申请人:NIPPON KAYAKU CO., LTD.
公开号:EP0172545A1
公开(公告)日:1986-02-26
Disclosed is the compound of the formula:
wherein X is oxygen, sulfur or
R, is 3-pyridyl or 4-pyridyl, R2 is C1~C12-alkyl; C3- or C4-alkenyl; C5- or C6-cycloalkyl which may be substituted by C,- or C2-alkyl; pyridyl; pyridylmethyl; phenethyl cyanoalkyl having 1 or 2 carbon atoms; methoxyethyl; 1-methylmethoxypropyl; phenyl; phenyl which is substituted by one or more of C1~C4-alkyl, C1~C4-alkoxy, nitro, halogen, trifluoromethyl, allyl and methoxycarbonyl; benzyl; benzyl which is substituted by one or more of methyl, nitro, methoxy and chloro; a-methylbenzyl; C1~C6-alkyl which is substituted by halogen when X is oxygen or
C2- or C3-alkyl which is substituted by dimethylamino, furfuryl or thienylmethyl; R3 is hydrogen, C1~C4-alkyl, cyanomethyl, methoxycarbonylmethyl, or 1-propoxycarbonylmethyl.
所公开的是式中的化合物:
其中 X 是氧、硫或
R,是 3-吡啶基或 4-吡啶基,R2 是 C1~C12-烷基;C3-或 C4-烯基;可被 C,- 或 C2-烷基取代的 C5-或 C6-环烷基;吡啶基;吡啶甲基;具有 1 或 2 个碳原子的苯乙基氰基烷基;甲氧基乙基;1-甲基甲氧基丙基;苯基;被 C1~C4-烷基、C1~C4-烷氧基、硝基、卤素、三氟甲基、烯丙基和甲氧基羰基中的一个或多个取代的苯基; 苄基;被甲基、硝基、甲氧基和氯中的一个或多个取代的苄基;a-甲基苄基;当 X 为氧时被卤素取代的 C1~C6-烷基,或
R3 是氢、C1~C4-烷基、氰基甲基、甲氧羰基甲基或 1-丙氧羰基甲基。