CLERODANE AND LABDANE DITERPINOIDS FROM BACCHARIS SPECIES

Article abstract of DOI:10.1016/S0031-9422(00)80758-X

Key Word Index - Baccharis spp; Compositae; diterpenes; clerodanes; labdanes; nor-diterpene. The investigation of eight Baccharis species afforded, in addition to known compounds, five clerodanes, three labdane derivatives and a nor-diterpene as well as one hydroperoxide derived from 4α-hydroxygermacra-1(10),5-diene.The structures were elucidated by spectroscopic methods.The structures of esters isolated previously from B. cassinaefolia have to be revised.Chemotaxonomic aspects are discussed briefly.