Diterpenes and other constituents from Australian Helichrysum and related species

The investigation of several Australian representatives of the genus Helichrysum and related genera afforded 28 new diterpenes (20 ent-labdanes, five seco ent-labdanes, one iso-kaurene, two pimarenes), a cadalenal, a guaiane and a sesquiterpene alcohol with a new carbon skeleton