1-(3-(4-氨基苯基)-4,5-二氢-1H-吡唑-1-基)-2-(3,4-二甲氧基苯基)乙酮 、
甲基磺酰氯 在
crude residue 、
二氯甲烷 、
N-(4-{1-[2-(3,4-dimethoxy-phenyl)-acetyl]-4,5-dihydro-1H-pyrazol-3-yl}-phenyl)-methanesulfonamide 作用下,
以to give final compound N-(4-{1-[2-(3,4-dimethoxy-phenyl)-acetyl]-4,5-dihydro-1H-pyrazol-3-yl}-phenyl)-methane sulfonamide (22)的产率得到N-(4-{1-[2-(3,4-dimethoxy-phenyl)-acetyl]-4,5-dihydro-1H-pyrazol-3-yl}-phenyl)-methanesulfonamide