Date Published: March 01, 2012
Publisher: International Union of Crystallography
Author(s): Runan Tian, Haoriqinbatu, Hongchang Liu, Xiaoming Wang, Yonghua Yang.
The title compound, C19H19NO10, was obtained from the reaction of α-d-1-bromo-2,3,4-tri-O-acetylxylose with N-hydroxyphthalimide in the presence of potassium carbonate. The asymmetric unit contains two independent molecules, in which the O—CH—O—N torsion angles are 73.0 (4) and 65.0 (4)°. The hexapyranosyl rings adopt chair conformations and the substituent groups are in equatorial positions. In the crystal, molecules are linked by nonclassical C—H⋯O hydrogen bonds.
For related structures, see: Yang et al. (2004 ▶); Wang et al. (2008 ▶); Bai et al. (2008 ▶).