Synthesis of 2,3-di-O-glycosyl derivatives of methyl α- and β-d-glucopyranoside☆

Add time:08/12/2019    Source:sciencedirect.com

The syntheses are described of 2,3-di-O-glycosyl derivatives of methyl α- and β-d-glucopyranoside having α-d-manno-, β-d-galacto-, α-l-rhamno-, α-l-fuco-, and β-l-fuco-pyranosyl substitutents at O-2 and O-3. The syntheses involved glycoslation of methyl 4,6-O-(benzylidene-α- (24) and β-d-glucopyranoside (21), and substituted derivatives of 21 bearing 2-O-(2,3,4,6-tetra-O-benzyl-α-d-mannopyranosyl)-, -(2,3,4,6-tetra-O-acetyl-β-d-galactopyranosyl)-, -(2,3,4-tri-O-benzyol-α-L-rhamnopyranosyl)-, and-(2,3,4-tri-O-benzoyl-β-l-fucopyranosyl) groups.

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