4-(4,5-dihydro-1H-pyrazol-3-yl)-3-fluoro-phenol 、
(3,4-二甲氧基苯基)乙酰氯 以to give 2-(3,4-dimethoxy-phenyl)-1-[3-(4-hydroxy-3-methyl-phenyl)-4,5-dihydro-pyrazol-1-yl]-ethanone (9)的产率得到2-(3,4-dimethoxyphenyl)-1-(3-(2-fluoro-4-hydroxyphenyl)-4,5-dihydro-1H-pyrazol-1-yl)ethanone