4-氯苯甲醛 、
N-[(S)-2-Methyl-1-(3-methyl-5-oxo-4,5-dihydro-pyrazole-1-carbonyl)-propyl]-benzenesulfonamide 在
sodium acetate 、
溶剂黄146 作用下,
以50%的产率得到N-((S)-1-{4-[1-(4-Chloro-phenyl)-meth-(Z)-ylidene]-3-methyl-5-oxo-4,5-dihydro-pyrazole-1-carbonyl}-2-methyl-propyl)-benzenesulfonamide