Abstract
Three new monoterpene glycosides, sibiraglycoside L (1), M (2), N (3) and one new sorbitol ester, resibirate (4), together with four known compounds including caffeic acid glucitol ester (5), sibiscolacton C (6), geraniol-1-O-[α-l-rhamnopyranosyl-(1→6)-1-β-d-glucopyranoside] (7), and sibiraglycoside K (8), respectively, were isolated from an aqueous extract of the aerial portion of Sibiraea angustata. Their structures were elucidated on the basis of extensive spectroscopic data analysis (including 13CNMR,1HNMR, HSQC, HMBC,1H-1H COSY, ROESY, HRESIMS, MS and CD experiments) and comparison to previously reported data. In addition, a preliminary evaluation of the hypolipidemic activities of these compounds is presented, some compounds showed moderate hypolipidemic activities in HepG2 cells.
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