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. 2013 Aug 14;19(37):12294–12305. doi: 10.1002/chem.201301907

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© 2013 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the Creative Commons Attribution Non-Commercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.

Re-use of this article is permitted in accordance with the Creative Commons Deed, Attribution 2.5, which does not permit commercial exploitation.

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NMR analysis of the sugar ester moieties at the propionic acid side chain of: A) Ma-FCC-64, B) Ma-FCC-63, and C) Ma-FCC-69 (R=(3,4-dihydroxyphenyl)-ethyl group) based on 2D correlations (600 MHz, CD₃CN/D₂O 9:1 (v/v) or CD₃CN (Ma-FCC-69), 10 °C). Left: Graphical representations of assigned ¹H NMR signals and of homonuclear ¹H,¹H correlations: bold lines refer to COSY spectra, arrows to ROESY spectra. Right: Assigned signals of ¹³C atoms from heteronuclear ¹H,¹³C correlations; shadowed boxes indicate ¹³C assignments from direct correlations (HSQC spectra), arrows point to ¹³C assignments from long-range couplings with H atoms, as seen in HMBC spectra.