3-(p-Hydroxy-phenyl)-Δ2-pyrazolin 、
2,3-二甲氧基苯乙酸 在
acetonitrile-water 、
2-(2,3-dimethoxy-phenyl)-1-[3-(4-hydroxy-phenyl)-4,5-dihydro-pyrazol-1-yl]-ethanone 作用下,
以to give the final compound 2-(2,3-Dimethoxy-phenyl)-1-[3-(4-hydroxy-phenyl)-4,5-dihydro-pyrazol-1-yl]-ethanone (35)的产率得到2-(2,3-dimethoxy-phenyl)-1-[3-(4-hydroxy-phenyl)-4,5-dihydro-pyrazol-1-yl]-ethanone