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Abstract
A new eudesmane sesquiterpene glycoside, ophiopogonoside B (1), along with five known compounds, ophiopogonoside A (2), ruscogenin-1-O-[β-d-glucopyranosyl (1 → 2)]-[β-d-xylopyranosyl (1 → 3)]-β-d-fucopyranoside (3), palmitic acid (4), palmitic acid glyceride (5), and β-sitosterol-d-glucopyranoside (6),was isolated from the tuberous roots of Liriope muscari (Decn.) Bailey (Liliaceae). Their structures were confirmed by 1D and 2D NMR spectroscopy. Among them, compounds 1, 2, 4, and 5 were the first reported from the genus Liriope. Ophiopogonoside B (1) showed moderate inhibitory activity to glycogen phosphorylase a.
Acknowledgment
This project was financially supported by National Key Technology R&D Program of China (No. 2006BAI09B05-06).