2-but-3-enyloxy-3-{3,5-dimethyl-4-[2-(5-methyl-2-phenyl-oxazol-4-yl)-ethoxy]-phenyl}-3-hydroxy-propionic acid ethyl ester 、
三乙胺 、
甲基磺酰氯 在
碳酸氢钠 、
二氯甲烷 、
Sodium sulfate-III 作用下,
以
二氯甲烷 为溶剂,
以to afford crude 2-but-3-enyloxy-3-{3,5-dimethyl-4-[2-(5-methyl-2-phenyl-oxazol-4-yl)-ethoxy]-phenyl}-3-methanesulfonyloxy-propionic acid ethyl ester which的产率得到2-but-3-enyloxy-3-{3,5-dimethyl-4-[2-(5-methyl-2-phenyl-oxazol-4-yl)-ethoxy]-phenyl}-3-methanesulfonyloxy-propionic acid ethyl ester