2-(三甲基硅烷基)乙氧甲基氯 、
(2S,3R,9S)-10-[(2R,4S,5S,6S)-6-((R)-3-Benzyloxy-2-hydroxy-propyl)-4-(tert-butyl-dimethyl-silanyloxy)-2-methoxy-5-vinyl-tetrahydro-pyran-2-yl]-3,9-bis-(tert-butyl-dimethyl-silanyloxy)-2-ethyl-1-phenyl-decane-1,5-dione 在
N,N-二异丙基乙胺 作用下,
以59%的产率得到(2S,3R,9S)-10-[(2R,4S,5S,6S)-6-[(R)-3-Benzyloxy-2-(2-trimethylsilanyl-ethoxymethoxy)-propyl]-4-(tert-butyl-dimethyl-silanyloxy)-2-methoxy-5-vinyl-tetrahydro-pyran-2-yl]-3,9-bis-(tert-butyl-dimethyl-silanyloxy)-2-ethyl-1-phenyl-decane-1,5-dione