Abstract
The solid state and solution phase conformational preferences of a homologous series of beta-peptides derived from (S,S)-2-aminocyclopentanecarboxylic acid (transpentacin) have been investigated using a variety of spectroscopic and crystallographic techniques. These studies indicate that the hexamer and pentamer persist as a 12-helix in both the solid state and solution phase. Although the conformational traits of a 12-helix are exhibited by oligomers with as few as three residues in the solid state, in solution the trimer exists as an equilibrium of many alternative conformers whilst the tetramer has been shown to predominantly exist in either a 12-helix or a turn-type conformation. (C) 2010 Elsevier Ltd. All rights reserved.
Original language | English |
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Pages (from-to) | 1797-1815 |
Number of pages | 19 |
Journal | Tetrahedron: Asymmetry |
Volume | 21 |
Issue number | 13-14 |
DOIs | |
Publication status | Published - 14 Jul 2010 |
Keywords
- 2-AMINOCYCLOPENTANECARBOXYLIC ACID-DERIVATIVES
- HELICAL SECONDARY STRUCTURE
- DE-NOVO DESIGN
- ASYMMETRIC-SYNTHESIS
- AQUEOUS-SOLUTION
- FOLDAMERS
- RESIDUES
- (-)-(1R,2S)-CISPENTACIN
- HEXAPEPTIDE
- RESOLUTION