Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 6 (June 2013)

organic compounds

Acta Cryst. (2013). E69, o917    [ doi:10.1107/S160053681301266X ]


Z.-D. Cheng, Y.-L. Cui and J.-W. Mao

Abstract: The title compound, C20H47NO6Si4, was synthesized by per-O-tri­methyl­silylation of N-acetyl-D-glucosa­mine using chloro­tri­methyl­silane in the presence of hexa­methyl­disiloxane. The tri­methyl­silyl group and acetamido group are located on the same side of the pyran ring, showing an [alpha]-configuration glycoside. One of the tri­methyl­silyl groups is disordered over two orientations, with site-occupancy factors of 0.625 (9) and 0.375 (9). In the crystal, N-H...O hydrogen bonds link the mol­ecules into supra­molecular chains along the a-axis direction.

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