Disclosed is a 2'-deoxy-5-fluorouridine derivative of the formula ##STR1## wherein one of R.sub.1 and R.sub.2 is a benzyl group which may optionally have substituent selected from the group consisting of C.sub.1 -C.sub.6 alkyl group, C.sub.1 -C.sub.6 alkoxy group, C.sub.1 -C.sub.3 halogenated alkyl group, halogen atom, hydroxyl group and nitro group on the phenyl ring, and the other constitutes an amino acid residue, or a salt thereof. The compounds are useful for treating cancer.
揭示的是公式##STR1##的2'-脱氧-
5-氟尿苷衍
生物,其中R.sub.1和R.sub.2中的一个是苯甲基基团,该基团可以选择从C.sub.1-C.sub.6烷基基团,C.sub.1-C.sub.6烷氧基基团,C.sub.1-C.sub.3卤代烷基基团,卤素原子,羟基和硝基基团中的取代基,另一��构成
氨基酸残基,或其盐。这些化合物可用于治疗癌症。