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 spectra...

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Detalles Bibliográficos
Autores principales: Li, Xing-Nuo, Tong, Sheng-Qiang, Cheng, Dong-Ping, Li, Qing-Yong, Yan, Ji-Zhong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2014
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6270942/
https://www.ncbi.nlm.nih.gov/pubmed/24531219
http://dx.doi.org/10.3390/molecules19022042
Descripción
Sumario: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 ((1)H-(1)H COSY, HSQC and HMBC), in combination with acetylation reactions.

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