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Nuclear overhauser effects and conformations of branched trisaccharide methyl β-glycosides that contain a 3,4-disubstituted galactose residue

✍ Scribed by Grigory M. Lipkind; Alexander S. Shashkov; Oleg A. Nechaev; Vladimir I. Torgov; Vladimir N. Shibaev; Nikolay K. Kochetkov

Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
988 KB
Volume
195
Category
Article
ISSN
0008-6215

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✦ Synopsis

N.O.e. data after pre-irradiation of the anomeric protons and the 3JC,H values associated with the glycosidic linkages for a series of methyl beta-glycosides of trisaccharides that contain 3,4-disubstituted galactose residues have been measured. On the basis of the experimental results and theoretical calculations, it was shown that one preferred conformer (less than 90%) was present for each trisaccharide derivative.

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Nuclear overhauser effects and conformat
Nuclear overhauser effects and conformations of branched trisaccharide methyl β-glycosides that contain a 2,3-disubstituted galactose residue
✍ Grigory M. Lipkind; Alexander S. Shashkov; Oleg A. Nechaev; Vladimir I. Torgov; 📂 Article 📅 1989 🏛 Elsevier Science 🌐 English ⚖ 664 KB

On the basis of the n.O.e. data and theoretical calculations, it was found that less than 90% of one conformer was present in aqueous solution for each of a series of trisaccharide methyl beta-glycosides with a 2,3-disubstituted galactose residue.

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A conformational study of the vicinally branched trisaccharide β-D-Glcp-(1 → 2)[β-D-Glcp-(1 → 3)]α-D-Manp-OMe by nuclear Overhauser effect spectroscopy (NOESY) and transverse rotating-frame Overhauser effect spectroscopy (TROESY) experiments: Comparison to Monte Carlo and Langevin dynamics simulations
✍ Alexandra Kjellberg; Göran Widmalm 📂 Article 📅 1999 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 109 KB 👁 1 views

The trisaccharide beta-D-Glcp-(1 --> 2)[beta-D-Glcp-(1 --> 3)]alpha-D-Manp-OMe, a model for branching regions in oligosaccharides, has been investigated by one-dimensional DPFGSE (1)H, (1)H nuclear Overhauser effect spectroscopy (NOESY) and transverse rotating-frame Overhauser effect spectroscopy (T