(2R,3R,4S,8S)-8-[(4S,5S,6S)-6-((S)-2-Benzyloxy-1-methyl-ethyl)-2,2,5-trimethyl-[1,3]dioxan-4-yl]-1-(tert-butyl-diphenyl-silanyloxy)-3-methoxy-2,4-dimethyl-nonan-5-ol 在
lithium di-t-butylbiphenylide 、
lithium 作用下,
以
四氢呋喃 为溶剂,
反应 4.0h,
以90%的产率得到(2S,3S,4S,5S,6S,9RS,10S,11R,12R)-13-tert-butyldiphenylsilyloxy-3,5-isopropylidenedioxy-11-methoxy-2,4,6,10,12-pentamethyl-1,9-tridecanediol