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1. Conformational studies of the linear homooligomers of a glucose-derived furanoid sugar amino acid

Author

Chakraborty, Tushar K., Srinivasu, P., Sakunthala Madhavendra, S., Kiran Kumar, S., and Kunwar, Ajit C.

Subjects
*AMINO acids, *OLIGOMERS, *HYDROGEN bonding, *NUCLEAR magnetic resonance
Abstract

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 CDCl3 with repeating β-turns, each involving a 10-membered ring structure with intramolecular hydrogen bonds between NHi → C&z.dbnd6;Oi−2. Its deprotected versions 2b and 2c showed aggregation in organic solvents with structures similar to that of 2a. [Copyright &y& Elsevier]

Published
2004
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