4-azido-2,3,6-tri-O-acetyl-4-deoxy-α-D-glucopyranosyl trichloroacetimidate 在
4 A molecular sieve 、
potassium carbonate 作用下,
以
甲醇 、
二氯甲烷 为溶剂,
反应 1.0h,
生成 (2S,3R,4S,5S,6S)-5-Azido-2-[(1R,2R,3S,5R,6S)-3,5-diazido-2-((2R,3R,4R,5R,6R)-3-azido-6-azidomethyl-4,5-bis-benzyloxy-tetrahydro-pyran-2-yloxy)-6-benzyloxy-cyclohexyloxy]-6-hydroxymethyl-tetrahydro-pyran-3,4-diol