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    • 1. 发明申请
    • CAMPTOTHECIN ANALOGUES AND METHODS OF PREPARATION THEREOF
    • CAMPTOTHECIN类似物及其制备方法
    • WO1994011376A1
    • 1994-05-26
    • PCT/US1993006918
    • 1993-07-23
    • SLOAN-KETTERING INSTITUTE FOR CANCER RESEARCH
    • SLOAN-KETTERING INSTITUTE FOR CANCER RESEARCHDANISHEFSKY, Samuel, J.BORNMANN, William, G.SHEN, WangCOBURN, Craig, A.
    • C07D491/14
    • C07D491/14C07H17/00
    • Substituted analogues of camptothecin possessing cytotoxic activity towards cancer cells, of general structure (I), wherein E is H, CO2R, CONH2, CONHR, CONR2, acyl, or CN; X is H, OH, or OR; R , R , R and R 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 , R , R , R and R 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 CO2R, nitro, cyano, Cl, F, Br, I, SR , NR R , or OR ; R is H, or a linear or branched chain alkyl, alkylaryl, or hydroxyalkyl group, or an aryl group; R , R and R 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 is glycosyl; n is 0 or 1; with the proviso that when R is ethyl, and n is 0, E, R , R and R 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 analogues involve condensation of such intermediates with variably substituted protected alpha -aminobenzaldehydes.
    • 具有一般结构(I)的癌细胞具有细胞毒性活性的喜树碱的取代类似物,其中E是H,CO 2 R,CONH 2,CONHR,CONR 2,酰基或CN; X是H,OH或OR; R 1,R 2,R 3和R 4独立地相同或不同,为H,或直链或支链烷基,烷基芳基或羟基烷基或芳基; R 5,R 6,R 7,R 8和R 9独立地相同或不同,为H,或直链或支链烷基,烷基芳基,烷氧基,羟基烷基或氨基烷氧基 氰基,Cl,F,Br,I,SR 10,NR 11 R 12或OR 13中的至少一个或多个。 R是H或直链或支链烷基,烷基芳基或羟基烷基或芳基; R 10,R 11和R 12独立地相同或不同,为H,或直链或支链烷基,烷芳基,羟基烷基或酰基或芳基; R 13是糖基; n为0或1; 条件是当R 1是乙基且n是0时,E,R 2,R 3和R 4不是全部H.导致喜树碱类似物的中间体化合物包括取代的三环化合物,其中 由融合在一起的环C,D和E组成。 制备类似物的方法涉及这种中间体与可变取代的被保护的α-氨基苯甲醛的缩合。