C19 DITERPENE ALKALOIDS FROM DELPHINIUM-GUENERI

Abstract

Three new lycoctonine-type diterpene alkaloids, 14-O-methylperegrine, N-deethyl-14-O-methylperegrine and guenerin were isolated from the aerial parts of Delphinium gueneri together with the known compounds, peregrine, peregrine alcohol, talatisamine and 14-acetylneoline. The structures were established by spectral data and some chemical reactions.