Efficient Stereoselective Synthesis of Structurally Diverse γ‐ and δ‐Lactones Using an Engineered Carbonyl Reductase
作者:Meng Chen、Xiao‐Yan Zhang、Chen‐Guang Xing、Chao Zhang、Yu‐Cong Zheng、Jiang Pan、Jian‐He Xu、Yun‐Peng Bai
DOI:10.1002/cctc.201900382
日期:2019.6.6
efficiently synthesized stereoselectively using an engineered carbonyl reductase from Serratia marcescens (SmCRV4). SmCRV4 exhibited improved activity (up to 500‐fold) and thermostability toward 14 γ‐/δ‐keto acids and esters, compared with the wild‐type enzyme, with 110‐fold enhancement in catalytic efficiency (kcat/Km) toward methyl 4‐oxodecanoate. The preparative synthesis of alkyl and aromatic γ‐ and δ‐lactones
结构结构多样的γ-和δ-内酯是利用粘质沙雷氏菌(Sm CR V4)中的一种工程化羰基还原酶有效地立体选择性合成的。与野生型酶相比,Sm CR V4表现出更高的活性(最高达500倍)和对14种γ-/δ-酮酸和酯的热稳定性,催化效率提高了110倍(k cat / K m)对4-氧代十二烷甲酸甲酯。证明了烷基和芳香族γ-和δ-内酯的制备合成,其ee率为95%-> 99%,收率为78%-90%。最高时空产量为1175 g L -1 d -1,达到了(R)-γ-癸内酯