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Methyl 3-O-?-l-fucopyranosyl ?-d-glucopyran-oside tetra-hydrate.

ABSTRACT: The title compound, C(13)H(24)O(10)·4H(2)O, is the methyl glycoside of a disaccharide structural element present in the backbone of the capsular polysaccharide from Klebsiella K1, which contains only three sugars and a substituent in the polysaccharide repeating unit. The conformation of the title disaccharide is described by the glycosidic torsion angles ?(H) = 51.1?(1)° and ?(H) = 25.8?(1)°. In the crystal, a number of O-H?O hydrogen bonds link the methyl glycoside and water mol-ecules, forming a three-dimensional network. One water mol-ecule is disordered over two positions with occupancies of 0.748?(4) and 0.252?(4).

SUBMITTER: Eriksson L

PROVIDER: S-EPMC3515273 | biostudies-other | 2012 Nov

REPOSITORIES: biostudies-other

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Methyl 3-O-α-l-fucopyranosyl β-d-glucopyran-oside tetra-hydrate.

Eriksson Lars L Widmalm Göran G

Acta crystallographica. Section E, Structure reports online 20121020 Pt 11

The title compound, C(13)H(24)O(10)·4H(2)O, is the methyl glycoside of a disaccharide structural element present in the backbone of the capsular polysaccharide from Klebsiella K1, which contains only three sugars and a substituent in the polysaccharide repeating unit. The conformation of the title disaccharide is described by the glycosidic torsion angles ϕ(H) = 51.1 (1)° and ψ(H) = 25.8 (1)°. In the crystal, a number of O-H⋯O hydrogen bonds link the methyl glycoside and water mol-ecules, formin ...[more]

PMID: 23284493

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