A cyclopropane derivative of formula (I)
wherein B1 is a purine or pyrimidine residue, R1 and R2 are, independently, hydrogen or a protecting group for hydroxyl and each of k, m and n represents, independently, an integer of 1 or 2 is useful for its antiviral effect.
式 (I) 的
环丙烷衍
生物
其中 B1 是
嘌呤或
嘧啶残基,R1 和 R2 分别是氢或羟基的保护基团,k、m 和 n 分别是 1 或 2 的整数。