乙酸酐 、
(1R,5R,6R,7S,8R)-3-(α-D-glucopyranosylamino)-2-oxa-4-azabicyclo<3.3.0>oct-3-ene-6,7,8-triol 以
吡啶 为溶剂,
反应 3.0h,
以100%的产率得到(1R,5S,6R,7S,8S)-4-N,6-O,7-O,8-tetraacetyl-3-(2',3',4',6'-tetra-O-acetyl-α-D-glucopyranosylimino)-2-oxa-4-azabicyclo<3.3.0>octane-6,7,8-triol