New Flavone C-Glycosides from Scleranthus perennis and Their Anti-Collagenase Activity.

ABSTRACT: Three new flavone glycosides, one known flavone glycoside, and the phenolic derivative apiopaenonside were isolated and identified from the ethyl acetate fraction of the aerial parts of Scleranthus perennis. The planar structures were elucidated through extensive analysis of UV-Vis, IR, and 1H NMR and 13C NMR spectral data, including the 2D techniques COSY, HSQC, and HMBC, as well as ESI mass spectrometry. The isolated compounds were established as 5,7,3'-trihydroxy-4'-acetoxyflavone-8-C-β-d-xylopyranoside-2''-O-glucoside (1), 5,7,3'-trihydroxy-4'-methoxyflavone-8-C-β-d-xylopyranoside-2''-O-glucoside (2), 5,7-dihydroxy-3'-methoxy-4'-acetoxyflavone-8-C-β-d-xylopyranoside-2''-O-glucoside (3), 5,7-dihydroxy-3'-methoxy-4'-acetoxyflavone-8-C-β-d-xylopyranoside-2''-O-(4'''-acetoxy)-glucoside (4)

SUBMITTER: Jakimiuk K 

PROVIDER: S-EPMC8468783 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature