(2S,3R,4S,5R,6R)-3,4,5-Triacetoxy-6-((2R,3R,4S,5R,6S)-3,4,5,6-tetraacetoxy-tetrahydro-pyran-2-ylmethoxy)-tetrahydro-pyran-2-carboxylic acid methyl ester 在
乙酸酐 、 zinc(II) chloride 作用下,
生成
O2,O3,O4-triacetyl-O1-(tetra-O-acetyl-galactopyranose-6-yl)-glucopyranuronic acid methyl ester