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Updated: May 28, 2026

High-resolution Tandem Mass Spectrometry for Studying Chemical Constituents of Gynura bicolor DC
Published on: February 2, 2024
[Chemical constituents of Excoecaria acerifclia]
Jiang Hu1, Lanchun Zhang, Qinshi Zhao
1State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, Yunnan, P. R. China.
Objective:
To study the chemical constituents of Excoecaria acerifclia.
Method:
Column chromatography on Silica gel and Sephadex LH-20 were applied for isolation and purification of the constituents. The structures were elucidated on the basis of spectrascopic analysis, chemical evidences and by comparison with the data reported in the literature.
Result:
From the crude EtOAc fraction of Excoecaria acerifclia F. Didr, 14 compounds were isolated and identified as 7,8-trans-4,5,9-trihydroxy-3,3',9'-trimethoxy-7-O-5',8-O-4'-neolignan (1), 7,8-trans 4,5,9,9'-tetrahydroxy-3,3'-dimethoxy-7-O-5',8-O-4'-neolignan (2), malloapelin C (3), sy-ringaresinol (4), 2alpha,3beta,24-trihydroxy-12-ursen-28-oic acid (5), 11-hydroxy-3-oxo-12-ursen-28-oic acid (6), 6-hydroxy-20 (29)-lupen-3-one (7), isolupenyl acetate (8), kaempferol (9), quercetin (10), apigenin (11), catechin (12), kamepferol-3-O-beta-D-galactopyranoside (13), and catechin (6-->8) catechin (14).
Conclusions:
Compound 1 was new, the remained compounds were isolated and identified from E. acerifclia for the first time. Among them, compounds 5-8 are triterpenoids, while the other compounds are phenylpropanoids.
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