R.sup.6、R.sup.7、R.sup.8 和 R.sup.9 独立地相同或不同,为 H,或线性或支链烷基、烷基芳基、烷氧基、羟基烷基、或氨基氧基基团,或芳基或芳氧基基团,或 C-糖苷,或 CO.sub.2 R、硝基、氰基、Cl、F、Br、I、SR.sup.10、NR.sup.11R.sup.12 或 OR.sup.13;R 为 H,或线性或支链烷基、烷基芳基、或羟基烷基基团,或芳基;R.sup.10、R.sup.11 和 R.sup.12 独立地相同或不同,为 H,或线性或支链烷基、烷基芳基、羟基烷基、或酰基基团,或芳基;R.sup.13 为糖基;n 为 0 或 1;但当 R.sup.1 为乙基,且 n 为 0 时,E、R.sup.2、R.sup.3 和 R.sup.4 不全为 H。导致卡铂替花碱类似物的中间化合物包括由环 C、D 和 E 融合在一起的取代三环化合物。制备这些拓扑异构体的方法涉及将这些中间体与可变取代的保护的α-氨基苯甲醛进行缩合。