不对称的合成N-基乙氨基原衍生物由工程化伊胺降解酶催化
Jinyang Li1,2, Zefei Xu2, Jinhui Feng2
1School of Biotechnology, Key Lab of Industrial Fermentation Microbiology of the Ministry of Education, State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China.
Organic letters
|April 7, 2025
概括
一种新型的伊米因还原酶突变体 (IR262-F185E/F229L) 能够实现合性N-基乙基氨基因丹衍生物的高度反选择性合成. 这一突破为高效生产ozanimod中间体提供了一个有前途的途径.
科学领域:
- 生物催化和酶工程 生物催化和酶工程
- 有机合成 有机合成
- 制药化学 制药化学 制药化学
背景情况:
- 在有机化学中,性N-基乙氨基丹衍生物的不对称合成是一个重大挑战.
- 现有的方法往往缺乏工业应用所需的抗选择性和效率.
- 基拉氨基印丹衍生物是各种药物的关键组成部分,包括免疫调节剂.
研究的目的:
- 识别和设计一种能够对N-基乙烯胺具有高度酶选择性降解的酶.
- 开发一种高效且可扩展的工艺,用于合成性N-基乙基氨基丹衍生物.
- 为了证明开发的生物催化方法的实用性,以生产ozanimod的一个关键中间体.
主要方法:
- 定向进化和选胺基还原酶 (IRED) 酶以识别具有增强活性和酶选择性 (IR262-F185E/F229L) 的突变物.
- 制定连续料批量策略,以减轻 imine 水解并最大限度地提高产品产量.
- 优化反应条件,包括基质度和酶负载,用于大规模合成.
主要成果:
- 改造的胺基还原酶突变体 (IR262-F185E/F229L) 对各种N-乙烯胺基衍生物表现出高的反选择性.
- 一个连续的料批处理过程成功地转化了200毫米的1 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- 目标 (S) - 1 - 2 - 2 - 乙烯 - 氨基) - 2 - 3 - 二 - 1H - 丁 - 4 - 碳烯在70%的单独产量和> 99%的反体过量 (ee) 中得到.
结论:
- 工程化伊敏还原酶和优化的食批量策略为合性N-基乙基氨基丹衍生物提供了有效的生物催化途径.
- 这种方法表明,对于工业规模合成ozanimod中间体的巨大潜力.
- 该研究强调了酶工程和过程优化的力量,以应对制药制造中的合成挑战.
相关概念视频
Reduction of Alkenes: Asymmetric Catalytic Hydrogenation
3.2K
Catalytic hydrogenation of alkenes is a transition-metal catalyzed reduction of the double bond using molecular hydrogen to give alkanes. The mode of hydrogen addition follows syn stereochemistry.
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
3.2K
SN2 Reaction: Stereochemistry
9.0K
In an SN2 reaction, the nucleophilic attack on the substrate and departure of the leaving group occurs simultaneously through a transition state. As the nucleophile approaches the substrate from the back-side, the configuration of the substrate carbon changes from tetrahedral to trigonal bipyramidal and then back to tetrahedral, leading to an inversion in the configuration of the product.
If the substrate is an achiral molecule at the α-carbon, the inversion of configuration is not...
If the substrate is an achiral molecule at the α-carbon, the inversion of configuration is not...
9.0K
ATP and Macromolecule Synthesis
5.1K
Biological macromolecules are organic compounds, predominantly composed of carbon atoms. The carbon atoms are covalently bonded with hydrogen, oxygen, nitrogen, and other minor elements. There are four major biological macromolecule classes: carbohydrates, lipids, proteins, and nucleic acids.
Most macromolecules are composed of single subunits, or building blocks, called monomers. The monomers combine with each other using covalent bonds to form larger molecules known as polymers.
Conversion of...
Most macromolecules are composed of single subunits, or building blocks, called monomers. The monomers combine with each other using covalent bonds to form larger molecules known as polymers.
Conversion of...
5.1K
Synthesis of α-Substituted Carbonyl Compounds: The Stork Enamine Reaction
3.3K
α-Substituted ketones or aldehydes can be synthesized from enamines by the Stork enamine reaction, named after its pioneer Gilbert Stork. Enamines are useful synthetic intermediates where the lone pair on nitrogen is in conjugation with the C=C bond. They resemble enolate ions, as the resonance forms of both species have a nucleophilic α carbon.
3.3K
Synthesis and Decomposition Reactions
31.9K
Synthesis and decomposition are two types of redox reactions. Synthesis means to make something, whereas decomposition means to break something. The reactions are accompanied by chemical and energy changes.
31.9K
Preparation of 1° Amines: Gabriel Synthesis
3.4K
Direct alkylation is not a suitable method for synthesizing amines because it produces polyalkylated products. Gabriel synthesis is the most preferred method to exclusively make primary amines. The method uses phthalimide, which contains a protected form of nitrogen that participates in alkylation only once to predominantly give primary amines.
Strong bases like NaOH or KOH deprotonate the phthalimide to form the corresponding anion, which acts as a nucleophile. Further, the anion attacks an...
Strong bases like NaOH or KOH deprotonate the phthalimide to form the corresponding anion, which acts as a nucleophile. Further, the anion attacks an...
3.4K


![Solid-phase Synthesis of [4.4] Spirocyclic Oximes](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F58508.jpg&w=3840&q=50)