6-(3-fluoro-4-methoxyphenyl)-4-methoxycarbonyl-2H-pyridazin-3-one   、                                                                                      
methanesulfonate   、                                                                                      
4-氟苯丙醇                                                                                                                                                                                                                                                                                                          以to yield the title compound as a yellow oil (yield: 90.1%)的产率得到6-(3-fluoro-4-methoxyphenyl)-2-[3-(4-fluorophenyl)propyl]-4-methoxycarbonyl-2H-pyridazin-3-one