TRITERPENOID SAPOGENOLS FROM THE LEAVES OF CAREYA ARBOREA: STRUCTURE OF CAREYAGENOLIDE

Article abstract of DOI:10.1016/0031-9422(82)83045-8

The acid hydrolysate of the ethanol extract of Careya arborea leaves afforded a new triterpenoid lactone designated careyagenolide along with maslinic acid and 2α-hydroxy ursolic acid.The structure of careyagenolide has been established as 2α,3β-dihydroxytaraxastan-28,20β-olide by a variety of spectroscopic evidence, chemical transformations and correlation with ψ-taraxasterol.Key Word Index - Careya arborea; Lecythidaceae; careyagenolide; maslinic acid; 2α-hydroxy ursolic acid.