Synthesis of 310-Helix-Inducing Constrained Analogues of l-Proline
摘要:
A bicyclic indolizidinone carboxylic acid and a tricyclic constrained analogue Of L-proline were synthesized and evaluated for their ability to induce helix formation as L-Ala tetrapeptides. Variable-temperature NMR, DMSO titration, CD spectra, and X-ray structure analyses, in conjunction with molecular modeling, confirmed the existence of 3(10)-helical motifs with di- and tetrapeptides Of L-Ala.
Synthesis of 310-Helix-Inducing Constrained Analogues of l-Proline
摘要:
A bicyclic indolizidinone carboxylic acid and a tricyclic constrained analogue Of L-proline were synthesized and evaluated for their ability to induce helix formation as L-Ala tetrapeptides. Variable-temperature NMR, DMSO titration, CD spectra, and X-ray structure analyses, in conjunction with molecular modeling, confirmed the existence of 3(10)-helical motifs with di- and tetrapeptides Of L-Ala.