Omnia SanaPhenolic constituents of Knautia arvensis aerial parts
Abstract
A new C-6 flavone glycoside (6), together with seven known compounds, cryptochlorogenic acid (1), chlorogenic acid (2), 2-O-trans-caffeoylhydrocitric acid (3), isovitexin 7-beta-D-glucopyranoside (4), 7,4'-dihydroxy-5-methoxyflavone-6-C-beta-D-glucopyranoside (5), 3,5-O-dicaffeoylquinic acid (7) and 4,5-O-dicaffeoylquinic acid (8), were isolated from the aerial parts of Knautia arvensis. Their structures were elucidated by extensive spectroscopic methods including 1D- (1H, 13C and TOCSY) and 2D-NMR (DQF-COSY, HSQC, HMBC) experiments, as well as ESIMS analysis. Compounds 1, 3-5 and 8 are reported for the first time in Knautia arvensis.
Referenced for these plants
How to cite
Moldoch, J. and Szajwaj, B. and Masullo, M. and Pecio, L. and Oleszek, W. and Piacente, S. and Stochmal, A (2011) 'Phenolic constituents of Knautia arvensis aerial parts', Natural Product Communications, 6(11), pp. 1627-1630. doi:10.1177/1934578x1100601117
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