1
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Bai R, Chen B, Zheng L. Semi-rational engineering an aldo-keto reductase for stereocomplementary reduction of α-keto amide compounds. Microb Cell Fact 2023; 22:213. [PMID: 37840127 PMCID: PMC10577934 DOI: 10.1186/s12934-023-02225-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Accepted: 10/07/2023] [Indexed: 10/17/2023] Open
Abstract
Enantio-pure α-hydroxy amides are valuable intermediates for the synthesis of chiral pharmaceuticals. The asymmetric reduction of α-keto amides to generate chiral α-hydroxy amides is a difficult and challenging task in biocatalysis. In this study, iolS, an aldo-keto reductase from Bacillus subtilis 168 was exhibited as a potential biocatalyst, which could catalyze the reduction of diaryl α-keto amide such as 2-oxo-N, 2-diphenyl-acetamide (ONDPA) with moderate S-selectivity (76.1%, ee) and 60.5% conversion. Through semi-rational engineering, two stereocomplementary variants (I57F/F126L and N21A/F126A) were obtained with ee value of 97.6% (S) and 99.9% (R) toward ONDPA (1a), respectively, delivering chiral α-hydroxy amide with > 98% conversions. Moreover, the excellent S- and R-preference variants displayed improved stereoselectivities toward the other α-keto amide compounds. Molecular dynamic and docking analysis revealed that the two key residues at 21 and 126 were identified as the "switch", which specifically controlled the stereopreference of iolS by regulating the shape of substrate binding pocket as well as the substrate orientation. Our results offer an effective strategy to obtain α-hydroxy amides with high optical purity and provide structural insights into altering the stereoselectivity of AKRs.
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Affiliation(s)
- Ruixuan Bai
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun, 130012, China
| | - Baoling Chen
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun, 130012, China
| | - Liangyu Zheng
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun, 130012, China.
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2
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Yu R, Hao F, Zhang X, Fang Z, Jin Z, Liu G, Dai G, Wu J. Cobalt-Catalyzed Chemoselective Reduction of N-Heteroaryl Ketones with N, N-Dimethylformamide as a Hydride Source. J Org Chem 2023. [PMID: 37257025 DOI: 10.1021/acs.joc.3c00283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A method for chemoselective reduction of 2-pyridyl ketones and related N-heteroaryl compounds catalyzed by cobalt stearate using DMF as a hydride source is developed. The ketone substrate is activated by chelation with cobalt, which makes the present method highly chemoselective. A possible reaction mechanism is proposed on the basis of control experiments.
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Affiliation(s)
- Rurong Yu
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Jiaojiang 318000, China
| | - Feiyue Hao
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Jiaojiang 318000, China
| | - Xinyu Zhang
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Jiaojiang 318000, China
| | - Zhongbing Fang
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Jiaojiang 318000, China
| | - Zhengneng Jin
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Jiaojiang 318000, China
| | - Guyue Liu
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Jiaojiang 318000, China
| | - Guoliang Dai
- School of Chemical Biology and Materials Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Jiashou Wu
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Jiaojiang 318000, China
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3
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Golla S, Kokatla HP. Rongalite-Mediated Transition Metal- and Hydride-Free Chemoselective Reduction of α-Keto Esters and α-Keto Amides. J Org Chem 2022; 87:9915-9925. [PMID: 35839148 DOI: 10.1021/acs.joc.2c00936] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A transition metal- and hydride-free protocol has been developed for the chemoselective reduction of α-keto esters and α-keto amides using rongalite as a reducing agent. Here, rongalite acts as a hydride-free reducing agent via a radical mechanism. This protocol offers the synthesis of a wide range of α-hydroxy esters and α-hydroxy amides with 85-98% yields. This chemoselective method is compatible with other reducible functionalities such as halides, alkenes, amides, and nitriles. The use of inexpensive rongalite (ca. $0.03/1 g), mild reaction conditions, and gram-scale synthesis are some of the key features of this methodology. Also, cyclandelate, a vasodilator drug, has been synthesized in gram scale with 79% yield.
