巴氯芬

4-(4-chlorophenyl)-1,5-dihydro-2H-pyrrol-2-one

3-(4-chloro-phenyl)-3-cyano-propanoic acid methyl ester

4-(4-chlorophenyl)-2-oxo-2,5-dihydropyrrole-1-carboxylic acid tert-butyl ester

三氟乙酸酐