申请人:Hoffmann-La Roche Inc.
公开号:US05010060A1
公开(公告)日:1991-04-23
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, 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.
化合物的化学式为##STR1##
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-烷基硫基或苯基-(C.sub.1-4-烷氧基),或者当X是O时,也可以是酰氧基,R.sup.3是氢或C.sub.1-4-烷基,R.sup.4是一个碳环基或杂环基,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--或式为--(Z).sub.n--A--(a)的基团,其中A是C.sub.1-8-烷基,可选地被一个或两个苯基取代,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,因此可以用作药物的形式,用于控制和预防病毒感染。化合物I的制备可以按照已知方法进行。