申请人:Hoffmann-La Roche Inc.
公开号:US04851519A1
公开(公告)日:1989-07-25
Compounds of the formula ##STR1## wherein R.sup.1 is halogen, C.sub.1-4 -alkyl, halo-(C.sub.1-4 -alkyl) or C.sub.2-4 -alkanoyl, R.sup.2 is hydrogen, hydroxy, C.sub.1-4 alkoxy, C.sub.1-4 -alkylthio or phenyl-(C.sub.1-4 -alkoxy) or , when X is O, also acyloxy, R.sup.3 is hydrogen or C.sub.1-4 -alkyl, R.sup.4 is a carbocyclic group or a heterocyclic group, R.sup.5 is hydrogen or fluorine, m stands for zero, 1 or 2, X is O or NH and Y is a direct bond, --CH.dbd.CH--, --C.tbd.C-- or a group of the formula of --(Z).sub.n --A-- (a) in which A is a C.sub.1-8 alkylene group which is optionally substituted by one or two phenyl groups, Z is O, S, SO or SO.sub.2 and n stands for zero or 1, with the proviso that R.sup.1 is different from iodine, when R.sup.2 is hydroxy or benzoyloxy, R.sup.3 is hydrogen, R.sup.4 is unsubstituted phenyl, R.sup.5 is hydrogen, m stands for zero, X is O, and Y is a direct bond, and tautomers thereof, which possess antiviral activity and can therefore be used in the form of medicaments for the control and prevention of viral infections are described. The compounds of formula I can be prepared according to known methods.
式为##STR1##的化合物,其中R.sup.1是卤素,C.sub.1-4-烷基,卤代-(C.sub.1-4-烷基)或C.sub.2-4-酰基,R.sup.2是氢,羟基,C.sub.1-4烷氧基,C.sub.1-4-烷基硫醚或苯基-(C.sub.1-4-烷氧基),当X为O时,还可以是酰氧基,R.sup.3是氢或C.sub.1-4-烷基,R.sup.4是碳环基或杂环基,R.sup.5是氢或氟,m代表零、1或2,X是O或NH,Y是直接键,--CH.dbd.CH--,--C.tbd.C--或具有--(Z).sub.n--A--(a)式的基团,在该式中A是C.sub.1-8烷基烯基,可以选择地被一个或两个苯基取代,Z是O,S,SO或SO.sub.2,n代表零或1,但R.sup.1不同于碘时,当R.sup.2是羟基或苯甲酰氧基,R.sup.3是氢,R.sup.4是未取代的苯基,R.sup.5是氢,m代表零,X是O,Y是直接键,以及它们的互变异构体,具有抗病毒活性,因此可用作药物形式用于控制和预防病毒感染。根据已知方法可以制备式I的化合物。