The superiority of the carbamoylmethyl ester as an acyl donor for the α-chymotrypsin-catalysed kinetically controlled peptide-bond formation is demonstrated in the couplings of an inherently poor amino acid substrate, Ala, with various amino acid residues as amino components and in the couplings of non-protein amino acids such as halogenophenylalanines as carboxylic components. Furthermore, this approach is applied to the amide-bond formation between an amino acid residue and a chiral amine, which is highly diastereoselective.
研究表明,羰
甲基氨基甲酸酯作为酰基供体在α-糜
蛋白酶催化的动力学控制的肽键形成反应中具有优越性,这体现在天然不良
氨基酸底物Ala与各种
氨基酸残基作为
氨基组分的偶联反应中,以及与非蛋白
氨基酸如卤代苯丙
氨酸作为羧基组分的偶联反应中。此外,这种方法还应用于
氨基酸残基与手性胺之间的酰胺键形成反应,具有高度立体选择性。