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Conformational analysis of the linear tetramer of the glucose-derived furanoid sugar amino acid 1 by NMR and constrained molecular dynamics studies revealed that the fully protected tetramer 2a has a well-defined structure in CDCl 3 with repeating β-turns, each involving a 10-membered ring structure with intramolecular hydrogen bonds between NH i →CO i−2 . Its deprotected...
Furanoid sugar amino acid based peptide and a dimer fold into pseudo β-turn-like structures in DMSO-d 6 with intramolecular H-bonds between LeuNH and sugarOH. In CDCl 3 , they display a repeating β-turn-type secondary structure at lower concentrations and start to form aggregates that gradually turn into excellent organogels as the concentrations are increased, a phenomenon observed...
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