An efficient and simple two-step procedure for the formation of hydroxy-Freidinger lactams is presented. The methodology allows assembly of the cyclic threonine motif (cThr) in solution and on solid support during conventional peptide synthesis.
PROCESSES FOR PREPARING AMINO-SUBSTITUTED GAMMA-LACTAMS
申请人:Lubell William
公开号:US20120101257A1
公开(公告)日:2012-04-26
The present application describes general process for the preparation of amino-substituted gamma-lactams involving the reaction of synthons of the general Formulae (I) and (VI): with amines. The processes are amenable to solid phase synthetic techniques and therefore allow the efficient incorporation of amino-substituted gamma-lactams into a wide variety of structural scaffolds, including, in particular peptides.
[EN] PEPTIDOMIMETICS FOR MODULATING INTERLEUKIN-1 RECEPTOR<br/>[FR] PEPTIDOMIMÉTIQUES POUR MODULER LE RÉCEPTEUR D'INTERLEUKINE-1
申请人:CT HOSPITALIER UNIVERSITAIRE S
公开号:WO2010106441A2
公开(公告)日:2010-09-23
The present invention provides, among other things, improved Allosteramers™ for modulating IL-I receptor activity. In particular, the present invention provides peptidomimetics containing lactams and/or Bab residues. Pharmaceutical compositions of the peptidomimetic compounds of the present invention and methods of using these compositions in the treatment of various disorders are also provided.
[EN] PROCESSES FOR PREPARING AMINO-SUBSTITUTED GAMMA-LACTAMS<br/>[FR] PROCÉDÉS DE SYNTHÈSE DE GAMMA-LACTAMES AMINO-SUBSTITUÉS
申请人:VALORISATION RECH SOC EN COMMA
公开号:WO2010105367A1
公开(公告)日:2010-09-23
The present application describes general process for the preparation of amino-substitued gamma-lactams involving the reaction of synthons of the general Formulae (I) and (VI): with amines. The processes are amenable to solid phase synthetic techniques and therefore allow the efficient incorporation of amino-substitued gamma-lactams into a wide variety of structural scaffolds, including, in particular peptides.
Chemical Synthesis of Microtubule-Associated Protein Tau
作者:Wyatt C. Powell、Ruiheng Jing、Maciej A. Walczak
DOI:10.1021/jacs.3c07338
日期:2023.10.4
A systematic examination of these protein alterations can shed light on their roles in both healthy and diseased states. However, the ability to access these modifications in the entire protein chain is limited as Tau can only be produced recombinantly or through semisynthesis. In this article, we describe the first chemicalsynthesis of the longest 2N4R isoform of Tau, consisting of 441 amino acids
微管相关蛋白 Tau (MAPT) 的沉积是称为 tau 病的神经退行性疾病的标志。大量研究表明,在阿尔茨海默病 (AD) 等疾病中,Tau 蛋白会发生广泛的重塑。分布在蛋白质整个序列中的翻译后修饰的附着与临床表现相关。对这些蛋白质变化的系统检查可以揭示它们在健康和疾病状态下的作用。然而,在整个蛋白链中进行这些修饰的能力受到限制,因为 Tau 只能通过重组或半合成产生。在本文中,我们描述了 Tau 最长 2N4R 同工型的首次化学合成,该同工型由 441 个氨基酸组成。2N4R Tau 分为 3 个主要片段,总共 11 个片段,全部通过固相肽合成制备。成功的化学策略依赖于对两个半胱氨酸位点(C291 和 C322)进行天然化学连接 (NCL) 的策略性使用。这与现代制备蛋白质化学相结合,例如巯基苏氨酸连接(T205)、二硒化物-硒酯连接(D358)以及通过均相自由基脱硫将巯基氨基酸突变为天