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Published on: February 2, 2024
Two new compounds from the roots of Ilex pubescens
Ting Wu1, Qing-Wen Zhang, Xiao-Qi Zhang
1Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, P.R. China.
Abstract:
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.