申请人:Hoffmann-La Roche Inc.
公开号:US04886785A1
公开(公告)日:1989-12-12
Compounds of the formula ##STR1## wherein A is C.sub.1-8 -alkylene, R.sup.1 is halogen, C.sub.1-4 -alkyl or halo-(C.sub.1-4 -alkyl), R.sup.2 is hydrogen, hydroxy or acyloxy, R.sup.3 is hydrogen or C.sub.1-4 -alkyl, R.sup.4 is aryl or aryloxy and X is O or NH, and tautomers thereof are described. The compounds of formula I and their tautomers possess antiviral activity and can be used in the form of medicaments for the control and prevention of viral infections.
该公式的化合物为##STR1##其中A为C.sub.1-8-烷基,R.sup.1为卤素,C.sub.1-4-烷基或卤代-(C.sub.1-4-烷基),R.sup.2为氢,羟基或酰氧基,R.sup.3为氢或C.sub.1-4-烷基,R.sup.4为芳基或芳氧基,X为O或NH,以及它们的互变异构体。公式I的化合物及其互变异构体具有抗病毒活性,并可用作药物形式,用于控制和预防病毒感染。