申请人:BEECHAM GROUP PLC
公开号:EP0095294A1
公开(公告)日:1983-11-30
A compound of formula (I):
or a pharmaceutically acceptable salt or ester thereof, in which Y is a hydrogen or halogen atom, preferably a bromine atom, and each of R1, R2 and R3 is a hydrogen atom; an acyl radical of the formula
in which X is a C1-12 alkyl group an optionally substituted phenyl, or optionally substituted benzyl group, or a carboxy group of the formula
in which Z is a branched or straight chain alkylene radical having from 1 to 4 carbon atoms in the chain; an optionally substituted C1-12 alkoxycarbonyl group; an optionally substituted C3.12 alkenyloxycarbonyl group; an optionally substituted phenoxycarbonyl group; or an optionally substituted phenyl C1-6 alkoxycarbonyl group; provided at least one of R1, R2 and R3 is an optionally substituted alkoxycarbonyl, optionally substituted alkenyloxycarbonyl, optionally substituted phenoxycarbonyl or optionally substituted phenyl C1-6 alkoxycarbonyl group, is useful in treating virus infections.
式(I)化合物
或其药学上可接受的盐或酯,其中 Y 是氢原子或卤素原子,最好是溴原子,R1、R2 和 R3 各为氢原子; 式中的酰基
其中 X 是 C1-12 烷基、任选取代的苯基、或任选取代的苄基、或式中的羧基。
其中 Z 是链上有 1 至 4 个碳原子的支链或直链亚烷基;任选取代的 C1-12 烷氧基羰基;任选取代的 C3.12 烯氧基羰基;任选取代的苯氧基羰基;或任选取代的苯基 C1-6 烷氧基羰基;条件是 R1、R2 和 R3 中至少有一个是任选取代的烷氧基羰基、任选取代的烯氧基羰基、任选取代的苯氧基羰基或任选取代的苯基 C1-6 烷氧基羰基。