Propose a structure for this unknown carbohydrate

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Reference no: EM13929497

An unknown carbohydrate of formula C12H22O11 reacts with Tollens reagent to form a silver mirror. An a glycosidase has no effect on the carbohydrate, but ß-glycosidase hydrolyzes it to D-galactose and D-mannose. When the carbohydrate is methylated (using methyl iodide and silver oxide) and then hydrolyzed with dilute HCl, the products are 2,3,4,6-tetra-O-methylgalactose and 2,3,4-tri-O-methylmannose. Propose a structure for this unknown carbohydrate.

Reference no: EM13929497

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