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    • 9. 发明申请
    • COMPOUNDS USEFUL IN PREPARING CAMPTOTHECIN DERIVATIVES
    • 化合物可用于制备CAMPTOTHECIN衍生物
    • US20050197355A1
    • 2005-09-08
    • US10791198
    • 2004-03-02
    • Kevin Henegar
    • Kevin Henegar
    • A61K31/4545A61K31/4745
    • A61K31/4745A61K31/4545A61K2300/00
    • Novel compounds are provided having the formula and salts thereof, where R1 is hydrogen, an alkyl, aralkyl, hydroxymethyl, carboxymethyl, acyloxymethyl or trialkylsilyl group, or a group —CH2NR3R4 where N is a linking nitrogen atom and where (a) R3 and R4 are independently selected from hydrogen and alkyl, alkenyl, hydroxyalkyl and alkoxyalkyl groups; (b) R3 is hydrogen or an alkyl, alkenyl, hydroxyalkyl or alkoxyalkyl group, and R4 is —COR5 where R5 is hydrogen or an alkyl, alkenyl, hydroxyalkyl or alkoxyalkyl group; or (c) R3 and R4 taken together with the linking nitrogen atom form a saturated 3- to 7-member heterocyclic group. These compounds are useful intermediates in a process to prepare camptothecin derivatives including the anti-cancer drug irinotecan.
    • 提供了具有式及其盐的新化合物,其中R 1是氢,烷基,芳烷基,羟甲基,羧甲基,酰氧基甲基或三烷基甲硅烷基或基团-CH 2 其中N为连接氮原子,其中(a)R 3和R 4为H, 独立地选自氢和烷基,烯基,羟基烷基和烷氧基烷基; (b)R 3是氢或烷基,烯基,羟基烷基或烷氧基烷基,R 4是-COR 5,其中R SUP > 5是氢或烷基,烯基,羟基烷基或烷氧基烷基; 或(c)R 3和R 4与连接氮原子一起形成饱和的3-至7-元杂环基。 这些化合物在制备喜树碱衍生物的方法中是有用的中间体,包括抗癌药物伊立替康。