摘要:
Aerial parts of Gaillardia suavis gave orobol 7,3'-dimethyl ether and the new isoflavones 7,3'-dimethoxy-5,6,4'-trihydroxyisoflavone and 7-methoxy-5,6,4'-trihydroxyisoflavone. Gaillardia aestivalis from central Texas gave the 2'-acetylglucopyranosides of 12-hydroxynerolidol and 10,11-dihydro-12-hydroxynerolidol and the 2',6'-diacetylglucopyranoside of 2-phenethyl alcohol as well as some common plant constituents, while the main constituent of several other G. aestivalis collections was a Diels-Alder adduct of multigilin and 8-hydroxy-alpha-phellandrene.