sodium hydroxide   、                                                                                      
methyl 3-[3'-(3-heptyl-1-methylureido)-2-(3,3,3-trifluoropropoxy)biphenyl-4-yl]propanoate                                                                                                                                                              在
                                                                                                                                                                                 Diisopropyl ether pentane   、                                                                                                  3-[3'-(3-heptyl-1-methylureido)-2-(3,3,3-trifluoropropoxy)biphenyl-4-yl]propanoic acid                                                                                                                                  作用下,
                                                                                                                以
                                                                                         tetrahydrofuran methanol                                                                                  为溶剂,
                                                                                                                                                    反应 2.0h,
                                                                                                                以are obtained in the form of a white powder (m.p.=90° C.)的产率得到3-[3'-(3-heptyl-1-methylureido)-2-(3,3,3-trifluoropropoxy)biphenyl-4-yl]propanoic acid