申请人:NIPPON KAYAKU KABUSHIKI KAISHA
公开号:EP0191303A1
公开(公告)日:1986-08-20
Disclosed is a compound of the formula:
wherein R' is hydrogen, halogen or methyl, R' is hydrogen, halogen or lower alkyl, R3 is lower alkyl which may be substituted by halogen or methylsulfonyl, benzyl or phenyl which may be substituted by halogen or nitro, R4 is hydrogen; lower alkyl which may be substituted by carboxy or lower alkoxycarbonyl; lower alkenyl; lower alkynyl; methylsulfonyl or benzyl which may be substituted by halogen, X is hydrogen, halogen or C1 ~ C2 - alkyl, Y is C1 ~ C2 - alkyl, X may make -(CH2)3-or -(CH2)4- together with Y, W is halogen.
本发明公开了一种式如下的化合物
其中R'是氢、卤素或甲基,R'是氢、卤素或低级烷基,R3是可被卤素或甲磺酰取代的低级烷基、可被卤素或硝基取代的苄基或苯基,R4是氢;可被羧基或低级烷氧基羰基取代的低级烷基;低级烯基;低级炔基;可被卤素取代的甲磺酰基或苄基,X 为氢、卤素或 C1 ~ C2 - 烷基,Y 为 C1 ~ C2 - 烷基,X 可与 Y 构成 -(CH2)3- 或 -(CH2)4- ,W 为卤素。