Premium
New Massarilactones, Massarigenin E, and Coniothyrenol, Isolated from the Endophytic Fungus Coniothyrium sp. from Carpobrotus edulis
Author(s) -
Kock Ines,
Krohn Karsten,
Egold Hans,
Draeger Siegfried,
Schulz Barbara,
Rheinheimer Joachim
Publication year - 2007
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.200600987
Subject(s) - chemistry , chirality (physics) , stereochemistry , xanthene , two dimensional nuclear magnetic resonance spectroscopy , nuclear magnetic resonance spectroscopy , organic chemistry , physics , chiral symmetry breaking , quantum mechanics , nambu–jona lasinio model , quark
New massarilactones C ( 3 ) and D ( 4 ), massarigenin E ( 5 ), and coniothyrenol ( 6 ) were isolated from Coniothyrium sp. together with the known graphislactone A ( 1 ) and massarilactone A ( 2 ). The relative configuration of coniothyrenol ( 6 ) with an unprecedented benzo[ a ]xanthene skeleton and ten chirality centers was determined by 1D‐ and 2D‐NMR spectroscopy.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)