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Affiliation(s)
- Sivaparwathi Golla
- Department of Chemistry, National Institute of Technology Warangal, Warangal, Telangana 506004, India
| | - Hari Prasad Kokatla
- Department of Chemistry, National Institute of Technology Warangal, Warangal, Telangana 506004, India
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4
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Deng LF, Cheng J, Chen JJ, Yang L. Ni‐Catalyzed Cyanation of Allylic Alcohols with Formamide as the Cyano Source. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | | | | | - Luo Yang
- Xiangtan University Chemistry Yuhu 411105 Xiangtan CHINA
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5
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Intramolecular Arylation of 2‐Bromobenzenesulfonamides Using DMSO/HCOONa ⋅ 2H
2
O System: An Access To Dibenzosultams. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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6
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Fang ZB, Yu RR, Hao FY, Jin ZN, Liu GY, Dai GL, Yao WB, Wu JS. “On-water” reduction of α-keto amide by Hantzsch ester: A chemoselective catalyst- and additive-free way to α-hydroxy amide. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153524] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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7
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Muzart J. A Journey from June 2018 to October 2021 with N, N-Dimethylformamide and N, N-Dimethylacetamide as Reactants. Molecules 2021; 26:6374. [PMID: 34770783 PMCID: PMC8587108 DOI: 10.3390/molecules26216374] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 10/14/2021] [Accepted: 10/15/2021] [Indexed: 02/01/2023] Open
Abstract
A rich array of reactions occur using N,N-dimethylformamide (DMF) or N,N-dimethylacetamide (DMAc) as reactants, these two amides being able to deliver their own H, C, N, and O atoms for the synthesis of a variety of compounds. This account highlights the literature published since June 2018, completing previous reviews by the author.
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Affiliation(s)
- Jacques Muzart
- Institut de Chimie Moléculaire de Reims, CNRS-Université de Reims Champagne-Ardenne, B.P. 1039, CEDEX 2, 51687 Reims, France
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8
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Yoon Lee C, Kim S. Highly Efficient DMSO‐Promoted α‐Hydrolysis of α‐Halohydroxamates under Mild Conditions. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Chang Yoon Lee
- Department of Chemistry Kyonggi University 154-42 Gwanggyosan-ro, Yeongtong-gu Suwon 16227 Republic of Korea
| | - Sung‐Gon Kim
- Department of Chemistry Kyonggi University 154-42 Gwanggyosan-ro, Yeongtong-gu Suwon 16227 Republic of Korea
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9
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Zhang J, Luo C, Yang L. Nickel/Cobalt‐Catalyzed Reductive Hydrocyanation of Alkynes with Formamide as the Cyano Source, Dehydrant, Reductant, and Solvent. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202000935] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jin Zhang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province College of Chemistry Xiangtan University Hunan 411105 People's Republic of China
- College of Material and Chemical Engineering Hunan City University Hunan 413000 People's Republic of China
| | - Cui‐Ping Luo
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province College of Chemistry Xiangtan University Hunan 411105 People's Republic of China
| | - Luo Yang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province College of Chemistry Xiangtan University Hunan 411105 People's Republic of China
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10
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Shen G, Liu H, Chen J, He Z, Zhou Y, Wang L, Luo Y, Su Z, Fan B. Zinc salt-catalyzed reduction of α-aryl imino esters, diketones and phenylacetylenes with water as hydrogen source. Org Biomol Chem 2021; 19:3601-3610. [PMID: 33908578 DOI: 10.1039/d1ob00155h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The zinc salt-catalyzed reduction of α-aryl imino esters, diketones and phenylacetylenes with water as hydrogen source and zinc as reductant was successfully conducted. The presented method provides a low-cost, environmentally friendly and practical preparation of α-aryl amino esters, α-hydroxyketones and phenylethylenes. By using D2O as deuterium source, the corresponding products were obtained in high efficiency with excellent deuterium incorporation rate, which gives a cheap and safe tool for access to valuable deuterium-labelled compounds.
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Affiliation(s)
- Guoli Shen
- Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Com-mission & Ministry of Education, Kunming, 650500, China.
| | - Haojie Liu
- Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Com-mission & Ministry of Education, Kunming, 650500, China.
| | - Jingchao Chen
- Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Com-mission & Ministry of Education, Kunming, 650500, China.
| | - Zhenxiu He
- Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Com-mission & Ministry of Education, Kunming, 650500, China.
| | - Yongyun Zhou
- Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Com-mission & Ministry of Education, Kunming, 650500, China.
| | - Lin Wang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Com-mission & Ministry of Education, Kunming, 650500, China.
| | - Yang Luo
- Chongqing Key Laboratory of traditional Chinese medicine health, Chongqing Accademy of Chinese Materia Medica, Chongqing, China
| | - Zhimin Su
- Chongqing Key Laboratory of traditional Chinese medicine health, Chongqing Accademy of Chinese Materia Medica, Chongqing, China
| | - Baomin Fan
- Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Com-mission & Ministry of Education, Kunming, 650500, China. and Chongqing Key Laboratory of traditional Chinese medicine health, Chongqing Accademy of Chinese Materia Medica, Chongqing, China
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11
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Huang J, Liang B, Chen X, Liu Y, Li Y, Liang J, Zhu W, Tang X, Li Y, Zhu Z. Rapid assembly of α-ketoamides through a decarboxylative strategy of isocyanates with α-oxocarboxylic acids under mild conditions. Org Biomol Chem 2021; 19:4783-4787. [PMID: 33982036 DOI: 10.1039/d1ob00562f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and practical method for α-ketoamide synthesis via a decarboxylative strategy of isocyanates with α-oxocarboxylic acids is described. The reaction proceeds at room temperature under mild conditions without an oxidant or an additive, showing good substrate scope and functional compatibility. Moreover, the applicability of this method was further demonstrated by the synthesis of various bioactive molecules and different application examples through a two-step one-pot operation.
