[(2S,3R,4aS,6R,7S,9S,10aR)-6-[2,2-bis(phenylsulfanyl)ethyl]-2-[[tert-butyl(diphenyl)silyl]oxymethyl]-2,9-dimethyl-3-tri(propan-2-yl)silyloxy-4,4a,6,7,8,9,10,10a-octahydro-3H-pyrano[3,2-b]oxocin-7-yl] (2S,3S)-3-[(3S,5R,7S,8R,9S,10S)-8-(methoxymethoxy)-9,10-dimethyl-3-(naphthalen-2-ylmethoxy)-1,6-dioxaspiro[4.5]decan-7-yl]-2-methyl-3-(naphthalen-2-ylmethoxy)propanoate 在
二氯二茂钛 、
magnesium 、
亚磷酸三乙酯 作用下,
以
四氢呋喃 为溶剂,
反应 1.0h,
以68%的产率得到tert-butyl-[[(1R,3S,5R,6S,8R,10R,12S)-14-[(1S,2S)-1-[(3S,5R,7S,8R,9S,10S)-8-(methoxymethoxy)-9,10-dimethyl-3-(naphthalen-2-ylmethoxy)-1,6-dioxaspiro[4.5]decan-7-yl]-1-(naphthalen-2-ylmethoxy)propan-2-yl]-6,10-dimethyl-5-tri(propan-2-yl)silyloxy-2,7,13-trioxatricyclo[10.4.0.03,8]hexadec-14-en-6-yl]methoxy]-diphenylsilane