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Antifungal Polyphenols from Cordia goetzei Gürke
Author(s) -
Marston Andrew,
Zagorski Michael G.,
Hostettmann Kurt
Publication year - 1988
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19880710532
Subject(s) - chemistry , polyphenol , boraginaceae , antifungal , derivative (finance) , pigment , bark (sound) , organic chemistry , stereochemistry , botany , antioxidant , microbiology and biotechnology , physics , acoustics , financial economics , economics , biology
Four highly oxygenated polyphenols 1 – 4 , have been isolated from the stem bark of Cordia goetzei Gürke (Boraginaceae) and their structures elucidated by a combination of one‐ and two‐dimensional (including COLOC) NMR spectroscopic techniques, mass spectroscopy, and chemical methods. The first new compound, cordigone (1) , is a tetrahydrofuran derivative and the second one, cordigol (2) , a furobenzopyran derivative. The benzofurans 3 and 4 are orange pigments, responsible for the coloration of the stem bark of the tree. All four polyphenols are fungicidal against cladosporium cucumerinum .