A new triterpenoid glycoside, heterobetulinic acid 3-O-β-D-glucopyranosyl(1 → 2)-β-D-xylopyranoside (1), together with a new phenylacrylic acid derivative, 3'S,4'-dihydroxyl-2'-methylene-but-1'-enyl caffeate (2), were isolated from the roots of Ilex pubescens. Their structures were elucidated by HR-ESI-MS, 1-D and 2-D NMR analyses and chemical methods. In addition, the absolute configuration of 2 was established by the application of a modified Mosher's method.
- Magnetic Resonance Spectroscopy
- Plant Roots
- Spectrometry, Mass, Electrospray Ionization
- Journal Article
- Research Support, Non-U.S. Gov't
ASJC Scopus subject areas
- Immunology and Microbiology(all)