[(2S,3R,4S,5S,6R)-2-[(2R,3S,4R,5R,6S)-4-hydroxy-6-(4-methylphenyl)sulfanyl-2-(phenylmethoxymethyl)-5-(2,2,2-trichloroethoxycarbonylamino)oxan-3-yl]oxy-4,5-bis(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-3-yl] benzoate 、
2,2,2-trichloroethyl N-[(2R,3R,4R,5S,6R)-5-[[(2S,4aR,6S,7R,8R,8aR)-7,8-dihydroxy-2-phenyl-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxin-6-yl]oxy]-2-(5-azidopentoxy)-4-[(2S,3S,4R,5R,6S)-6-methyl-3,4,5-tris(phenylmethoxy)oxan-2-yl]oxy-6-(phenylmethoxymethyl)oxan-3-yl]carbamate 、
p-methylphenyl 2,3,4-tri-O-benzyl-1-thio-β-L-fucopyranoside 在
N-碘代丁二酰亚胺 、
三氟甲磺酸 作用下,
以
二氯甲烷 为溶剂,
反应 1.0h,
以41.1%的产率得到N-[(2R,3R,4R,5S,6R)-5-[[(2S,4aR,6S,7R,8R,8aS)-8-[(2S,3R,4R,5S,6R)-5-[(2S,3R,4S,5S,6R)-3-benzoyloxy-4,5-bis(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-2-yl]oxy-3-[[hydroxy(2,2,2-trichloroethoxy)methylidene]amino]-4-[(2S,3S,4R,5R,6S)-6-methyl-3,4,5-tris(phenylmethoxy)oxan-2-yl]oxy-6-(phenylmethoxymethyl)oxan-2-yl]oxy-7-hydroxy-2-phenyl-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxin-6-yl]oxy]-2-(5-azidopentoxy)-4-[(2S,3S,4R,5R,6S)-6-methyl-3,4,5-tris(phenylmethoxy)oxan-2-yl]oxy-6-(phenylmethoxymethyl)oxan-3-yl]-1-(2,2,2-trichloroethoxy)methanimidic acid