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Diterpene glycosides and phenolic compounds from the fruits of Xanthium strumarium
Author(s) -
Van Kiem Phan,
Hoang Nguyen Huy,
Thu Vu Kim,
Tai Bui Huu,
Nhiem Nguyen Xuan
Publication year - 2020
Publication title -
vietnam journal of chemistry
Language(s) - English
Resource type - Journals
eISSN - 2572-8288
pISSN - 0866-7144
DOI - 10.1002/vjch.202000061
Subject(s) - diterpene , xanthium , glycoside , traditional medicine , chemistry , stereochemistry , botany , biology , medicine
Seven compounds including two diterpene glucosides atractyloside ( 1 ), carboxyatractyloside ( 2 ), and five phenolic compounds as 5‐ O ‐caffeoylquinic acid ( 3 ), 1,5‐di‐ O ‐caffeoylquinic acid ( 4 ), 2,3‐dihydroxy‐1‐(4(hydroxy‐3‐methoxyphenyl)‐propa n‐ 1‐one ( 5 ), ( erythro )‐1,2‐bis(4‐hydroxy‐3‐methoxyphenyl)‐1,3‐propandiol ( 6 ), and p ‐hydroxybenzaldehyde ( 7 ) were isolated from the fruits of Xanthium strumarium . Their chemical structures were determined using ESI‐MS, 1D NMR, and 2D NMR spectra as well as by comparison of the spectral data with those reported in the literature. Compounds 4 and 5 were reported from Xanthium genus for the first time. To our best knowledge, all these compounds were firstly reported from X. strumarium growing in Vietnam.