6-(2,4-difluorophenyl)-2-isobutyl-4-phthalimidomethyl-2H-pyridazin-3-one 、
4-carboxy-2-(4-chlorocinnamyl)-6-(4-fluoro-3-methylphenyl)-2H-pyridazin-3-one 以to yield the title compound as slightly yellow needles (yield: 17.2%)的产率得到2-(4-chlorocinnamyl)-6-(4-fluoro-3-methylphenyl)-4-hydroxymethyl-2H-pyridazin-3-one