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Original Articles

Bioactive megastigmane glucosides and monoterpenes from Lyonia ovalifolia

, , , , , , , & show all
Pages 559-572 | Received 04 Sep 2017, Accepted 04 Aug 2018, Published online: 26 Dec 2018
 

Abstract

Three new megastigmane glucosides (1–3) and two new monoterpenes (4–5), together with 14 related known compounds (6–19) were isolated from the twigs and leaves of Lyonia ovalifolia. The structures of the new compounds were determined by extensive MS, NMR, CD experiments and chemical methods. Compounds 2, 6, and 18 displayed potent antiviral activity against Coxsackie B3, with IC50 values between 6.4 and 14.6 µM. Additionally, compounds 6, 10, and 11 exhibited noteworthy anti-inflammatory activities, with inhibition rates ranging from 54.55% to 83.33% under the concentration of 10−5 M.

Acknowledgments

The authors are grateful to the Department of Instrumental Analysis of Peking Union Medical College for the spectroscopic measurements.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was financially supported by grants from the National Natural Science Foundation of China (Nos. 81573321 and 21572274).

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