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Molecules 2014, 19(2), 2042-2048; doi:10.3390/molecules19022042
Article

Coumarins from Edgeworthia chrysantha

, , , *  and *
College of Pharmaceutical Science, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, China
* Authors to whom correspondence should be addressed.
Received: 9 January 2014 / Revised: 23 January 2014 / Accepted: 23 January 2014 / Published: 13 February 2014
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Abstract

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.
Keywords: coumarin; Edgeworthia chrysantha; flower buds; edgeworic acid coumarin; Edgeworthia chrysantha; flower buds; edgeworic acid
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Li, X.-N.; Tong, S.-Q.; Cheng, D.-P.; Li, Q.-Y.; Yan, J.-Z. Coumarins from Edgeworthia chrysantha. Molecules 2014, 19, 2042-2048.

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