Synthesis of 3<sub>10</sub>-Helix-Inducing Constrained Analogues of <scp>l</scp>-Proline
作者:Stephen Hanessian、Gianluca Papeo、Kamal Fettis、Eric Therrien、Minh Tan Phan Viet
DOI:10.1021/jo0401422
日期:2004.7.1
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.