for the following products
(2S,3R,4S,5S,6S)-6-(Methoxycarbonyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate | 1,2,3,4-Tetra-o-acetyl-beta-D-glucuronic acid methyl ester | Methyl (2R,3R,4R,5S,6R)-3,4,5,6-tetrakis(acetyloxy)oxane-2-carboxylate and Methyl-1,2,3,4-tetra-O-acetyl-beta-D-glucuronate
