(2R,3R,4R,5S,6R)-6-[[tert-butyl(dimethyl)silyl]oxymethyl]-N-methoxy-N,3-dimethyl-4,5-bis(phenylmethoxy)oxane-2-carboxamide 、
[(1S,2S,3R)-1-(2-Bromo-allyl)-3-(4-methoxy-benzyloxy)-2-methyl-7-trityloxy-heptyloxy]-tert-butyl-dimethyl-silane 在
叔丁基锂 作用下,
以
乙醚 为溶剂,
反应 0.42h,
以77%的产率得到(4S,5S,6R)-4-[tert-butyl(dimethyl)silyl]oxy-1-[(2R,3R,4R,5S,6R)-6-[[tert-butyl(dimethyl)silyl]oxymethyl]-3-methyl-4,5-bis(phenylmethoxy)oxan-2-yl]-6-[(4-methoxyphenyl)methoxy]-5-methyl-2-methylidene-10-trityloxydecan-1-one