(RS)-(2,6-difluoro-4-methoxy-phenyl)-ethoxy-acetic acid 、
4-aminomethyl-3-hydroxy-benzonitrile hydrochloride 以to give (RS)-N-(4-cyano-2-hydroxy-benzyl)-2-(2,6-difluoro-4-methoxy-phenyl)-2-ethoxy-acetamide的产率得到(RS)-N-(4-cyano-2-hydroxy-benzyl)-2-(2,6-difluoro-4-methoxy-phenyl)-2-ethoxy-acetamide