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Sequestration of tropane alkaloids from Brugmansia suaveolens (Solanaceae) by the treehopper Alchisme grossa (Hemiptera: Membracidae)
(Pergamon-Elsevier, 2016)
Treehoppers (Hemiptera: Membracidae) are sap-feeding insects distributed mainly in tropical regions. Alchisme grossa is a treehopper that has been reported in the Bolivian Yungas forests using mostly Brugmansia suaveolens ...
Tropane alkaloids from Schizanthus pinnatus
(1988)
From Schizanthus pinnatus Ruiz et Pav. we have isolated seven new tropan-3α,6β-diol diesters, schizanthines F (1), G (2), H (3), I (4), K. (8), L (9), and M (10), together with tropine, (-) -6β-angeloyloxytropan-3α-ol (5), ...
Tropane alkaloids from Schizanthus hookeri
(1980)
Tropine, a pair of diastereoisomeric hygrolines and two new tropane alkaloids; 3α-senecioyloxytropan-6β-ol and 6β-angeloyloxytropan-3α-ol, were isolated from roots of Schizanthus hookeri. © 1980.
Use of porous graphitic carbon column for the separation of natural isomeric tropane alkaloids by capillary LC and mass spectrometry
(PERGAMON-ELSEVIER SCIENCE LTD, 2006-02-24)
This study presents the outstanding chromatographic selectivity of a porous graphitic carbon support for the separation of four isomeric tropane alkaloids from the stem-bark of Schizanthus grahamii (Solanaceae). Capillary ...
Analysis of isomeric tropane alkaloids from Schizanthus grahamii by very fast gas chromatography
(WILEY-V C H VERLAG GMBH, 2006-01)
This study presents a very fast GC analysis applied for the baseline separation of isomeric tropane alkaloids extracted from the stem-bark of Schizanthus grahamii (Solanaceae). The work provided a challenging application ...
Host Plant Invests in Growth Rather than Chemical Defense When Attacked by a Specialist Herbivore
(SpringerDordrechtHolanda, 2011)
Tropane alkaloids of the aerial parts of Schizanthus tricolor
(2007)
The alkaloid profile of the aerial parts of Schizanthus tricolor Grau et Gronbach was investigated by GC-MS. Seventeen alkaloids were detected and are reported in this species for the first time. They were identified by ...
Analytical considerations for the successful evaluation of hyoscyamine biotransformation into 6b-hydroxyhyoscyamine and scopolamine
(Colegio de Farmacéuticos de la Provincia de Buenos Aires, 2012-05)
Hyoscyamine, 6B-hydroxyhyoscyamine and scopolamine are anticholinergic agents that be-long to the tropane alkaloids, a pharmacological important group of secondary metabolites. Hyoscyamine and scopolamine were historically ...