Efficient continuous kinetic resolution of racemic 2-aminobutanol over immobilized penicillin G acylase
作者:Jianxin Wang、Na Liu、Xiaobo Cheng、Ligong Chen
DOI:10.1080/00397911.2016.1181763
日期:2016.6.2
the presence of immobilized penicillin G acylase with satisfied enantioselectivity. Thus, the reaction parameters were optimized in a fixed-bed reactor. Under the optimized conditions, 39.3% conversion of N-phenylacetyl (±)-2-aminobutanol and 98.2% ee value of S-2-aminobutanol were obtained. This fixed-bed system was operated continuously for 40 h without significant decrease of enzyme activity. It has
摘要 在本文中,通过在固定床反应器中通过固定化青霉素 G 酰化酶 (PGA) 选择性水解 N-苯乙酰 (±)-2-氨基丁醇,建立了一种连续动力学拆分外消旋 2-氨基丁醇的有效方法。通过批量实验筛选了几种2-氨基丁醇的N-酰化衍生物,发现在固定化青霉素G酰化酶存在下,N-苯乙酰(±)-2-氨基丁醇的水解过程顺利进行,对映选择性令人满意。因此,在固定床反应器中优化了反应参数。在优化条件下,N-苯乙酰(±)-2-氨基丁醇的转化率为39.3%,S-2-氨基丁醇的ee值达到98.2%。该固定床系统连续运行 40 小时,酶活性没有明显下降。与批量实验相比,它已被证明更有效。图形概要