An. Degutierrez et al., SESQUITERPENE LACTONES, A LABDANE AND OTHER CONSTITUENTS OF UROLEPIS-HECATANTHA AND CHROMOLAENA-ARNOTTIANA, Phytochemistry, 39(4), 1995, pp. 795-800
Aerial parts of Urolepis hecatantha afforded several heliangolides, a
new labdane, the oleate of 9-hydroxy-Z, E-farnesol, a new toxol and is
opentenylacetophenone derivatives as well as a number of common plant
constituents. Aerial parts of Chromolaena arnottiana contained 5,3'-di
hydroxy-6,7,4'-trimethoxyflavone, 5-hydroxy-6,7,3',4'teramethoxyflavon
e, 5-hydroxy, 6,7,3',4',5'-pentamethoxyflavone, other common plant con
stituents and a derivative of 3,4-dihydroxyacetophenone.