title: Coumarins from Edgeworthia chrysantha.
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.
authors: College of Pharmaceutical Science, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, China.
authors: Xing-Nuo
authors: XN
authors: Li
authors: College of Pharmaceutical Science, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, China.
authors: Sheng-Qiang
authors: SQ
authors: Tong
authors: College of Pharmaceutical Science, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, China.
authors: Dong-Ping
authors: DP
authors: Cheng
authors: College of Pharmaceutical Science, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, China. liqy@zjut.edu.cn.
authors: Qing-Yong
authors: QY
authors: Li
authors: College of Pharmaceutical Science, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, China. yjz@zjut.edu.cn.
authors: Ji-Zhong
authors: JZ
authors: Yan
mesh_terms: D000107:Acetylation; D003374:Coumarins / Q000737:chemistry* / Q000302:isolation & purification; D035264:Flowers / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D009005:Monosaccharides / Q000737:chemistry / Q000302:isolation & purification; D018517:Plant Roots / Q000737:chemistry; D029645:Thymelaeaceae / Q000737:chemistry*; D014468:Umbelliferones / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D003374:Coumarins; D009005:Monosaccharides; D014468:Umbelliferones; C532220:edgeworoside A; C496796:edgeworoside C; C035316:daphnoretin; C031477:7-hydroxycoumarin