在
N-碘代丁二酰亚胺 、
三乙基硅基三氟甲磺酸酯 作用下,
以
二氯甲烷 为溶剂,
以60%的产率得到N-[(2S,3R,4R,5S,6R)-5-[[(2R,4aR,6S,7S,8S,8aR)-8-[tert-butyl(dimethyl)silyl]oxy-2-phenyl-7-phenylmethoxy-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxin-6-yl]oxy]-2-[[(3aR,5R,6S,7R,7aR)-2-methyl-7-phenylmethoxy-5-(phenylmethoxymethyl)-5,6,7,7a-tetrahydro-3aH-pyrano[3,2-d][1,3]oxazol-6-yl]oxy]-4-phenylmethoxy-6-(phenylmethoxymethyl)oxan-3-yl]acetamide