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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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