Broad Spectrum Enantioselective Amide Bond Synthetase from <i>Streptoalloteichus hindustanus</i>
作者:Qingyun Tang、Mark Petchey、Benjamin Rowlinson、Thomas J. Burden、Ian J. S. Fairlamb、Gideon Grogan
DOI:10.1021/acscatal.3c05656
日期:2024.1.19
The synthesis of amide bonds is one of the most frequently performed reactions in pharmaceutical synthesis, but the requirement for stoichiometric quantities of coupling agents and activated substrates in established methods has prompted interest in biocatalytic alternatives. AmideBond Synthetases (ABSs) actively catalyze both the ATP-dependent adenylation of carboxylic acid substrates and their subsequent
Oxidative activation of dihydropyridine amides to reactive acyl donors
作者:Erik Daa Funder、Julie B. Trads、Kurt V. Gothelf
DOI:10.1039/c4ob01931h
日期:——
4-dihydropyridine (DHP) are activated by oxidation for acyltransfer to amines, alcohols and thiols. In the reduced form the DHP amide is stable towards reaction with amines at room temperature. However, upon oxidation with DDQ the acyl donor is activated via a proposed pyridinium intermediate. The activated intermediate reacts with various nucleophiles to give amides, esters, and thio-esters in moderate