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Updated: May 11, 2026

High-resolution Tandem Mass Spectrometry for Studying Chemical Constituents of Gynura bicolor DC
Published on: February 2, 2024
[Chemical constituents from Pachysandra terminalis]
Hui-Jun Xiao1, Chen-Yang Li, Sheng-An Tang
1School of Pharmacy, Research Center of Basic Medical Sciences, Tianjin Key Laboratory on Technologies Enabling Development Clinical Therapeutics and Diagnostics, Tianjin Medical University, Tianjin 300070, China. hedy_xiao@163.com
Abstract:
To study chemical constituents from Pachysandra terminalis. By repeated column chromatography, including silica gel, Toyopearl HW-40, and preparative HPLC, four new (14) and one known (5) compounds were isolated and purified. On the basis of spectral data analysis, the structure of isolated compounds were elucidated as follow: 2-methyl-3-methylenepentane-1, 2, 5-triol (1), 4-methyl-3-methylenepentane-1, 2, 5-triol (2), 4-methyl-3-methylenepentane-1, 2, 5-triol-5-O-beta-D-glucopyranoside (3), 4-methyl-3-methylenep- entane-1, 2, 5-triol-1-O-beta-D-glucopyranoside (4), (7S, 8R, 8' R)-(+)-lariciresinol-9-O-beta-D-glucopyrano-side (5). Compound 5 was isolated from this genus for the first time.
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