Superiority of the carbamoylmethyl ester as an acyl donor for the kinetically controlled amide-bond formation mediated by α-chymotrypsinElectronic supplementary information (ESI) available: elemental analyses and HPLC separation data. See http://www.rsc.org/suppdata/p1/b1/b108735p/
作者:Toshifumi Miyazawa、Eiichi Ensatsu、Nobuhiro Yabuuchi、Ryoji Yanagihara、Takashi Yamada
DOI:10.1039/b108735p
日期:2002.1.23
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。