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Affiliation(s)
- Junjie Huang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China.
| | - Baihui Liang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China.
| | - Xiuwen Chen
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China.
| | - Yifu Liu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China.
| | - Yawen Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China.
| | - Jingwen Liang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China.
| | - Weidong Zhu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China.
| | - Xiaodong Tang
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China.
| | - Yibiao Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China.
| | - Zhongzhi Zhu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China.
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12
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Chanu IH, Devi LM, Singh TP, Singh SJ, Singh RR, Mukherjee Singh O. β‐Ketodithioesters as Versatile Building Blocks for the Diversity Oriented Synthesis of Thioamides, α‐Allylated‐Thioesters and Ketoamides. ChemistrySelect 2020. [DOI: 10.1002/slct.202001807] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Irom Harimala Chanu
- Department of Chemistry Manipur University Imphal,Canchipur 795003 India E-mail: ok
| | - Laishram Momota Devi
- Department of Chemistry Manipur University Imphal,Canchipur 795003 India E-mail: ok
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13
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Hussein MA, Dinh AH, Huynh VT, Nguyen TV. Synthesis of tertiary amines by direct Brønsted acid catalyzed reductive amination. Chem Commun (Camb) 2020; 56:8691-8694. [PMID: 32613957 DOI: 10.1039/d0cc02955f] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Tertiary amines are ubiquitous and valuable compounds in synthetic chemistry, with a wide range of applications in organocatalysis, organometallic complexes, biological processes and pharmaceutical chemistry. One of the most frequently used pathways to synthesize tertiary amines is the reductive amination reaction of carbonyl compounds. Despite developments of numerous new reductive amination methods in the past few decades, this reaction generally requires non-atom-economic processes with harsh conditions and toxic transition-metal catalysts. Herein, we report simple yet practical protocols using triflic acid as a catalyst to efficiently promote the direct reductive amination reactions of carbonyl compounds on a broad range of substrates. Applications of this new method to generate valuable heterocyclic frameworks and polyamines are also included.
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Affiliation(s)
- Mohanad A Hussein
- School of Chemistry, University of New South Wales, Sydney, Australia.
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14
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Liu G, Hao F, He X, Xu Y, Jin Z, Jiang H, Wu J. Catalyst‐ and Additive‐free Synthesis of α‐Pyrrolyl Amides upon Treatment of α‐Keto Amides with 4‐Hydroxy‐L‐proline. ChemistrySelect 2020. [DOI: 10.1002/slct.202002037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Guyue Liu
- School of Pharmaceutical and Materials EngineeringTaizhou UniversityJiaojiang 318000Zhejiang Province China
| | - Feiyue Hao
- School of Pharmaceutical and Materials EngineeringTaizhou UniversityJiaojiang 318000Zhejiang Province China
| | - Xiaoyu He
- School of Pharmaceutical and Materials EngineeringTaizhou UniversityJiaojiang 318000Zhejiang Province China
| | - Yan Xu
- School of Pharmaceutical and Materials EngineeringTaizhou UniversityJiaojiang 318000Zhejiang Province China
| | - Zhengneng Jin
- School of Pharmaceutical and Materials EngineeringTaizhou UniversityJiaojiang 318000Zhejiang Province China
| | - Huajiang Jiang
- School of Pharmaceutical and Materials EngineeringTaizhou UniversityJiaojiang 318000Zhejiang Province China
| | - Jiashou Wu
- School of Pharmaceutical and Materials EngineeringTaizhou UniversityJiaojiang 318000Zhejiang Province China
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15
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Mishra AA, Chaurasia SR, Bhanage BM. Ru–g-C 3N 4 as a highly active heterogeneous catalyst for transfer hydrogenation of α-keto amide into β-aminol or α-hydroxyl amide. NEW J CHEM 2020. [DOI: 10.1039/d0nj01674h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
This work reports a sustainable route for the catalytic transfer hydrogenation (CTH) of α-keto amide into β-aminol via an efficient heterogeneous catalyst wherein ruthenium is incorporated on an active graphite sheet of a carbon nitride support (Ru–g-C3N4).
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Affiliation(s)
- Ashish A. Mishra
- Department of Chemistry
- Institute of Chemical Technology
- Mumbai 400019
- India
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