New isoflavonoids from <i>Erythrina arborescens</i> and structure revision of anagyroidisoflavone A

doi:10.1007/s13659-013-0062-3

Natural Products and Bioprospecting

2013, Vol. 3

Issue (5) : 238-242 DOI: 10.1007/s13659-013-0062-3

Regular Article

New isoflavonoids from Erythrina arborescens and structure revision of anagyroidisoflavone A

Fei WANG^a,b, Xu-Long LI^a, Guo-Zhu WEI^a, Fu-Cai REN^a, Ji-Kai LIU^b

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.

Keywords Erythrina arborescens isoflavonoid erythrinin structure revision

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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Fei WANG,Xu-Long LI,Guo-Zhu WEI, et al. New isoflavonoids from Erythrina arborescens and structure revision of anagyroidisoflavone A[J]. Natural Products and Bioprospecting, 2013, 3(5): 238-242.

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http://npb.kib.ac.cn/EN/10.1007/s13659-013-0062-3 OR http://npb.kib.ac.cn/EN/Y2013/V3/I5/238

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