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Updated: Feb 12, 2026

Isolation and Biophysical Study of Fruit Cuticles
Published on: March 30, 2012
[A new dimeric xanthanolide from fruits of Xanthium chinense]
Peng-Fei Wang1, Shi-Dong Deng1, Jing Qu1
1State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
Abstract:
Through the methods of polyamide resin, Sephadex LH-20, ODS column chromatography and preparative HPLC etc., 7 compounds were isolated from the 70% ethanol extract of the fruits of Xanthium chinense. Based on ESI-MS and NMR data, the structures of these compounds were identified as pungiolide O(1), grasshopper ketone(2), icariside F₂(3), 7-[(β-D-apiofuranosyl-(1→6)-β-D-glucopyranosyl)oxymethy]-8,8-dimethyl-4,8-dihydrobenzo[1,4]thiazine-3,5-dione(4),(6R,9S)-3-oxo-α-ionol β-D-glucopyranoside(5), cryptochlorogenic acid methyl ester(6), and chlorogenic acid methyl ester(7). Among them, compound 1 is a new compound.
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