Camptothecin analogues
    20.
    发明授权
    Camptothecin analogues 失效
    喜树碱类似物

    公开(公告)号:US5446047A

    公开(公告)日:1995-08-29

    申请号:US919188

    申请日:1992-07-23

    CPC分类号: C07D491/14 C07H17/00

    摘要: Substituted analogues 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, linear or branched alkyl, linear or branched alkylaryl, hydroxyalkyl, or aryl; 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, linear or branched alkyl, linear or branched alkylaryl, aryl, CO.sub.2 R, alkoxy, aryloxy, hydroxyalkyl, C-glycal, nitro, cyano, aminoalkoxy, Cl, F, Br, I, SR.sup.10, NR.sup.11 R.sup.12, or OR.sup.13 ; R is H, alkyl, aryl, alkylaryl, hydroxyalkyl, or hydroxyalkyl; R.sup.10, R.sup.11 and R.sup.12 are independently the same or different and are H, alkyl, aryl, alkylaryl, hydroxyalkyl, or acyl; 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 analogues involve condensation of such intermediates with variably substituted protected .alpha.-aminobenzaldehydes.

    摘要翻译: 具有一般结构的具有对癌细胞的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,直链或支链烷基,直链或支链烷基芳基,羟基烷基或芳基; R 5,R 6,R 7,R 8和R 9各自独立地相同或不同,为H,直链或支链烷基,直链或支链烷基芳基,芳基,CO 2 R,烷氧基,芳氧基,羟基烷基,C-缩醛,硝基,氰基,氨基烷氧基, Cl,F,Br,I,SR10,NR11R12或OR13; R是H,烷基,芳基,烷基芳基,羟烷基或羟烷基; R 10,R 11和R 12独立地相同或不同,为H,烷基,芳基,烷基芳基,羟基烷基或酰基; R13是糖基; n为0或1; 条件是当R 1为乙基且n为0时,E,R 2,R 3和R 4不全为H.导致喜树碱类似物的中间体化合物包含由稠合在一起的环C,D和E组成的取代的三环化合物 。 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。