Natural acetylenes. Part XXXVI. Polyacetylenes from the lobeliaceae plant family. A C14 enediyne triol from Lobelia cardinalis L.
Abstract
The isolation and determination of structure and absolute stereochemistry of the new triol MeCH[graphic omitted]CH·[CC]2·CH(OH)·CH(OH)·CH[graphic omitted]CH·[CH2]2·CH2·OH from Lobelia cardinalis L. and the hybrid Lobelia x vedariensis are described. The corresponding dihydroxy-aldehyde structure is suggested for a minor polyacetylene from the hybrid.