(2R,3R,4S,5R,6R)-2-(hydroxymethyl)-6-[(2R,3R,4S,5R,6R)-2-[(2R,3R,4R,5S,6S)-2-[(4-methoxyphenyl)methoxy]-6-methyl-3,5-bis(phenylmethoxy)oxan-4-yl]oxy-3,5-bis(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-4-yl]oxy-5-prop-2-enoxyoxane-3,4-diol 、
溴甲苯 在
sodium hydride 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 2.0h,
以95%的产率得到(2R,3R,4S,5R,6R)-4-[(2R,3R,4S,5S,6R)-4,5-bis(phenylmethoxy)-6-(phenylmethoxymethyl)-3-prop-2-enoxyoxan-2-yl]oxy-2-[(2R,3R,4R,5S,6S)-2-[(4-methoxyphenyl)methoxy]-6-methyl-3,5-bis(phenylmethoxy)oxan-4-yl]oxy-3,5-bis(phenylmethoxy)-6-(phenylmethoxymethyl)oxane