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New isoflavonoids from Erythrina arborescens and structure revision of anagyroidisoflavone A

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.

Electronic Supplementary Material

Supplementary material is available for this article at 10.1007/s13659-013-0062-3 and is accessible for authorized users.

SUBMITTER: Wang F

PROVIDER: S-EPMC4131621 | biostudies-literature |

REPOSITORIES: biostudies-literature

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