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Seco-, nor-, normal and rearranged labdanes from Haplopappus parvifolius
(1991)
The aerial parts of Haplopappus parvifolius afforded 30 new diterpenes including 21 labdane derivatives, four nor-diterpenes, three rearranged ones, four seco-labdanes and one with a new carbon skeleton whose structure was ...
Seco-labdanes and other constituents fromOphryosporus floribundus
(1990)
The extract of the aerial parts ofO. floribundus afforded in addition to known compounds 17 new diterpenes, including eightseco-ent-labdanes with a very rare carbon skeleton. The structures were elucidated by high field ...
Diterpenes and umbelliferone derivatives from Haplopappus deserticola
(1990)
The aerial parts of Haplopappus deserticola afforded three ent-labdane and one labdane derivative as well as a nor-ent-labdane. Furthermore, in addition to three known umbelliferone derivatives, a dimeric coumarin was ...
Seco-manool and other constituents from fleischmannia microstemon
(1988-01)
The aerial parts of Fleischmannia microstemon afforded in addition to sesamin and two clerodanes, ent-manoyl oxide and two derivatives of the latter, one a 6β-acetoxy derivative and the other a seco-labdane. From F. pratensis ...
Labdane diterpenes from the marine pulmonate gastropod Trimusculus peruvianus
(Natl Research Council of Canada, 1996)
The marine gastropod mollusk *Trimusculus peruvianus collected on the coast of Central Chile yielded four new labdane metabolites. The structural elucidation of all compounds was accomplished by spectral analysis. One ...
A novel labdane diterpene from Acritopappus longifolius
(PERGAMON-ELSEVIER SCIENCE LTD, 2011)
A novel labdane diterpene was isolated from the plant Acritopappus longifolius. The structure of this compound was established by 1D- and 2D-nuclear magnetic resonance spectroscopic techniques and mass spectrometry data. ...
Labdane dimers from Xylopia aromatica
(1999-07)
From the stem bark of Xylopia aromatica (Annonaceae), have been isolated two new labdane dimers as their methyl esters, together with the known compounds ent-labda-8(17),13(16),14-trien-18-oic acid, sitosterol and stigmasterol. ...
Labdane dimers from Xylopia aromatica
(Elsevier B.V., 1999-07-01)
From the stem bark of Xylopia aromatica (Annonaceae), have been isolated two new labdane dimers as their methyl esters, together with the known compounds ent-labda-8(17),13(16),14-trien-18-oic acid, sitosterol and stigmasterol. ...
Ent-labdane and beyerane diterpenes from Erythroxylum betulaceum Mart
(2013-10-01)
•Diterpenes were isolated from wood of Erythroxylum betulaceum Mart.•Two ent-labdanes and one ent-beyrane diterpenes were isolated.•Diterpenes together tropanic alkaloid and may be useful as a chemotaxonomic markers of ...
Labdane dimers from Xylopia aromatica
(Elsevier B.V., 1999-07-01)
From the stem bark of Xylopia aromatica (Annonaceae), have been isolated two new labdane dimers as their methyl esters, together with the known compounds ent-labda-8(17),13(16),14-trien-18-oic acid, sitosterol and stigmasterol. ...