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Guo YY, Tian ZH, Ma C, Han YC, Bai D, Jiang Z. Unlocking mild-condition benzene ring contraction using nonheme diiron N-oxygenase. Chem Sci 2023; 14:11907-11913. [PMID: 37920353 PMCID: PMC10619644 DOI: 10.1039/d3sc04660e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 10/09/2023] [Indexed: 11/04/2023] Open
Abstract
Benzene ring contractions are useful yet rare reactions that offer a convenient synthetic route to various valuable chemicals. However, the traditional methods of benzene contraction rely on noble-metal catalysts under extreme conditions with poor efficiency and uncontrollable selectivity. Mild-condition contractions of the benzene ring are rarely reported. This study presents a one-step, one-pot benzene ring contraction reaction mediated by an engineered nonheme diiron N-oxygenase. Using various aniline substrates as amine sources, the enzyme causes the phloroglucinol-benzene-ring contraction to afford a series of 4-cyclopentene-1,3-dione structures. A reaction detail study reveals that the nonheme diiron N-oxygenase first oxidizes the aromatic amine to a nitroso intermediate, which then attacks the phloroglucinol anion and causes benzene ring contraction. Besides, we have identified two potent antitumor compounds from the ring-contracted products.
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Affiliation(s)
- Yuan-Yang Guo
- State Key Laboratory of Antiviral Drugs, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University Xinxiang Henan 453007 China
| | - Ze-Hua Tian
- State Key Laboratory of Antiviral Drugs, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University Xinxiang Henan 453007 China
| | - ChunHua Ma
- State Key Laboratory of Antiviral Drugs, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University Xinxiang Henan 453007 China
| | - Yu-Chen Han
- State Key Laboratory of Antiviral Drugs, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University Xinxiang Henan 453007 China
| | - DaChang Bai
- State Key Laboratory of Antiviral Drugs, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University Xinxiang Henan 453007 China
| | - ZhiYong Jiang
- State Key Laboratory of Antiviral Drugs, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University Xinxiang Henan 453007 China
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Schulz G, Kirschning A. Metal free decarboxylative aminoxylation of carboxylic acids using a biphasic solvent system. Org Biomol Chem 2021; 19:273-278. [PMID: 33191421 DOI: 10.1039/d0ob01773f] [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 smooth oxidative radical decarboxylation of carboxylic acids with TEMPO and other derivatives as radical scavengers is reported. The key to success was the use of a two-phase solvent system to avoid otherwise predominant side reactions such as the oxidation of TEMPO by persulfate and enabled the selective formation of synthetically useful alkoxyamines. The method does not require transition metals and was successfully used in a new synthetic approach for the antidepressant indatraline.
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Affiliation(s)
- Göran Schulz
- Institute of Organic Chemistry and Center of Biomolecular Drug Research (BMWZ), Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover, Germany.
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Hernández‐Guerra D, Hlavačková A, Pramthaisong C, Vespoli I, Pohl R, Slanina T, Jahn U. Photochemical C−H Amination of Ethers and Geminal Difunctionalization Reactions in One Pot. Angew Chem Int Ed Engl 2019; 58:12440-12445. [DOI: 10.1002/anie.201905209] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 06/18/2019] [Indexed: 01/19/2023]
Affiliation(s)
- Daniel Hernández‐Guerra
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo námĕstí 2 16610 Prague 6 Czech Republic
| | - Anna Hlavačková
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo námĕstí 2 16610 Prague 6 Czech Republic
| | - Chiranan Pramthaisong
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo námĕstí 2 16610 Prague 6 Czech Republic
| | - Ilaria Vespoli
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo námĕstí 2 16610 Prague 6 Czech Republic
| | - Radek Pohl
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo námĕstí 2 16610 Prague 6 Czech Republic
| | - Tomáš Slanina
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo námĕstí 2 16610 Prague 6 Czech Republic
| | - Ullrich Jahn
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo námĕstí 2 16610 Prague 6 Czech Republic
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Hernández‐Guerra D, Hlavačková A, Pramthaisong C, Vespoli I, Pohl R, Slanina T, Jahn U. Photochemical C−H Amination of Ethers and Geminal Difunctionalization Reactions in One Pot. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201905209] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Daniel Hernández‐Guerra
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo námĕstí 2 16610 Prague 6 Czech Republic
| | - Anna Hlavačková
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo námĕstí 2 16610 Prague 6 Czech Republic
| | - Chiranan Pramthaisong
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo námĕstí 2 16610 Prague 6 Czech Republic
| | - Ilaria Vespoli
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo námĕstí 2 16610 Prague 6 Czech Republic
| | - Radek Pohl
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo námĕstí 2 16610 Prague 6 Czech Republic
| | - Tomáš Slanina
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo námĕstí 2 16610 Prague 6 Czech Republic
| | - Ullrich Jahn
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo námĕstí 2 16610 Prague 6 Czech Republic
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Kapras V, Pohl R, Císařová I, Jahn U. Asymmetric Domino Aza-Michael Addition/[3 + 2] Cycloaddition Reactions as a Versatile Approach to α,β,γ-Triamino Acid Derivatives. Org Lett 2014; 16:1088-91. [DOI: 10.1021/ol403660w] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Vojtěch Kapras
- Institute
of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nam. 2, 166 10, Prague 6, Czech Republic
| | - Radek Pohl
- Institute
of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nam. 2, 166 10, Prague 6, Czech Republic
| | - Ivana Císařová
- Department
of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43, Prague 2, Czech Republic
| | - Ullrich Jahn
- Institute
of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nam. 2, 166 10, Prague 6, Czech Republic
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