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Xanthanolides in Xanthium L.: Structures, Synthesis and Bioactivity.

Jiaojiao ZhangRongmei ZhaoLu JinLe PanDongyu Lei
Published in: Molecules (Basel, Switzerland) (2022)
Xanthanolides were particularly characteristic of the genus Xanthium , which exhibited broad biological effects and have drawn much attention in pharmacological application. The review surveyed the structures and bioactivities of the xanthanolides in the genus Xanthium , and summarized the synthesis tactics of xanthanolides. The results indicated that over 30 naturally occurring xanthanolides have been isolated from the genus Xanthium in monomeric, dimeric and trimeric forms. The bioassay-guided fractionation studies suggested that the effective fractions on antitumor activities were mostly from weak polar solvents, and xanthatin ( 1 ) was the most effective and well-studied xanthanolide. The varieties of structures and structure-activity relationships of the xanthanolides had provided the promising skeleton for the further study. The review aimed at providing guidance for the efficient preparation and the potential prospects of the xanthanolides in the medicinal industry.
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