Coumarins from Edgeworthia chrysantha

A new coumarin, edgeworic acid (1), was isolated from the flower buds of Edgeworthia chrysantha, together with the five known coumarins umbelliferone (2), 5,7-dimethoxycoumarin (3), daphnoretin (4), edgeworoside C (5), and edgeworoside A (6). Their structures were established on the basis of spectr...

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Bibliographic Details
Published in:Molecules
Main Authors: Xing-Nuo Li, Sheng-Qiang Tong, Dong-Ping Cheng, Qing-Yong Li, Ji-Zhong Yan
Format: Article
Language:English
Published: MDPI AG 2014-02-01
Subjects:
coumarin
Edgeworthia chrysantha
flower buds
edgeworic acid
Online Access:http://www.mdpi.com/1420-3049/19/2/2042
Description
Summary:A new coumarin, edgeworic acid (1), was isolated from the flower buds of Edgeworthia chrysantha, together with the five known coumarins umbelliferone (2), 5,7-dimethoxycoumarin (3), daphnoretin (4), edgeworoside C (5), and edgeworoside A (6). Their structures were established on the basis of spectral data, particularly by the use of 1D NMR and several 2D shift-correlated NMR pulse sequences (1H-1H COSY, HSQC and HMBC), in combination with acetylation reactions.
ISSN:1420-3049

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