The biocatalytic Friedel-Crafts acylation has been identified recently for the acetylation of resorcinol using activated acetic acid esters for the synthesis of acetophenone derivatives catalyzed by an acyltransferase. Because the wild-type enzyme is limited to acetic and propionic derivatives as the substrate, variants were designed to extend the substrate scope of this enzyme. By rational protein
最近已发现
生物催化的Friedel-Crafts酰化反应可用于
间苯二酚的乙酰化反应,该反应使用活化的
乙酸酯进行乙酰基转移酶催化的
苯乙酮衍
生物的合成。因为野生型酶限于以
乙酸和
丙酸衍
生物为底物,所以设计了变体以扩展该酶的底物范围。通过合理的蛋白质工程,鉴定了活性位点中的关键残基,该残基可被替换以结合更大的酰基部分。单点变体F148V能够转化以前无法获得的中等链长烷基和烷氧基烷基
羧酸酯作为供体底物,转化率高达99%,分离产率高达99%。