Methyl 3-O-α-l-fucopyranosyl β-d-glucopyranoside tetrahydrate
نویسندگان
چکیده
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, forming a three-dimensional network. One water mol-ecule is disordered over two positions with occupancies of 0.748 (4) and 0.252 (4).
منابع مشابه
Methyl 3-O-α-d-mannopyranosyl β-d-glucopyranoside tetrahydrate
The title compound, C(13)H(24)O(11)·4H(2)O, forms extended hydrogen-bonded networks. These are present between disaccharides, but not as inter-residue hydrogen bonds, as well as to water mol-ecules that in addition form an inter-molecular chain of hydrogen bonds. The conformation of the disaccharide is described by the glycosidic torsion angles ϕ(H) = -34° and ψ(H) = -5°. Macroscopically, the d...
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