Camptothecin derivatives of camptothecin of formula (I), wherein the groups R1, R2 and R3 are as defined in the description are disclosed. The compounds of formula (I) are endowed with antitumor activity and show a good therapeutic index. Processes for the preparation of the compounds of formula (I) and their use in the preparation of medicaments useful in the treatment of tumors, viral infections and antiplasmodium falciparum are also disclosed.
本文披露了公式(I)的
喜树碱衍
生物,其中R1,R2和R3基团的定义如描述中所述。公式(I)的化合物具有抗肿瘤活性,并显示出良好的治疗指数。本文还披露了制备公式(I)化合物的方法以及它们在制备用于治疗肿瘤、病毒感染和疟原虫的药物中的应用。