High Selectivity Cofactor NADH Regeneration Organic Iridium Complexes Used for High-Efficiency Chem-Enzyme Cascade Catalytic Hydrogen Transfer
作者:Li-Jun Zhao、Caimei Zhang、Shixin Zhang、Xiaoyi Lv、Jiayang Chen、Xun Sun、Huijuan Su、Toru Murayama、Caixia Qi
DOI:10.1021/acs.inorgchem.3c02882
日期:2023.10.30
electrochemical, and kinetic methods, and the formation of iridium hydride species Ir–H was confirmed to be the plausible hydride-transfer intermediate of 7. Moreover, benefiting from its high hydrogen-transfer activity and selectivity for NADH regeneration, 7 was used as an optimal metal catalyst to establish a chem-enzyme cascade catalytic hydrogen-transfer system, which realized the high-efficiency preparation
我们的研究表明,新型五甲基环戊二烯基(Cp*)铱吡啶磺酰胺复合物PySO 2 NPh-Ir ( 7 )可以在含有多种生物分子的细胞生长培养基中高度特异性地催化烟酰胺腺嘌呤二核苷酸(NAD +)生成相应的还原辅因子NADH。通过单晶X射线、核磁共振、电化学和动力学方法研究了7的结构和催化机理,并证实氢化铱物种Ir-H的形成是7的可能的氢化物转移中间体。此外,得益于其较高的氢转移活性和对NADH再生的选择性,7作为最佳金属催化剂,建立了化学-酶级联催化氢转移体系,实现了L-谷氨酸的高效制备。与L-谷氨酸脱氢酶 (GLDH) 结合。