A diterpene acid was isolated from the aerial part of Pulicaria salviifolia. Spectral data and chemical transformations identify it as hautriwaic acid.
Abstract The terpenoid composition of the leaf resin of three Baccharis species has been studied. Baccharis heterophylla afforded the trivial compound oleanolic acid and the rare triterpene maniladiol. Baccharis sarothroides yielded oleanolic acid, the diterpene hautriwaic acid and its derivative 2β-hydroxyhautriwaic acid which is a novel natural product. Baccharis vaccinoides produces oleanolic acid
作者:Vicente Gambaro、María C. Chamy、Juan A. Garbarino
DOI:10.1016/s0031-9422(00)81436-3
日期:1987.1.28
Abstract Two new neo-clerodane diterpenes, hautriwaic acid acetate and 4β-hydroxyisobacchasmacranone, were isolated from the aerial parts of Baccharismacraei . The structures of the new compounds were elucidated by spectroscopic methods. The structure of hautriwaic acid acetate was confirmed by correlation with its known deacetyl derivative, hautriwaic acid.
Kingidiol, a kolavane derivative from Baccharis kingii
作者:Ferdinand Bohlmann、Christa Zdero、Robert M. King、Harold Robinson
DOI:10.1016/s0031-9422(00)80497-5
日期:1984.1
Abstract The aerial parts of Baccharis kingii afforded quercetin 3,3′-dimethyl ether and a new diterpene closely related to hautriwaic acid. Structure and