A new flavonoid and other constituents from Centaurea nicaeensis All. var. walliana M
- PMID: 21815723
- DOI: 10.1080/14786419.2010.534995
A new flavonoid and other constituents from Centaurea nicaeensis All. var. walliana M
Abstract
A new flavone glucoside, apigenin 4'-(6″-methylglucuronide) (1), together with six known compounds, cirsilineol, jaceosidin, melitensin, apigenin, apigenin 7-(6″-methylglucuronide) and prunasin, were isolated from the ethanolic extract of the aerial parts of Centaurea nicaeensis All. var. walliana M. (Asteraceae) collected from Souk-Ahras, eastern Algeria. The structures were established by spectral analysis, mainly HRESI-MS, UV and 2D-NMR experiments (COSY, HSQC and HMBC).