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Title

New and old NMR experiments for the resonance assignment of complex oligosaccharides-application to a cyclodextrin derivative

Authors
Plainchont, B.
Tisse, S.
Bouillon, J.-P.
Pilard, F.
Wieruszeski, J.-M.
Lippens, G.
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Published in Magnetic Resonance in Chemistry. 2011, vol. 49, no. 12, p. 781-787
Abstract The complete assignment of the 1H and 13C sugar resonances in mono-3,6-anhydro-heptakis(2,3-O-methyl)-hexakis(6-O-methyl)-β-cyclodextrin, an asymmetrically functionalized β-cyclodextrin, was carried out by means of 2D NMR experiments. The TOCSY and the homonuclear multiple relay COSY spectra provided most of the 1H assignments. The multiplicity edited HSQC and a set of F1 selective HSQC-TOCSY and multiple relay HSQC-COSY spectra gave access to most of the 13C chemical shifts. The latter were fully and accurately determined by means of a pair of complementary, highly folded HSQC-TOCSY spectra. The TOCSY-ROESY and ROESY-TOCSY spectra yielded the sequential assignment of the sugar units. A high resolution F1 selective F1 decoupled version of the TOCSY-ROESY experiment was recorded.
Keywords NMR1H13CCyclodextrinAssignmentSelective pulsesResolution enhancementAliasingSequential assignment
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Other version: http://doi.wiley.com/10.1002/mrc.2828
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PLAINCHONT, B. et al. New and old NMR experiments for the resonance assignment of complex oligosaccharides-application to a cyclodextrin derivative. In: Magnetic Resonance in Chemistry, 2011, vol. 49, n° 12, p. 781-787. https://archive-ouverte.unige.ch/unige:17801

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Deposited on : 2011-12-15

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