NMR study of fumarprotocetraric acid, a complex lichen depsidone derivative from Cladonia furcata

• Published in: Magnetic Resonance in Chemistry
• Main Authors: Su, Bao‐Ning, Cuendet, Muriel, Nikolic, Dejan, Kristinsson, Hördur, Ingólfsdóttir, Kristín, van Breemen, Richard B., Fong, Harry H. S., Pezzuto, John M., Kinghorn, A. Douglas
• Other Authors: National Cancer Institute
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 2003
• Subjects: Doublets; Iceland
• Online Access: http://dx.doi.org/10.1002/mrc.1181; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fmrc.1181; https://onlinelibrary.wiley.com/doi/full/10.1002/mrc.1181

Abstract A lichen depsidone derivative, fumarprotocetraric acid, was obtained as the major constituent of Cladonia furcata (Huds.) Schrad. collected in Iceland. In the 1 H NMR spectrum (in DMSO‐ d 6 ) of this compound, the trans double bond proton signals of the fumaryl unit appeared as overlapping...