4-chlorophenyl 2,6-di-O-benzoyl-1-thio-β-D-galactopyranoside 、
methyl (3aR,4R,6R,7aS)-3-(2-acetyloxyacetyl)-6-(1-adamantylsulfanyl)-2-oxo-4-[(1S,2R)-1,2,3-triacetyloxypropyl]-3a,4,7,7a-tetrahydropyrano[3,4-d][1,3]oxazole-6-carboxylate 、
Methyl 2-azido-3,6-di-O-benzyl-2-deoxy-α-D-glucopyranoside 在
N-碘代丁二酰亚胺 、
三氟甲磺酸 作用下,
以
二氯甲烷 、
乙腈 为溶剂,
反应 0.33h,
以45%的产率得到methyl (3aR,4R,6S,7aS)-3-(2-acetyloxyacetyl)-6-[(2S,3R,4S,5S,6R)-2-[(2R,3S,4R,5R,6S)-5-azido-6-methoxy-4-phenylmethoxy-2-(phenylmethoxymethyl)oxan-3-yl]oxy-3-benzoyloxy-6-(benzoyloxymethyl)-5-hydroxyoxan-4-yl]oxy-2-oxo-4-[(1S,2R)-1,2,3-triacetyloxypropyl]-3a,4,7,7a-tetrahydropyrano[3,4-d][1,3]oxazole-6-carboxylate