Abstract
Three new compounds, (8S)-2,2,7,7-tetramethyl-8-hydroxymethyl-6H-indanone-(2,3-b)-2H-pyran-9-O-β-d-glucopyranoside (1), (7S,8S)-2,2,7-trimethyl-7-hydroxymethyl-8-hydroxy-2,7,8,9-tetrahydro-6H-naphtho-(2,3-b)-pyran-10-O-β-d-glucopyranoside (2), 1-deoxy-1-(3,4-dihydro-7-methyl-2,3-dioxo-1(2H)-quinoxalinyl)pentitol-6-carboxylic acid (3), as well as six known compounds (4–9), were obtained. Their structures were determined by spectroscopy and comparison with NMR data of related compounds. Absolute configurations were determined by ECD spectroscopy. The hepatoprotective effects of these compounds were investigated on HepG2 and LO2 cells lines; compounds 1, 2, and 4 displayed moderate activity.
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