A Bioactive Spirolactone Iridoid and Triterpenoids from Himatanthus sucuuba.

Abstract

Himatanthus sucuuba is an Amazonian tree with abundant, yet conflicting ethnobotanical information. Investigation of the polar and non-polar constituents led to the isolation of plumericin, a bioactive spirolactone iridoid, and four known pentacylic triterpenes: lupeol acetate, lupeol cinnamate, lupeol beta-phenyl propionate, and alpha-amyrin cinnamate.