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Methyl 3,4,6-tri-O-acetyl-2-de­oxy-2-azido-α-d-galacto­pyranosyl-(1→2)-[3,4,6-tri-O-acetyl-2-de­oxy-2-phthalimido-β-d-glucopyranosyl-(1→3)]-4-O-benzoyl-α-l-rhamnopyran­oside n-hexane 0.1-solvate

✍ Scribed by Färnbäck, Magnus ;Söderman, Peter ;Eriksson, Lars ;Widmalm, Göran

Publisher
International Union of Crystallography
Year
2007
Tongue
English
Weight
661 KB
Volume
63
Category
Article
ISSN
1600-5368

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✦ Synopsis

The title compound, C 51 H 56 N 4 O 21 Á0.1C 6 H 14 , crystallizes with two independent protected trisaccharide molecules and a partially occupied hexane solvent molecule in the asymmetric unit. The major conformational difference between the two trisaccharide molecules involves the O-acetyl group at the exocyclic primary C atom of the galactosyl residue.

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Acylated ]3-o-xylopyranose derivatives are known to exist as a mixture of the 1C 4 and 4C I conformers in rapid equilibrium in solution [3]. Several conformations have also been reported for/3-D-xylopyranose derivatives in the solid state [4]. In the course of our study to investigate the functions