2-[(E,3R,4R)-8-bromo-6-chloro-4-[(4-methoxyphenyl)methoxy]oct-6-en-3-yl]oxy-N,N-dimethylacetamide 在
lithium hexamethyldisilazane 作用下,
以
四氢呋喃 为溶剂,
反应 1.0h,
以80%的产率得到(2R,3R,5E,8R)-5-chloro-2-ethyl-3-[(4-methoxyphenyl)methoxy]-N,N-dimethyl-3,4,7,8-tetrahydro-2H-oxocine-8-carboxamide