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New isoflavonoids from Erythrina arborescens and structure revision of anagyroidisoflavone A |
Fei WANGa,b, Xu-Long LIa, Guo-Zhu WEIa, Fu-Cai RENa, Ji-Kai LIUb |
a BioBioPha Co., Ltd., Kunming 650201, China; b State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China |
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Abstract Five hitherto unknown isoflavonoids, namely erythrinins D-H (1-5), were isolated from the ethanol extract of Erythrina arborescens. Their structures were elucidated on the basis of extensive spectroscopic studies. In addition, the structure of anagyroidisoflavone A (6a) has been revised as 1"-O-methylerythrinin F (6) by re-analysis of the original spectroscopic data.
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Keywords
Erythrina arborescens
isoflavonoid
erythrinin
structure revision
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Fund:This work was financially supported by the "Large-scale Compound Library" project of the National Development and Reform Commission of China, the National Basic Research Program of China (973 Program) 2009CB522300, and the "Western Light" talents training program of Chinese Academy of Sciences. |
Issue Date: 11 February 2018
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