Isolation and Structure Determination of Demethylchodatin—a New Lichen Xanthone
JA Elix, JA Elix, F Robertson, F Robertson, JH Wardlaw, JH Wardlaw, AC Willis and AC Willis
Australian Journal of Chemistry
47(12) 2291 - 2295
Published: 1994
Abstract
The structure of demethylchodatin, a xanthone from the lichen Lecanora pachysoma, has been established by X-ray analysis of the corresponding triacetate derivative. Crystals of demethylchodatin triacetate are monoclinic, P 21/a, a 10.120(3), b 11.278(3), c 19.173(4) Ǻ, β 94.68(3)°; Z 4. Refinement of 1411 data with I > 3σ(I) gave conventional R factors of 0.041 and 0.033.
https://doi.org/10.1071/CH9942291
© CSIRO 1994
