(Z,2R,3S,8R,9R)-9-tert-butyldiphenylsilanyloxymethyl-8-chloro-2-ethyl-3-hydroxy-2,3,4,7,8,9-hexahydro-oxonine 在
四溴化碳 、
三辛基膦 作用下,
以
甲苯 为溶剂,
以65%的产率得到(Z,2R,3R,8R,9R)-9-tert-butyldiphenylsilanyloxymethyl-3-bromo-8-chloro-2-ethyl-2,3,4,7,8,9-hexahydro-oxonine