Chemoenzymatic synthesis of (S)-duloxetine using carbonyl reductase from Rhodosporidium toruloides
作者:Xiang Chen、Zhi-Qiang Liu、Chao-Ping Lin、Yu-Guo Zheng
DOI:10.1016/j.bioorg.2016.02.002
日期:2016.4
chemoenzymatic strategy was developed for (S)-duloxetine production employing carbonyl reductases from newly isolated Rhodosporidium toruloides into the enantiodetermining step. Amongst the ten most permissive enzymes identified, cloned, and overexpressed in Escherichia coli, RtSCR9 exhibited excellent activity and enantioselectivity. Using co-expressed E. coli harboring both RtSCR9 and glucose dehydrogenase
开发了一种化学酶促策略,用于从新分离的Rhodosporidium toruloides的羰基还原酶到对映体确定步骤中生产(S)-度洛西汀。在大肠杆菌中鉴定,克隆和过表达的十种最宽松的酶中,Rt SCR9表现出出色的活性和对映选择性。使用共表达的大肠杆菌窝藏既保留时间SCR9和葡糖脱氢酶,(小号)-3-(二甲基氨基)-1-(2-噻吩基)-1-丙醇3A与迄今为止最高衬底装载(1000毫米)制造每克生物质(DCW)的时空产量为22.9 mmol L -1 h -1200克规模的 g DCW -1。进一步进行了由Rt SCR9催化的(S)-3a进行的后续合成步骤,从> 98.5%ee的2-乙酰乙基噻吩中得到(S)-度洛西汀的总产率为60.2%。