BIOMAT Database Logo BIOMAT Database Logo

Structure elucidation and NMR assignments of two new triterpenoids from the stems of Paragonia pyramidata (Bignoniaceae). 2011

Xiao-Ling Wang, and Anne-Emmanuelle Hay, and An Matheeussen, and Mahabir P Gupta, and Kurt Hostettmann

Phytochemical investigation of dichloromethane (DCM) extract from the stems of Paragonia pyramidata var. pyramidata L. Rich. (Bur.) resulted in the isolation and characterization of two new triterpenoids 3β,19β-dihydroxylup-12, 20(29)-diene-28-oic acid (1) and 3β,19β-dihydroxylup-12-en-28-oic acid (2), three known triterpenoids lupeol (3), spinosic acid A (4) and oleanolic acid (5), together with four known steroids (20R)-22E-24-ethylcholesta-4,22-dien-3-one (6), (20R)-24-ethylcholest-4-en-3-one (7), stigmasterol (8) and β-sitosterol (9). HREIMS, GC-MS and NMR experiments including HSQC, HMBC, COSY and NOESY were used for the determination of the structures and NMR spectral assignments. This is the first report about the chemical constituents for this plant.

UI MeSH Term Description Entries
D009682 Magnetic Resonance Spectroscopy Spectroscopic method of measuring the magnetic moment of elementary particles such as atomic nuclei, protons or electrons. It is employed in clinical applications such as NMR Tomography (MAGNETIC RESONANCE IMAGING). In Vivo NMR Spectroscopy,MR Spectroscopy,Magnetic Resonance,NMR Spectroscopy,NMR Spectroscopy, In Vivo,Nuclear Magnetic Resonance,Spectroscopy, Magnetic Resonance,Spectroscopy, NMR,Spectroscopy, Nuclear Magnetic Resonance,Magnetic Resonance Spectroscopies,Magnetic Resonance, Nuclear,NMR Spectroscopies,Resonance Spectroscopy, Magnetic,Resonance, Magnetic,Resonance, Nuclear Magnetic,Spectroscopies, NMR,Spectroscopy, MR
D012015 Reference Standards A basis of value established for the measure of quantity, weight, extent or quality, e.g. weight standards, standard solutions, methods, techniques, and procedures used in diagnosis and therapy. Standard Preparations,Standards, Reference,Preparations, Standard,Standardization,Standards,Preparation, Standard,Reference Standard,Standard Preparation,Standard, Reference
D013237 Stereoisomerism The phenomenon whereby compounds whose molecules have the same number and kind of atoms and the same atomic arrangement, but differ in their spatial relationships. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed) Molecular Stereochemistry,Stereoisomers,Stereochemistry, Molecular,Stereoisomer
D014315 Triterpenes A class of terpenes (the general formula C30H48) formed by the condensation of six isoprene units, equivalent to three terpene units. Triterpene,Triterpenoid,Triterpenoids
D015394 Molecular Structure The location of the atoms, groups or ions relative to one another in a molecule, as well as the number, type and location of covalent bonds. Structure, Molecular,Molecular Structures,Structures, Molecular
D018547 Plant Stems Parts of plants that usually grow vertically upwards towards the light and support the leaves, buds, and reproductive structures. (From Concise Dictionary of Biology, 1990) Plant Stem,Stem, Plant,Stems, Plant
D029402 Bignoniaceae A plant family of the order Lamiales. The family is characterized by oppositely paired, usually compound leaves and bell- or funnel-shaped, bisexual flowers having a five-lobed calyx and corolla. Stereospermum,Tecoma

Related Publications

Xiao-Ling Wang, and Anne-Emmanuelle Hay, and An Matheeussen, and Mahabir P Gupta, and Kurt Hostettmann
Structure elucidation and NMR assignments of two new pyrrolidinyl quinoline alkaloids from chestnut honey.
May 2009, Magnetic resonance in chemistry : MRC,
Xiao-Ling Wang, and Anne-Emmanuelle Hay, and An Matheeussen, and Mahabir P Gupta, and Kurt Hostettmann
Structure elucidation and NMR assignments of two new flavanones from the roots of Artocarpus heterophyllus.
October 2015, Magnetic resonance in chemistry : MRC,
Xiao-Ling Wang, and Anne-Emmanuelle Hay, and An Matheeussen, and Mahabir P Gupta, and Kurt Hostettmann
Structure elucidation and NMR assignments of a new triterpenoid from Ixeris chinensis.
July 2017, Natural product research,
Xiao-Ling Wang, and Anne-Emmanuelle Hay, and An Matheeussen, and Mahabir P Gupta, and Kurt Hostettmann
Structure elucidation and NMR assignments of new spirosolane alkaloids from Solanum campaniforme.
January 2012, Magnetic resonance in chemistry : MRC,
Xiao-Ling Wang, and Anne-Emmanuelle Hay, and An Matheeussen, and Mahabir P Gupta, and Kurt Hostettmann
Structure elucidation and complete NMR spectral assignments of two new dammarane-type tetraglycosides from Panax quinquefolium.
August 2008, Magnetic resonance in chemistry : MRC,
Xiao-Ling Wang, and Anne-Emmanuelle Hay, and An Matheeussen, and Mahabir P Gupta, and Kurt Hostettmann
Structure elucidation and complete NMR spectral assignments of two new sesquiterpene lactone xylosides from Lactuca triangulata.
December 2008, Magnetic resonance in chemistry : MRC,
Xiao-Ling Wang, and Anne-Emmanuelle Hay, and An Matheeussen, and Mahabir P Gupta, and Kurt Hostettmann
Structure elucidation and NMR assignments of a new 6,9-cyclotetrahydrofuranlignan from Syringa pinnatifolia.
January 2016, Natural product research,
Xiao-Ling Wang, and Anne-Emmanuelle Hay, and An Matheeussen, and Mahabir P Gupta, and Kurt Hostettmann
Triterpenoids from Eugenia grandis: structure elucidation by NMR spectroscopy.
March 2007, Magnetic resonance in chemistry : MRC,
Xiao-Ling Wang, and Anne-Emmanuelle Hay, and An Matheeussen, and Mahabir P Gupta, and Kurt Hostettmann
Structure elucidation and NMR assignments of two unusual monoterpene indole alkaloids from Psychotria stachyoides.
September 2010, Magnetic resonance in chemistry : MRC,
Xiao-Ling Wang, and Anne-Emmanuelle Hay, and An Matheeussen, and Mahabir P Gupta, and Kurt Hostettmann
Structure elucidation and NMR assignments of two unusual xanthones from Lomatogonium carinthiacum (Wulf) Reichb.
January 2014, Magnetic resonance in chemistry : MRC,
Copied contents to your clipboard!