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.
化合物的公式为##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)或当X为O时,也可以是酰氧基,R.sup.3是氢或C.sub.1-4-烷基,R.sup.4是一个碳环或杂环基,R.sup.5是氢或
氟,m表示零,1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,在该基团中,A是C.sub.1-8烷基,该烷基可以选用一个或两个苯基置换,Z是O,S,SO或SO.sub.2,n表示零或1,但R.sup.1不同于
碘,当R.sup.2为羟基或苯甲酰氧基,R.sup.3为氢,R.sup.4为未取代苯基,R.sup.5为氢,m为零,X为O,Y为直接键时,它们的互变异构体具有抗病毒活性,因此可以用作药物形式用于控制和预防病毒感染。式I的化合物可以按照已知方法制备。