申请人:Nissan Chemical Industries Ltd.
公开号:US04892947A1
公开(公告)日:1990-01-09
A 3(2H)pyridazinone of the formula: ##STR1## wherein R.sub.1 is hydrogen, methyl, C.sub.3 -C.sub.6 alkenyl, C.sub.5 or C.sub.6 cycloalkyl, benzyl, phenyl, --(CH.sub.2).sub.m CO.sub.2 R.sub.3 (wherein R.sub.3 is hydrogen or C.sub.1 -C.sub.5 alkyl, and m is an integer of from 1 to 4), --(CH.sub.2).sub.n A (wherein A is --OH or --N(R.sub.4).sub.2 wherein R.sub.4 is C.sub.1 -C.sub.3 alkyl, and n is an integer of from 2 to 6) or --CH.sub.2 CF.sub.3 ; R.sub.2 is chlorine or bromine; each of Y.sub.1 and Y.sub.2 which may be the same or different, is hydrogen, C.sub.1 -C.sub.5 alkyl, C.sub.2 -C.sub.8 alkenyl, halogen, --OR.sub.5 (wherein R.sub.5 is hydrogen, C.sub.1 -C.sub.8 alkyl or ##STR2## wherein q is an integer of from 1 to 4), --CO.sub.2 R.sub.6 (wherein R.sub.6 is hydrogen or C.sub.1 -C.sub.5 alkyl), --N(R.sub.7).sub.2 (wherein R.sub.7 is C.sub.1 -C.sub.4 alkyl) or --SR.sub.8 (wherein R.sub.8 is C.sub.1 -C.sub.4 alkyl); and Y.sub.3 is C.sub.1 -C.sub.5 alkyl, C.sub.2 -C.sub.8 alkenyl, halogen, --OR.sub.5 (wherein R.sub.5 is as defined above), --CO.sub.2 R.sub.6 (wherein R.sub.6 is as defined above), --N(R.sub.7).sub.2 (wherein R.sub.7 is as defined above) or --SR.sub.8 (wherein R.sub.8 is as defined above), or a pharmaceutically acceptable salt thereof.
该公式中的3-(2H)吡啶并嗪酮如下:其中R₁是氢、甲基、C₃-C₆烯基、C₅或C₆环烷基、苄基、苯基、--(CH₂)ₘCO₂R₃(其中R₃是氢或C₁-C₅烷基,m为1至4之间的整数),--(CH₂)ₙA(其中A为--OH或--N(R₄)₂,其中R₄为C₁-C₃烷基,n为2至6之间的整数)或--CH₂CF₃;R₂是氯或溴;Y₁和Y₂分别为氢、C₁-C₅烷基、C₂-C₈烯基、卤素、--OR₅(其中R₅为氢、C₁-C₈烷基或所述的##STR2##其中q为1至4之间的整数),--CO₂R₆(其中R₆为氢或C₁-C₅烷基),--N(R₇)₂(其中R₇为C₁-C₄烷基)或--SR₈(其中R₈为C₁-C₄烷基);Y₃为C₁-C₅烷基、C₂-C₈烯基、卤素、--OR₅(其中R₅如上所定义),--CO₂R₆(其中R₆如上所定义),--N(R₇)₂(其中R₇如上所定义)或--SR₈(其中R₈如上所定义),或其药学上可接受的盐。