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The allyl group for protection in carbohydrate chemistry. 17. Synthesis of propyl O-(3,6-di-O-methyl-beta-D-glucopyranosyl)-(1----4)-O-(2,3- di-O-methyl-alpha-L-rhamnopyranosyl)-(1----2)-3-O-methyl-alpha- L-rhamnopyranoside: the oligosaccharide portion of the major serologically active glycolipid from Mycobacterium leprae



The allyl group for protection in carbohydrate chemistry. 17. Synthesis of propyl O-(3,6-di-O-methyl-beta-D-glucopyranosyl)-(1----4)-O-(2,3- di-O-methyl-alpha-L-rhamnopyranosyl)-(1----2)-3-O-methyl-alpha- L-rhamnopyranoside: the oligosaccharide portion of the major serologically active glycolipid from Mycobacterium leprae



Chemistry and Physics of Lipids 38(3): 299-307



Allyl 4-O-benzyl-alpha-L-rhamnopyranoside was converted into allyl 4-O-benzyl-3-O-methyl-alpha-L-rhamnopyranoside and this was condensed with 2,3,4-tri-O-acetyl-alpha-L-rhamnopyranosyl chloride to give a disaccharide derivative which was converted into allyl 4-O-benzyl-2-O-(2,3-O-isopropylidene-alpha-L-rhamnopyranosyl)-3-O-methyl -alpha- L-rhamnopyranoside. This disaccharide derivative was condensed with 2,4-di-O-acetyl-3,6-di-O-methyl-alpha-D-glucopyranosyl chloride to give a trisaccharide derivative which was converted into the title compound. This compound represents the oligosaccharide portion of the major serologically active glycolipid from Mycobacterium leprae which is required to prepare a synthetic diagnostic agent for leprosy infection at an early stage and to investigate the specificities of monoclonal antibodies directed towards the glycolipid.

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Accession: 041573764

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