申请人:Nissan Chemical Industries Ltd.
公开号:US05011839A1
公开(公告)日:1991-04-30
A 3(2H)pyridazinone of the formula: ##STR1## wherein R.sub.1 is hydrogen, 2-propenyl, or straight chained or branched C.sub.1 -C.sub.4 alkyl; each of R.sub.2 and R.sub.3 which may be the same or different, is hydrogen, or straight chained or branched C.sub.1 -C.sub.3 alkyl; X is chlorine, or bromine; Y is hydrogen, halogen, nitro, amino, or --AR.sub.4 wherein A is oxygen, or sulfur, and R.sub.4 is hydroen, straight chained, branched or cyclic C.sub.1 -C.sub.8 alkyl, ##STR2## wherein R.sub.5 is hydrogen, or straight chained or branched C.sub.1 -C.sub.4 alkyl; and Ar is ##STR3## wherein each Z.sub.1 and Z.sub.2 which may be the same or different, is hydrogen, halogen, straight or branched C.sub.1 -C.sub.4 alkyl, or --OR.sub.6 wherein R.sub.6 is straight or branched C.sub.1 -C.sub.4 alkyl, and B is oxygen, sulfur, or --N.dbd.C-- (to form a quinoline or pyridine ring); or a pharamaceutically acceptable salt thereof.
一种化学物质的化学式为:##STR1## 其中 R.sub.1 是氢、2-丙烯基或直链或支链的 C.sub.1 -C.sub.4 烷基;R.sub.2 和 R.sub.3 中的每一个可以相同也可以不同,是氢或直链或支链的 C.sub.1 -C.sub.3 烷基;X 是氯或溴;Y 是氢、卤素、硝基、氨基或--AR.sub.4,其中 A 是氧或硫,R.sub.4 是氢、直链、支链或环状的 C.sub.1 -C.sub.8 烷基,##STR2## 其中 R.sub.5 是氢或直链或支链的 C.sub.1 -C.sub.4 烷基;Ar 是 ##STR3## 其中每个 Z.sub.1 和 Z.sub.2 可以相同也可以不同,是氢、卤素、直链或支链的 C.sub.1 -C.sub.4 烷基,或--OR.sub.6,其中 R.sub.6 是直链或支链的 C.sub.1 -C.sub.4 烷基,B 是氧、硫或--N.dbd.C--(形成喹啉或吡啶环);或其药用盐。