描述了化学连接以10到18元环状过渡态从含Trp的肽中的N→N酰基迁移形成天然肽的过程。在这项研究中,报告了一种统计,预测模型,该模型使用了广泛的合成和计算方法来使化学连接合理化。在连接位点处不使用Cys / Ser / Tyr残基或辅助基团的情况下,实现了形成较长天然肽的N→N酰基迁移。这些无痕迹化学连接反应的可行性通过N支持在C键距离Ñ酰基isopeptides。通过使用竞争性实验和理论计算,证明了化学连接的分子内性质是合理的。
Oxyazapeptides: Synthesis, Structure Determination, and Conformational Analysis
作者:Suvendu Biswas、Nader E. Abo-Dya、Alexander Oliferenko、Amir Khiabani、Peter J. Steel、Khalid A. Alamry、Alan R. Katritzky
DOI:10.1021/jo401234g
日期:2013.9.6
we report the synthesis, X-ray structure determination, and conformationalanalysis of a novel class of heteroatom-modified peptidomimetics, which we shall call “oxyazapeptides”. Substituting the typical native N-Cα bond with an O-Nα bond creates a completely new, previously unknown family of peptidomimetics, which are hydrolytically stable and display very interesting conformational behavior. Force