申请人:Pfizer Inc.
公开号:US05912244A1
公开(公告)日:1999-06-15
A compound of the formula: ##STR1## or a pharmaceutically acceptable salt thereof, wherein X is O, S or NH; R and R.sup.1 are each independently selected from H and C.sub.1 -C.sub.4 alkyl or taken together represent C.sub.2 -C.sub.6 alkylene; R.sup.2 is H or C.sub.1 -C.sub.4 alkyl; R.sup.3 is a 6-membered heterocyclic ring containing 2N hetero-atoms, said ring being linked to X by a ring carbon atom, optionally benzo-fused and optionally substituted, including in the benzo-fused portion, by C.sub.1 -C.sub.6 alkyl, hydroxy, --OR.sup.5, halo, --S(O).sub.m R.sup.5, oxo, amino, --NHR.sup.5, --N(R.sup.5).sub.2, cyano, --CO.sub.2 R.sup.5, --CONH.sub.2, --CONHR.sup.5 or --CON(R.sup.5).sub.2, with the proviso that R.sup.3 is not an N--(C.sub.1 -C.sub.6 alkyl)pyridonyl group; R.sup.4 is phenyl substituted by a hydroxy group and optionally further substituted by 1 or 2 substitutents each independently selected from hydroxy, C.sub.1 -C.sub.6 alkyl, --OR.sup.5, halo, cyano and nitro; R.sup.5 is C.sub.1 -C.sub.6 alkyl; R.sup.6 is --OR.sup.5, --NHR.sup.5, --N(R.sup.5).sub.2, --SR.sup.5 or --NHR.sup.9 ; R.sup.7 is cyano; R.sup.8 is --OR.sup.5, --NHR.sup.5, --N(R.sup.5).sub.2, or --NHR.sup.9 ; R.sup.9 is phenyl optionally substituted by C.sub.1 -C.sub.6 alkyl, hydroxy, --OR.sup.5, halo, cyano or nitro; and m is 0, 1 or 2.
该化合物的结构式为:##STR1##或其药学上可接受的盐,其中X为O、S或NH;R和R.sup.1分别独立选择自H和C.sub.1-C.sub.4烷基,或者一起代表C.sub.2-C.sub.6烷基;R.sup.2为H或C.sub.1-C.sub.4烷基;R.sup.3为含有2N杂原子的6元杂环,该环通过一个环碳原子与X连接,可选择地苯并联和可选择地被C.sub.1-C.sub.6烷基、羟基、--OR.sup.5、卤素、--S(O).sub.mR.sup.5、酮基、氨基、--NHR.sup.5、--N(R.sup.5).sub.2、氰基、--CO.sub.2R.sup.5、--CONH.sub.2、--CONHR.sup.5或--CON(R.sup.5).sub.2取代,条件是R.sup.3不是N--(C.sub.1-C.sub.6烷基)吡啶基;R.sup.4为苯基,被羟基取代,可选择地进一步被独立选择自羟基、C.sub.1-C.sub.6烷基、--OR.sup.5、卤素、氰基和硝基的1或2个取代基取代;R.sup.5为C.sub.1-C.sub.6烷基;R.sup.6为--OR.sup.5、--NHR.sup.5、--N(R.sup.5).sub.2、--SR.sup.5或--NHR.sup.9;R.sup.7为氰基;R.sup.8为--OR.sup.5、--NHR.sup.5、--N(R.sup.5).sub.2或--NHR.sup.9;R.sup.9为苯基,可选择地被C.sub.1-C.sub.6烷基、羟基、--OR.sup.5、卤素、氰基或硝基取代;m为0、1或2。