5-[(E)-1-Methyl-2-(3-methyl-benzofuran-2-yl)-vinyl]-1-(4-sulfamoyl-phenyl)-1H-pyrazole-3-carboxylic acid ethyl ester 在
氢氧化钾 作用下,
以
乙醇 为溶剂,
以62%的产率得到5-[(E)-1-Methyl-2-(3-methyl-benzofuran-2-yl)-vinyl]-1-(4-sulfamoyl-phenyl)-1H-pyrazole-3-carboxylic acid