Total Synthesis of Microcin B17 via a Fragment Condensation Approach
摘要:
The total synthesis of the 43 amino acid antibacterial peptide Microcin B17 (MccB17) is described. The natural product was synthesized via a convergent approach from a heterocycle-derived peptide and peptide thioester fragments prepared via Fmoc-strategy solid phase peptide synthesis (SPPS). Final assembly was achieved in an efficient manner using two Ag(I)-assisted peptide ligation reactions to afford MccB17 in excellent overall yield.
[EN] PHARMACEUTICAL COMPOUNDS FOR THE TREATMENT OF COMPLEMENT MEDIATED DISORDERS [FR] COMPOSÉS PHARMACEUTIQUES POUR LE TRAITEMENT DE TROUBLES MÉDIÉS PAR LE COMPLÉMENT
Method for preparing largazole analogs and uses thereof
申请人:Williams Robert M.
公开号:US20100029731A1
公开(公告)日:2010-02-04
Analogs of largazole are described herein. Methods of treating cancer and blood disorders using largazole and largazole analogs and pharmaceutical compositions comprising the same are additionally described herein. Methods for preparing largazole analogs are likewise described.
present in the environment and in natural waters. From previous studies, they seem susceptible to oxidation by singletoxygen (1O2); therefore, we designed and synthesized model oxazole- and thiazole-peptides and measured their 1O2 bimolecular reaction rate constants, showing slow photooxidation under environmental conditions. We reasoned their stability through the electron-withdrawing effect of the carboxamide
Radical‐Mediated Acyl Thiol‐Ene Reaction for Rapid Synthesis of Biomolecular Thioester Derivatives
作者:Joshua T. McLean、Pierre Milbeo、Dylan M. Lynch、Lauren McSweeney、Eoin M. Scanlan
DOI:10.1002/ejoc.202100615
日期:2021.8.6
Radical-mediated acyl thiol-ene reactions between biologically relevant alkene and thioacid components enables rapid, chemoselective and high yielding thioester formation. This reaction in combination with substrates that enable intramolecular acyl transfer permits access to native and modified products beyond the thioether linkage.
[EN] METHOD FOR PREPARING LARGAZOLE ANALOGS AND USES THEREOF<br/>[FR] PROCÉDÉ DE PRÉPARATION DE PARTICULES CREUSES ET LEURS UTILISATIONS
申请人:UNIV COLORADO STATE RES FOUND
公开号:WO2016144665A1
公开(公告)日:2016-09-15
Analogs of largazole are described herein. Methods of treating cancer and blood disorders using largazole and largazole analogs and pharmaceutical compositions comprising the same are additionally described herein. Methods for preparing largazole analogs are likewise described.
the ′Se′ in Selective: CF3Se-containing α-aminoacidderivatives were readily synthesized from natural amino acids and [Me4N][SeCF3]. Some of the derivatives were found to be effective inhibitors towards MCF-7, HCT116, and SK-OV-3 cells. These results implicated that the CF3Se moiety can be used as a potential pharmaceutically relevant group in the synthesis and modification of biologically active
将'Se'置于选择性: CF 3 Se 含α-氨基酸衍生物很容易由天然氨基酸和[Me 4 N][SeCF 3 ]合成。一些衍生物被发现是 MCF-7、HCT116 和 SK-OV-3 细胞的有效抑制剂。这些结果暗示CF 3 Se 部分可用作生物活性分子的合成和修饰中的潜在药学相关基团。