A new truxillate and some flavonoid esters from the leaf gum of Traversiabaccharoides Hook. f.

Abstract

Investigation of the leaf washings of Traversiabaccharoides Hook. f. (Asteraceae: Senecionae) revealed the presence, besides typical cuticular lipids, of labd-13-ene-5,18-diol, 13-epi-ent.-manoyl oxide, n-butyl caffeate and its mono-O-isobutyrate derivatives, an α-truxillate photodimer of n-butyl caffeate (di-n-butyl traversate), (2S)-5,3′,4′-trihydroxy-7-methoxyflavanone, and various derivatives of quercetin including the 3-, 3′-, and 4′-mono-O-isobutyrates.