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A new 7-oxygenated coumarin from Clausena suffruticosa
Authors:Rokeya Begum  Mohammad S. Rahman  Sarwaruddin Chowdhury  M. Mukhlesur Rahman  Simon Gibbons  Mohammad A. Rashid
Affiliation:1. Department of Applied Chemistry and Chemical Technology, University of Dhaka, Dhaka-1000, Bangladesh;2. Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Dhaka, Dhaka-1000, Bangladesh;3. Department of Pharmaceutical and Biological Chemistry, The School of Pharmacy, University of London, 29–39 Brunswick Square, London WC1N 1AX, UK
Abstract:
A new coumarin, 7-[(2′E,6′E)-7′-carboxy-5′(ζ)-hydroxy-3′-methylocta-2′,6′-dienyloxy]-coumarin, was isolated from the leaf of Clausena suffruticosa. Its structure was established by means of spectroscopic data analyses, including mass spectrometry and both 1D and 2D NMR spectroscopy.
Keywords:Clausena suffruticosa   Rutaceae   Coumarin   7-[(2&prime  E,6&prime  E)-7&prime  -carboxy-5&prime  (ζ)-hydroxy-3&prime  -methylocta-2&prime  ,6&prime  -dienyloxy]-coumarin
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