7-O-Methyltetrahydroochnaflavone, a new biflavanone from Ochna beddomei.
7-O-Methyltetrahydroochnaflavone (1), a new biflavanone, together with nine known flavonoids, afrormosin (2), 2,3-dihydroochnaflavone 7-O-methyl ether (3), kaempferol (4), 2,3-dihydroochnaflavone (5), ochnaflavone (6), (-)-epicatechin (7), kaempferol 3-O-rhamnoside (8), taxifolin 3-O-rhamnoside (9), and kaempferol 3-O-glucoside (10), were isolated from the leaves of Ochna beddomei, and the structures were elucidated by spectral and chemical studies.
Jayaprakasam
B
B
Natural Products Division, Department of Chemistry, Sri Venkateswara University, Tirupati 517 502, India.
Damu
A G
AG
Rao
K V
KV
Gunasekar
D
D
Blond
A
A
Bodo
B
B
D044946:Biflavonoids; D002942:Circular Dichroism; D005419:Flavonoids / Q000737:chemistry* / Q000302:isolation & purification; D007194:India; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D010946:Plants, Medicinal / Q000737:chemistry*; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet
C409611:7-O-methyltetrahydroochnaflavone; D044946:Biflavonoids; D005419:Flavonoids