Expanding Synthetic Applications of Δ<sup>1</sup>‐Piperidine‐2‐carboxylate/Δ<sup>1</sup>‐pyrroline‐2‐carboxylate Reductase from <i>Pseudomonas syringae</i> (DpkA<sub><i>Psyrin</i></sub>). Biocatalytic Asymmetric Synthesis of (<i>S</i>,<i>E</i>)‐2‐hydroxy‐4‐arylbut‐3‐enoic Acid Derivatives
作者:Carlos J. Moreno、Samantha Gittings、Dieter Schollmeyer、Jesús Joglar、Jordi Bujons、Karel Hernández、Pere Clapés
DOI:10.1002/adsc.202300953
日期:2024.2.20
this side reaction competes with 3 a for the NADPH regeneration lowering the yield. In addition, equilibrium limitations of the aldol condensation reaction can also affect the final yield of 4 a, when both HBPAPputida and DpkAPsyrin, are present in the reaction mixture. Thus, the successful cascade process will depend on both the efficiency of the aldol condensation (i. e., kinetics and reaction equilibrium)
手性2-羟基-4-芳基丁-3-烯酸衍生物是合成血管紧张素转换酶(ACE)抑制剂的重要前体,例如依那普利、赖诺普利、西拉普利或贝那普利。在这项工作中,我们利用来自丁香假单胞菌的 Δ 1 -哌啶-2-羧酸盐/Δ 1 -吡咯啉-2-羧酸盐还原酶的未探索的混杂酮还原酶活性。番茄 DSM 50315 (DpkA Psyrin ) 用于合成 ( S , E )-2-羟基-4-芳基丁-3-烯酸。该策略被设计为酶级联,包括丙酮酸与芳基醛之间的羟醛缩合,由反式催化来自恶臭假单胞菌(HBPA Pputida )的 -o-羟基亚苄基丙酮酸水合酶-醛缩酶,用于构建碳支架,以及随后由 DpkA Psyrin催化的羰基的不对称还原。酶级联提供了定量转化,总体分离产量在 57-85% 之间。总共制备了九种结构不同的 ( S , E )-2-羟基-4-芳基丁-3-烯酸,ee 含量在 87-99% 之间。