Pyrimidine nucleoside derivatives having anti-tumor activity, their preparation and use
申请人:Sankyo Company Limited
公开号:EP0536936A1
公开(公告)日:1993-04-14
Compounds of formula (I):
[in which: R¹, R² and R³ are the same or different and each represents a hydrogen atom, an optionally substituted alkanoyl group or an alkenylcarbonyl group, provided that at least one of R¹, R² and R³ represents an unsubstituted alkanoyl group having from 5 to 24 carbon atoms, said substituted alkanoyl group or said alkenylcarbonyl group; and one of R⁴ and R⁵ represents a hydrogen atom and the other represents a cyano group]; have valuable anti-tumour activity.
式子(I)的化合物:[其中:R¹、R²和R³相同或不同,每个代表氢原子、可选取代的脂肪酰基团或烯基羰基团,前提是至少有一个R¹、R²和R³代表有5到24个碳原子的未取代脂肪酰基团,或者是所述取代的脂肪酰基团或所述烯基羰基团;R⁴和R⁵中的一个代表氢原子,另一个代表氰基],具有有价值的抗肿瘤活性。