Methyl 3,4,6-tri-O-acetyl-2-deoxy-2-[(bis-methoxycarbonyl) methyl]-β-d-glucopyranoside

C-Disaccharides represent a class of compounds in which the interglycosidic oxygen atom is replaced by a methylene group. ^1–3 C-Analogs of monosaccharides serve as convenient precursors in different synthetic routes. ^4–6 Although the introduction of carbon substituents at the anomeric center can be easily achieved by radical reactions, ^7–9 the C-functionalization of other positions, e.g., at C-2, requires usually many steps. ^10–12