Polyavolinamide,an indolosesquiterpene alkaloid from Polyathia suaveolens

A new indolosesquiterpene alkaloid, polyavolinamide, has been identified in the stem of Polyathia suaveolens accompanied by the three previously isolated indolosesquiterpene alkaloids, polyavolensin, polyavolensinol, polyavolensinone, as well as an unidentified triterpene and an aporhine alkaloids. Polyavolinamide was also the major component of the root bark. Its structure was assigned on the basis of ¹¹H and ¹³C NMR, and mass spectrometry.