2-Acetylamino-1,3,4,6-tetra-O-(trimethylsilyl)-2-deoxy-α-d-glucopyranose

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 α-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.