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Dihydro-β-agarofuran sesquiterpenes isolated from Celastrus vulcanicola as potential anti-Mycobacterium tuberculosis multidrug-resistant agents
(Elsevier, 2011)
In the present study, we report four new dihydro-β-agarofuran sesquiterpenes (1-4), which were isolated from the leaves of Celastrus vulcanicola, in addition to five derivatives (5-9). Their stereostructures were elucidated ...
REGIO AND STEREOSELECTIVE HYDROXYLATION OF A-AGAROFURAN BY BIOTRANSFORMATION OF RHIZOPUS NIGRICANS
(Sociedad Chilena de Química, 2005)
Agarofuran sesquiterpenes from Schaefferia argentinensis
(Elsevier, 2013-10)
Sixteen dihydro-β-agarofuran sesquiterpenes were isolated from the aerial parts of Schaefferia argentinensis Speg. Their structures were determined by a combination of 1D and 2D NMR and MS techniques. The in vitro ...
Sesquiterpene esters fromMaytenus disticha
(1990)
Four new sesquiterpenes, 9β-benzoyloxy-1α,6β-diacetoxy-15-hydroxy-dihydro-β- agarofuran, 9β-benzoyloxy-1α,6β, 15-triacetoxy-8α-hydroxydihydro-β-agarofuran, 9β-benzoyloxy-1α,6β,8α,15-tetracetoxydihydro- β-agarofuran and 1α, ...
A dihydro-β-agarofuran sesquiterpene from Maytenus boaria
(International Union of Crystallography, 2017-06)
The natural compound (1S,4S,5S,6R,7R,8R,9R,10S)-6-acetoxy-4,9,10-trihydroxy-2,2,5a,9-tetramethyloctahydro-2H-3,9a-methanobenzo[b]oxepin-5-yl furan-3-carboxylate, C22H30O9, (I), is a β-agarofuran sesquiterpene isolated from ...
Selection of Nothofagus host trees by the aphids Neuquenaphis staryi and Neuquenaphis edwardsi
(2004)
Leaf volatiles were collected from three Nothofagus species growing in close proximity in Los Ruiles National Reserve, Chile. The volatile preparation from leaves of No. alessandrii were attractive to the specialist aphid, ...
Host-plant chemicals and distribution of Neuquenaphis on Nothofagus
(Kluwer Academic/Plenum Publishers, 1999)
Extractable metabolites from leaves (EM) and volatiles released from six Nothofagus species were analyzed by TLC and GC-MS, respectively. Aphids of the genus Neuquenaphis, closely associated to Nothofagus, were sampled on ...
New sesquiterpenes from Maytenus species (Celastraceae). Taxonomic and chemotaxonomic considerations concerning chilean Maytenus
(Kluwer Academic Publishers-Plenum Publishers, 1994)
Three new dihydro-β-agarofuran sesquiterpenes from two species of Maytenus were isolated and their structures were elucidated by means of1H and13C NMR studies. The differences and similarities noted in the chemical content ...
REGIO AND STEREOSELECTIVE HYDROXYLATION OF 5a-HYDROXY-14-EUDESM-11-EN-3-ONE EUDESMANE BY BIOTRANSFORMATION OF RHIZOPUS NIGRICANS
(Sociedad Chilena de Química, 2006)