Crystal structure of 4,6-dimethyl-2-{[3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl]sulfanyl}nicotinonitrile
نویسندگان
چکیده
In the title compound, C14H18N2O5S, the C-S bond lengths are unequal, with S-Cglucose = 1.8016 (15) Å and S-Cpyrid-yl = 1.7723 (13) Å. The hydro-philic glucose residues lie in the regions z ≃ 0.25 and 0.75. Four classical hydrogen bonds link the mol-ecules to form layers parallel to the ab plane, from which the pyridyl rings project; pyridyl ring stacking parallel to the a axis links adjacent layers.
منابع مشابه
{6-[2,5-Bis(chloromethyl)-3,4-dihydroxytetrahydrofuran-2-yloxy]-3-chloro-4,5-dihydroxy-3,4,5,6-tetrahydro-2H-pyran-2-yl}methyl acetate dihydrate
The title compound, C(14)H(21)Cl(3)O(9)·2H(2)O, is a disaccharide constructed from a galactose and a fructose. In the mol-ecular structure, the tetra-hydro-furan five-membered ring and tetra-hydro-pyran six-membered ring assume envelope and chair conformations, respectively. An extensive O-H⋯O hydrogen-bonding network occurs in the crystal structure.
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The title compound, C(12)H(22)O(11)·2H(2)O {systematic name: 6,6'-oxybis[2-(hy-droxy-meth-yl)-3,4,5,6-tetra-hydro-2H-pyran-3,4,5-triol] dihydrate}, is a disaccharide, which was isolated from Tremella fuciformis. The mol-ecule contains two six-membered rings, both of which adopt a chair conformation. Extensive O-H⋯O hydrogen bonds occur in the crystal structure.
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عنوان ژورنال:
دوره 73 شماره
صفحات -
تاریخ انتشار 2017