1-(4-氨基苯基)-3-甲基-1H-吡唑-5(4h)-酮 、
三氟乙酸酐 以Yield: 1.5 g of N-(4-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)phenyl)acetamide (65% of theory), oil obtained analogously from 2-(4-aminophenyl)-5-methyl-2,4-dihydro-3-pyrazolone and trifluoroacetic anhydride的产率得到N-(4-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)phenyl)acetamide