Now showing items 1-10 of 178
Highly oxygenated sesquiterpenes from the subtribe nassauviinae
The aerial parts of Oxyphyllum ulicinum afforded, in addition to known compounds, 15 new germacrane derivatives with a 1β, 10α-epoxide, a carboxyl group at C-4, and different ester groups at C-9 and C-14. From the aerial ...
Further sesquiterpene pyridine alkaloids from Maytenus aquifolium
Two new sesquiterpene evoninate alkaloids, aquifoliunine E-III and aquifoliunine E-IV, were isolated from the root bark of Maytenus aquifolium. The structures of the new compounds were elucidated on the basis of spectroscopic ...
Sesquiterpene lactones from Perityle emoryi
The extract of the aerial parts of Perityle emoryi gave, in addition to seven known sesquiterpene lactones, six new germacranolides and a guaianolide as well as a further thymol derivative together with several known ones ...
Halogenated sesquiterpenes pacifenol and pacifenol derivatives on the aphid Schizaphis graminum
Pacifenol, a halogenated sesquiterpene was isolated from Laurencia claviformis. The effects of pacifenol and two derivatives on survival and feeding behaviour of the aphid Schizaphis graminum were studied. Toxicity of ...
An unusual dimeric sesquiterpene and other constituents from Chilean Baccharis species
The aerial parts of B. santelicis afforded several known furoclerodanes and phenolics. In addition to known compounds an unusual dimeric sesquiterpene and five labdane derivatives were isolated from B. petiolata. The ...
Minor sesquiterpenes from the volatile oil from leaves of Guarea guidonia Sleumer (Meliaceae)
(TAYLOR & FRANCIS LTD, 2009)
The essential oil from leaves of Guarea guidonia was subjected to chromatographic separation procedures to afford nine sesquiterpenes; two of them are new eudesmane derivatives. The chemical structures of the obtained ...
Gastroprotective activity of sesquiterpene derivatives from Fabiana imbricata
(John Wiley & Sons Ltd., 2007)
Highly oxygenated sesquiterpenes from Polyachyrus sphaerocephalus and further constituents from chilean mutisieae
The aerial parts of Polyachyrus sphaerocephalus gave seven new eudesmane derivatives and a germacra-dien-diol while a reinvestigation of P. fuscus afforded a new caryophyllene, two nerolidolglycosides, a curcumene and two ...
Biosynthesis of sesquiterpene alcohols and aldehydes by cell free extracts from orange flavedo
Water soluble enzymes obtained from orange flavedo form two isomeric farnesols from 1-3H labeled geranylpyrophosphate plus isopentenylpyrophosphate. © 1973.