Antiviral activity is exhibited by compounds having the formula
or a pharmaceutically acceptable salt thereof wherein R1 is a purinyl, substituted purinyl, pyrimidinyl, or substituted pyrimidinyl, R6 is -OH, -CH20H, -OP03H2, -CH2-O-P03H2,
or
and R7 is hydrogen, -P03H2, or
抗病毒活性由具有以下结构的化合物展示:
或其药用可接受盐,其中R1是
嘌呤基、取代
嘌呤基、
嘧啶基或取代
嘧啶基,R6是-OH、- 0H、-OP03H2、-
CH2-O-P03H2,
或
而R7是氢、-P03H2,或