Derivatives of purine, process for their preparation and a pharmaceutical preparation
申请人:Medivir Aktiebolag
公开号:EP0343133A1
公开(公告)日:1989-11-23
Antivirally active compounds of the formula
wherein:
R1 is hydrogen, hydroxy, mercapto or amino;
R2 is hydrogen, hydroxy, fluoro, chloro or amino;
R3 and R4 are independently selected from
amino, hydroxy
or an ether or ester residue thereof, or
R3 together with R4 is
wherein
M is hydrogen or a pharmaceutically acceptable counterion; and n is 1 or 2; with the proviso that, when R2 is amino and R3 and R4 are hydroxy, R1 is not hydroxy and in addition, when n = 1, R1 is not hydrogen, and pharmaceutically acceptable salts thereof; processes and preparation of said compounds, a pharmaceutical composition comprising said compounds, methods for treatment of virus infections as well as use of compounds of the formula I without the proviso for the manufacture of a medicament for treatment of AIDS.
式中的抗病毒活性化合物
其中
R1 是氢、羟基、巯基或氨基;
R2 是氢、羟基、氟、氯或氨基;
R3 和 R4 独立选自
氨基、羟基
或其醚或酯残基,或
R3 连同 R4 为
其中
M是氢或药学上可接受的反离子;n是1或2;但条件是,当R2是氨基,R3和R4是羟基时,R1不是羟基,此外,当n=1时,R1不是氢,及其药学上可接受的盐;所述化合物的工艺和制备方法、包含所述化合物的药物组合物、治疗病毒感染的方法以及使用式I化合物(不含但条件)制造治疗艾滋病的药物。