Acta Cryst. (2003). E59, o350-o352  [ doi:10.1107/S1600536803003349 ]

Absolute configuration of diacetylated acrenol as its chloroform solvate

R. A. Burrow, A. F. Morel, I. B. Graebner, A. J. Lough and D. H. Farrar

Abstract: The title compound, (15S)-15,16-diacetato-3,20-epoxy-3-hydroxy-9-epi-7-pimaren-19,6-olide chloroform solvate, C₂₄H₃₂O₈·CHCl₃, formed from the diacetylation of acrenol, isolated from the tubers of Humirianthera ampla, crystallizes as a chloroform solvate. The anomalous dispersion of the Cl atoms allows the absolute configuration to be determined. The structure is based on a pimarane skeleton and shows an identical conformation to the previously determined structures of icancinol and the acetylated derivative of humirianthol.

Online 21 February 2003

Copyright © International Union of Crystallography
IUCr Webmaster