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 assigned as oleanane derivatives and those of 11-13 as lupane derivatives.
Braca
Alessandra
A
Dipartimento di Chimica Bioorganica e Biofarmacia, Università di Pisa, Via Bonanno 33, 56126 Pisa, Italy. braca@farm.unipi.it
Abdel-Razik
Ayman F
AF
Mendez
Jeannette
J
De Tommasi
Nunziatina
N
D029911:Caesalpinia / Q000737:chemistry*; D002240:Carbohydrate Sequence; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010946:Plants, Medicinal / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D021241:Spectrometry, Mass, Electrospray Ionization; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*; D014687:Venezuela
D012503:Saponins; D014315:Triterpenes