Abstract
Three new phenolic glycosides, named as glycopentosides A–C (1–3), along with nine known compounds were isolated from the n-BuOH extract of stems of Glycosmis pentaphylla. Their structures were determined by using spectroscopic and chemical methods. Bioassay showed that compound 10 (tachioside) could inhibit nitric oxide production in lipopolysaccharides-stimulated RAW 264.7 cells with IC50 value of 12.14 μM.
Acknowledgments
This work was financially supported by the Natural Science Foundation of Hubei Province, China (2013CFB450 and 2013CFA013) and Grant of National Key Technology R&D Program in the 12th Five Year Plan of China (2012BAI27B06).