Structure of Undulatin: A New Iridoid Glucoside fromTecomella undulata

Abstract
Undulatin (1), a new iridoid glucoside isolated from the Tecomella undulata Seem. (Bignoniaceae), has been assigned the structure 4′-O-p-coumaroyl-7,8-dihydro-8-dehydroxymethylbartsioside by chemical and spectroscopic analysis.