Results 161 to 170 of about 271 (211)

Conformation and intermolecular interactions of carbohydrate chains

Journal of Supramolecular Structure, 1977
AbstractFor consideration of their conformations and interactions, carbohydrate chains can conveniently be divided into 3 classes on the basis of their covalent structure; namely periodic (a), interrupted periodic (b), and aperiodic (c) types. In aqueous solution carbohydrate chains often exist as highly disordered random coils.
E R, Morris, D A, Rees, D, Thom, E J, Welsh   +3 more
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Optical activity and conformation of carbohydrates

Carbohydrate Research, 1971
Abstract The methyl 2-acetamido-2-deoxy-α- and β- D -mannopyranosides and their corresponding furanosides have been prepared by treatment of 2-acetamido-2-deoxy- D -mannose with methanol in the presence of Amberlite IR-120 (H+) and separation on Dowex-1 ion-exchange resin and by paper chromatography.
Sherman Beychok, Gilbert Ashwell, Elvin A. Kabat   +2 more
openaire   +1 more source

Computation techniques in the conformational analysis of carbohydrates

Russian Journal of Bioorganic Chemistry, 2007
A growing number of modern studies of carbohydrates is devoted to spatial mechanisms of their participation in the cell recognition processes and directed design of inhibitors of these processes. Any progress in this field is impossible without the development of theoretical conformational analysis of carbohydrates.
A. G. Gerbst, A. A. Grachev, A. S. Shashkov, N. E. Nifantiev   +3 more
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Structure and Conformation of Carbohydrates

ChemInform, 2001
AbstractFor Abstract see ChemInform Abstract in Full Text.
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The Conformational Free Energy of Carbohydrates

Mini-Reviews in Organic Chemistry, 2011
1. Abstract Although free energy calculations have been extensively employed to explore the conformational space of proteins, to date carbohydrates have received considerably less attention. This review provides a survey of recent computational free energy studies of the preferred conformations and characteristic dynamics of carbohydrate molecules in ...
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Conformational restriction by intramolecular hydrogen bonding. Carbohydrate-carbohydrate self-assembly

Tetrahedron Letters, 1997
Abstract NMR data (chemical shifts, NOEs, coupling constants and variable temperature experiments), FT-IR data and MM2 ∗ molecular mechanics calculations have allowed us to demonstrate that 3-amido-1,6-anhydro-3-deoxy-β-D-glucopyranose acts as a hydroxyl-based interaction unit and provides conformational control of self-recognition processes by ...
Manuela López de la Paz, Gary Ellis, Soledad Penadés, Cristina Vicent   +3 more
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An efficient synthesis of triazolo-carbohydrate mimetics and their conformational analysis

Organic & Biomolecular Chemistry, 2008
A chemical library of 1,2,3-triazole fused carbohydrate mimetics was constructed. To synthesize enantiomerically pure mimetics, we developed a stereo- or diastereodivergent synthetic route from D-glucose, D-mannose and D-galactose as chiral sources. In this synthesis, an In(OTf)(3)-catalyzed tandem azidation-1,3-dipolar cycloaddition reaction of 1,1 ...
Hikaru, Yanai, Shun, Obara, Takeo, Taguchi   +2 more
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Conformational parameters of the carbohydrate moieties of α-arabinonucleosides

Carbohydrate Research, 1981
Abstract The conformations of the sugar moieties of a number of α- d - and - l -arabino-furanosyl nucleosides in solution have been investigated, largely with the aid of a statistical procedure developed for this purpose. The overall results demonstrated the existence, for a broad range of analogs, of a two-state, conformational equilibrium, N⇌S (or
Irena Ekiel, Edward Darżynkiewicz, David Shugar   +2 more
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Newer developments in the conformational analysis of carbohydrates

Pure and Applied Chemistry, 1971
Abstract
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Conformation of carbohydrates

Journal of Structural Chemistry, 1967
K. M. Grushetskii, A. F. Bestsenyi
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