[rac]-3-(4-hydroxy-naphthalen-1-yl)-2-methoxy-propionic acid methyl ester   、                                                                                      [Rac]-2-ethoxy-3-(4-{2-[2-(2-ethoxy-4-fluoro-phenyl)-5-methyl-oxazol-4-yl]-ethoxy-}-benzo[b]thiophen-7-yl)-propionic acid   、                                                                                      
三苯基膦   、                                                                                      
偶氮二甲酸二乙酯                                                                                                                                                                                                                                                                                                          以to yield [rac]-3-(4-{2-[2-(2-ethoxy-4-fluoro-phenyl)-5-methyl-oxazol-4-yl]-ethoxy}-naphthalen-1-yl)-2-methoxy-propionic acid methyl ester, which的产率得到[Rac]-3-(4-{2-[2-(2-ethoxy-4-fluoro-phenyl)-5-methyl-oxazol-4-yl]-ethoxy}-naphthalen-1-yl)-2-methoxy-propionic acid methyl ester