ethyl (S)-3-[4-[2-[5-methyl-2-(4-methylphenyl)-1,3-oxazol-4-yl]ethoxy]phenyl]-2-(4-fluorobenzylamino)propionate 、
2,3-二氟苯甲醛 以In the same manner as in Example 7, 253.2 mg of the title compound was obtained as colorless oil from 510.0 mg of Referential Compound 3 and 191 μL of 2,3-difluorobenzaldehyde的产率得到methyl (S)-3-[4-[2-(5-methyl-2-phenyl-1,3-oxazol-4-yl)ethoxy]phenyl]-2-(2,3-difluorobenzylamino)propionate