Hydrolysis of the disaccharide Michellose gives two moles of D- glucose. It cannot be hydrolyzed with an ?-glucosidase. Oxidation of Michellose with bromine water, followed by permethylation with sodium hydroxide and dimethyl sulfate, leads to an octamethylmichelloronic acid derivative. Mild acid treatment of this compound produces a solution which reduces periodic acid. What is the structure of Michelleose? Explain your reasoning