申请人:MITSUI CHEMICALS, INC.
公开号:EP0916656A2
公开(公告)日:1999-05-19
A compound represented by the following formula (12) useful as an intermediate for production of drug or agricultural chemical:
(wherein R21 to R25 are each independently a hydrogen atom, a hydroxyl group, a halogen atom, an alkyl group of 1 to 4 carbon atoms, an alkoxy group of 1 to 4 carbon atoms, a perfluoroalkyl group of 1 to 4 carbon atoms, a cyano group, a nitro group, an amino group, a carboxyl group, a thiol group, an alkylthio group of 1 to 4 carbon atoms or a carbamoyl group) can be produced by reacting a compound represented by the formula (13):
(wherein R21 to R25 have the same definitions as given above) with 1,1-cyclopropanedicarboxylic acid. The compound of the formula (12) is useful as a raw material for production of a pyrrolidinone compound useful as an active ingredient of drug.
由下式(12)代表的化合物,可用作生产药物或农业化学品的中间体:
(其中 R21 至 R25 各自独立地为氢原子、羟基、卤素原子、1 至 4 个碳原子的烷基、1 至 4 个碳原子的烷氧基、1 至 4 个碳原子的全氟烷基、氰基、硝基、氨基、羧基、硫醇基、1 至 4 个碳原子的烷硫基或氨基甲酰基)可通过式(13)代表的化合物反应制得:
(其中 R21 至 R25 的定义与上述相同)与 1,1-环丙烷二羧酸反应制得。式(12)化合物可用作生产可用作药物活性成分的吡咯烷酮化合物的原料。