申请人:Glaxo Wellcome Inc.
公开号:US05559235A1
公开(公告)日:1996-09-24
The present invention relates to water soluble, camptothecin derivatives of formula (I), ##STR1## wherein: 1) R.sup.1 and R.sup.2 represent independently, hydrogen, lower alkyl, C.sub.3-7)cycloalkyl, C.sub.3-7)cycloalkyl lower alkyl, lower alkenyl, hydroxy lower alkyl, lower alkoxy lower alkyl; ii) R.sup.1 represents hydrogen, lower alkyl, C.sub.3-7)cycloalkyl, C.sub.3-7)cycloalkyl lower alkyl, lower alkenyl, hydroxy lower alkyl or lower alkoxy lower alkyl, and R.sup.2 represents --COR.sup.3, wherein: R.sup.3 represents hydrogen, lower alkyl, perhalo-lower alkyl, C.sub.3-7)cycloalkyl, C.sub.3-7)cycloalkyl lower alkyl, lower alkenyl, hydroxy lower alkyl, lower alkoxy or lower alkoxy lower alkyl; or iii) R.sup.1 and R.sup.2 taken together with the linking nitrogen form a saturated 3 to 7 atom heterocyclic group of formula (IA) ##STR2## wherein: Y represents O, S, SO, SO.sub.2, CH.sub.2 or NR.sup.4 wherein: R.sup.4 represents hydrogen, lower alkyl, perhalo lower alkyl, aryl, aryl substituted with one or more lower alkyl, lower alkoxy, halogen, nitro, amino, lower alkyl amino, perhalo-lower alkyl, hydroxy lower alkyl, lower alkoxy lower alkyl groups or; --COR.sup.5, wherein: R.sup.5 represents hydrogen, lower alkyl, perhalo-lower alkyl, lower alkoxy, aryl, aryl substituted with one or more lower alkyl, perhalo-lower alkyl, hydroxy lower alkyl, lower alkoxy lower alkyl groups or; the pharmaceutically acceptable salts thereof; their use in the treatment of tumors and methods of their preparation.
本发明涉及公式(I)的水溶性喜树碱衍生物,其中:
1)R1和R2分别独立地表示氢、低碳基、C3-7环烷基、C3-7环烷基低碳基、低烯基、羟基低碳基、低烷氧基低碳基;
ii)R1表示氢、低碳基、C3-7环烷基、C3-7环烷基低碳基、低烯基、羟基低碳基或低烷氧基低碳基,R2表示--COR3,其中:R3表示氢、低碳基、全卤低碳基、C3-7环烷基、C3-7环烷基低碳基、低烯基、羟基低碳基、低烷氧基或低烷氧基低碳基;
或iii)R1和R2与连接氮一起形成公式(IA)的饱和3至7原子杂环基,其中:Y表示O、S、SO、SO2、CH2或NR4,其中:R4表示氢、低碳基、全卤低碳基、芳基、芳基上取代一个或多个低碳基、低烷氧基、卤素、硝基、氨基、低烷基氨基、全卤低碳基、羟基低碳基、低烷氧基低碳基基团或;--COR5,其中:R5表示氢、低碳基、全卤低碳基、低烷氧基、芳基、芳基上取代一个或多个低碳基、全卤低碳基、羟基低碳基、低烷氧基低碳基基团或;其药学上可接受的盐;它们在治疗肿瘤方面的用途和制备方法。