1. Chlorinated bianthrones from the cyanolichen Nephroma laevigatum.
- Author
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Lagarde A, Mambu L, Mai PY, Champavier Y, Stigliani JL, Beniddir MA, and Millot M
- Subjects
- Anthracenes isolation & purification, Anthraquinones isolation & purification, France, Magnetic Resonance Spectroscopy, Molecular Structure, Tandem Mass Spectrometry, Anthracenes chemistry, Anthraquinones chemistry, Ascomycota chemistry, Lichens chemistry
- Abstract
While depsidones, depsides or dibenzofuran-like compounds dominate the chemical composition of lichens, the cyanolichen Nephroma laevigatum affords a diversity of quinoid pigments represented by chlorinated anthraquinones derived from emodin and new bianthrones resulting from the homo- or heterodimerization of monomers. Bianthrones were pointed out from the dichloromethane extract by MS/MS-based molecular networking, then isolated and characterized on the basis of extensive spectroscopic analyzes and GIAO NMR shift calculation followed by CP3 analyzes., (Copyright © 2020 Elsevier B.V. All rights reserved.)
- Published
- 2021
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