Collect. Czech. Chem. Commun. 1990, 55, 1059-1066

Crystal structure of the native sesquiterpene lactone 8α-angeloyloxy-10β,11α-diacetoxyslov-3-enolide

Urszula Rychłewskaa and Miroslav Holubb

a Department of Crystallography, Faculty of Chemistry, A. Mickiewicz University, 60-180 Poznań, Poland
b Institute of Organic Chemistry and Biochemistry, Czechoslovak Academy of Sciences, 166 10 Prague 6, Czechoslovakia


The X-ray structural analysis of 8α-angeloyloxy-10β,11α-diacetoxyslov-3-enolide (I) confirms the structure of I deduced from spectral data and from the X-ray analysis of its derivative II. The stereostructure of I is discussed and compared with that of II and III.