Horizon 1 1 17 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES Bolivianine, a new sesterpene with an unusual skeleton from Hedyosmum angustifolium, and its isomer, isobolivianine Organic Letters 4693-4696 2007 PAR00002028 ENG Organic Letters 1523-7060 CC:0002506730-0006 23 10.1021/ol7015725 https://www.documentation.ird.fr/hor/PAR00002028 9 Horizon (IRD) Bolivianine, a novel sesterpene with an unprecedented skeleton, has been isolated from the trunk bark of Hedyosmum angustifolium (Chloranthaceae), with isobolivianine, an isomer formed under acidic conditions. The structure and relative stereochemistry were elucidated on the basis of spectroscopic data. A hypothesis for biogenesis was made. 076