Crystal structure of racemic 2-[(β-arabino-pyran-osyl)-sulfanyl]-4,6-diphenylpyridine-3-carbo-nitrile.

In the racemic title compound, CHNOS, the sulfur atom is attached equatorially to the sugar ring with unequal S-C bonds, .: S-C = 1.808 (2) and S-C = 1.770 (2) Å (s = sugar, p = pyrid-yl). The dihedral angles between the pyridine ring and its attached phenyl groups are 42.24 (8) and 6.37 (14)°. In the crystal, a system of classical O-H⋯O and O-H⋯(O,O) hydrogen bonds links the mol-ecules to form tube-like assemblies propagating parallel to the -axis direction. Weak C-H⋯N inter-actions are also observed.