the formation of an oxazole ring at the C-terminus. A conformational study of the oxazolone pseudo-peptide showed intramolecular C=O···HN(II) hydrogen bonding in a seven-membered ring leading to a γ-turn conformation. This fact was supported by a solution-state NMR and molecular modeling studies. The oxazolone pseudotetrapeptide was found to be a better Cl−-selective transporter for which an anion–anion
C-3-四取代
呋喃糖
氨基酸衍生的线性四肽的分子内环化提供了
恶唑酮假肽,并在C末端形成了
恶唑环。
恶唑酮假肽的构象研究表明,分子内的C = O··HN(II)氢键结合在7元环中,导致γ转构象。这一事实得到了溶液状态NMR和分子模型研究的支持。
恶唑酮pseudotetrapeptide被认为是一个更好的
氯-成立阴离子阴离子逆向转运机制,其体选择性转运。