Secondary metabolites from Paronychia argentea.
Two new oleanane saponins (1 and 2) and one new flavonol glycoside (3) together with six known flavonoids, were isolated from the aerial parts of Paronychia argentea. Their structures were elucidated by 1D and 2D NMR experiments including 1D-TOCSY, DQF-COSY, NOESY, HSQC, and HMBC spectroscopy, as well as ESI-MS analysis.
Dipartimento di Chimica Bioorganica e Biofarmacia, Università di Pisa, Via Bonanno 33, 56126 Pisa, Italy. braca@farm.unipi.it
Alessandra
A
Braca
Ammar
A
Bader
Tiziana
T
Siciliano
Nunziatina
N
De Tommasi
D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010304:Paronychia / Q000378:metabolism*; D035261:Plant Components, Aerial / Q000378:metabolism; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D021241:Spectrometry, Mass, Electrospray Ionization
D005419:Flavonoids; D012503:Saponins