申请人:SEUREF A.G.
公开号:EP0349919A2
公开(公告)日:1990-01-10
(1,4-diaryl-pyrazol-3-yl)-acetic acids of the formula I
wherein Ar and Ar′, which can be the same or differen, represen a phenyl group optionally substituted with 1 to 3 halogen atoms, C₁-C₄ alkyl or C₁-C₄ alkoxy groups, are prepared by reacting β-styryl amines with compounds of formula ClCO-CH₂-A (wherein A represent a CN, COOR or CONR¹R² group, R being an alkyl, benzyl or benzohydryl group and R¹and R² being H or an alkyl, benzyl or benzohydryl group).
式 I 的(1,4-二芳基吡唑-3-基)乙酸
其中 Ar 和 Ar′(可以相同或不同)代表任选被 1 至 3 个卤素原子、C₁-C₄ 烷基或 C₁-C₄烷氧基取代的苯基、将 β-苯乙烯胺与式 ClCO-CH₂-A 的化合物(其中 A 代表 CN、COOR 或 CONR¹R²,R 为烷基、苄基或苯甲酰基,R¹和 R² 为 H 或烷基、苄基或苯甲酰基)反应制备。