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New Naphthalene‐Chroman Coupling Products from the Endophytic Fungus, Nodulisporium sp. from Erica arborea
Author(s) -
Dai Jingqiu,
Krohn Karsten,
Draeger Siegfried,
Schulz Barbara
Publication year - 2009
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/ejoc.200801106
Subject(s) - chemistry , two dimensional nuclear magnetic resonance spectroscopy , stereochemistry , antifungal , hydroxymethyl , naphthalene , carbon 13 nmr , fungus , organic chemistry , botany , microbiology and biotechnology , biology
Six novel metabolites, nodulisporins D–F ( 1 – 3 ), (3 S ,4 S ,5 R )‐2,4,6‐trimethyloct‐6‐ene‐3,5‐diol ( 4 ), 5‐hydroxy‐2‐hydroxymethyl‐4 H ‐chromen‐4‐one ( 5 ) and 3‐(2,3‐dihydroxyphenoxy)butanoic acid ( 6 ) were isolated together with seven known compounds ( 7 – 13 ) from the culture extract of the endophytic fungus Nodulisporium sp. The relative configurations of these new compounds were determined by means of spectroscopic data, including HREIMS, 1 H NMR, 13 C NMR and 2D NMR (HMQC, HMBC and NOESY). The novel compounds exhibit antifungal and antialgal activities and most of them were also antibacterial.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)