A new xanthone glycoside from Pyrrosia sheareri

Abstract

A new xanthone glycoside, 3,5,7,8-tetramethoxyxanthone-1-O-β-D-glucopyranoside (1), along with five known compounds, mangiferin (2), kaempferol (3), quercetin (4), chlorogenic acid (5) and diploptene (6), was isolated from the whole plants of Pyrrosia sheareri (Bak.) Ching. The structure of compound 1 was established on the basis of extensive spectroscopic analyses and chemical methods.

Graphical Abstract

Keywords:

• Pyrrosia sheareri (Bak.) Ching
• xanthone glycoside
• 3,5,7,8-tetramethoxyxanthone-1-O-β-D-glucopyranoside

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was financially supported by the Science and Technology Foundation of Guizhou Province [grant number J (2013) 2071], the Science and Technology Foundation of Administration of Traditional Chinese Medicine of Guizhou Province [grant number qzyy-2014-087], and the Youth Science and Technology Talent Project of Guizhou Province [grant number (2017) 5618].