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Highly oxygenated sesquiterpenes from the subtribe nassauviinae
(1988)
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
(1998-12-05)
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 ...
Further sesquiterpene pyridine alkaloids from Maytenus aquifolium
(1998-12-05)
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
(1990)
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
(1993)
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 ...
Sesquiterpene lactones and other constituents from Calea prunifolia and C. Peckii
(1989)
A re-investigation of Calea prunifolia afforded, in addition to compounds reported previously, a new eudesmanolide, a costol acetate hydroperoxide and four aromatic compounds. Calea peckii gave a large variety of aromatic ...
An unusual dimeric sesquiterpene and other constituents from Chilean Baccharis species
(1991)
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 ...
Minor sesquiterpenes from the volatile oil from leaves of Guarea guidonia Sleumer (Meliaceae)
(Taylor & Francis Ltd, 2009-01-01)
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 ...
(+)-α-copaen-8-one and other constituents from Neomirandea species
(1989)
The investigation of five Neomirandea species gave two known entclerodanes, a heliangolide, a cadinene and a new copaene derivative as well as some widespread compounds.