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Conformational behaviour of glycomimetics: NMR and molecular modelling studies of the C-glycoside analogue of the disaccharide methyl beta-D-galactopyranosyl-(1-->3)-beta-D-glucopyranoside. 2007
Paloma Vidal, and
Boris Vauzeilles, and
Yves Blériot, and
Matthieu Sollogoub, and
Pierre Sinaÿ, and
Jesús Jiménez-Barbero, and
Juan F Espinosa
Discovery Chemistry Research and Technologies, Centro de Investigación Lilly, Avenida de la Industria 30, 28108 Alcobendas, Madrid, Spain.
The conformational behaviour of the C-glycoside beta-C-Gal-(1-->3)-beta-Glc-OMe (1) has been studied using a combination of molecular mechanics and NMR spectroscopy (proton-proton coupling constants and nuclear Overhauser effects). It is shown that the C-disaccharide populates two distinctive conformational families in solution, the normal syn-psi conformation, which is the predominating conformation of parent O-glycoside 2, and the anti-psi conformation, which has not been detected for the O-disaccharide.
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Juan F Espinosa
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Jesús Jiménez-Barbero, and
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