Acta Cryst. (2004). E60, o2130-o2132  [ doi:10.1107/S1600536804026546 ]

Arjunglucoside I chloromethane 0.25-solvate monohydrate

M. Parvez, Atta-ur-Rahman, M. I. Choudhary, S. Zareen, N. M. Akhtar, S. Shujaat and F. N. Ngounou

Abstract: The crystal structure of the title compound (systematic name: -D-glucopyranosyl 2,3,19,23-tetrahydroxyolean-12-en-28-oate chloromethane 0.25-solvate monohydrate), C₃₆H₅₈O₁₁·0.25CH₃Cl·H₂O, contains a triterpenyl moiety esterified with a glucopyranosyl unit, a disordered molecule of chloromethane solvent with a partial site occupancy located about a twofold axis and a water molecule of hydration. Three rings of the triterpenyl moiety adopt classical chair conformations, while one ring exhibits an envelope conformation and one has a flattened chair conformation. The glucopyranosyl ring also adopts a chair conformation. The structure is stabilized by extensive intermolecular hydrogen bonds as well as an intramolecular interaction.

Online 30 October 2004

Copyright © International Union of Crystallography
IUCr Webmaster