Triterpenoid saponins from Campsiandra guayanensis

Thirteen new triterpenoid saponins (1-13) were isolated from the aerial parts of Campsiandra guayanensis. Their structures were elucidated by 1D and 2D NMR experiments including 1D-TOCSY, DQF-COSY, ROESY, HSQC, and HMBC spectroscopy, as well as ESIMS analysis. The aglycon moieties of 1-10 were assig...

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Bibliographic Details
Published in:Journal of natural products (Washington, D.C.) D.C.), 2006-02, Vol.69 (2), p.240-246
Main Authors: Braca, A, Abdel-Razik, A.F, Mendez, J, De Tommasi, N
Format: Article
Language:English
Subjects:
Biological and medical sciences
Caesalpinia - chemistry
Campsiandra
Campsiandra guayanensis
Carbohydrate Sequence
chemical structure
General pharmacology
Medical sciences
medicinal plants
Molecular Structure
Nuclear Magnetic Resonance, Biomolecular
Pharmacognosy. Homeopathy. Health food
Pharmacology. Drug treatments
Plants, Medicinal - chemistry
Saponins - chemistry
Saponins - isolation & purification
spectral analysis
Spectrometry, Mass, Electrospray Ionization
Triterpenes - chemistry
Triterpenes - isolation & purification
triterpenoid saponins
Venezuela
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Summary:Thirteen new triterpenoid saponins (1-13) were isolated from the aerial parts of Campsiandra guayanensis. Their structures were elucidated by 1D and 2D NMR experiments including 1D-TOCSY, DQF-COSY, ROESY, HSQC, and HMBC spectroscopy, as well as ESIMS analysis. The aglycon moieties of 1-10 were assigned as oleanane derivatives and those of 11-13 as lupane derivatives.
ISSN:0163-3864
1520-6025
DOI:10.1021/np050429+