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Schuster F, Grau BW, Xu HG, Mokhir A, Tsogoeva SB. Dipeptide-catalysed Michael reaction under physiological conditions: Examination of potential bioorthogonality. Bioorg Med Chem 2024; 103:117650. [PMID: 38492540 DOI: 10.1016/j.bmc.2024.117650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 02/13/2024] [Accepted: 02/19/2024] [Indexed: 03/18/2024]
Abstract
Reactions for drug synthesis under cell-like conditions or even inside living cells can potentially be used e.g., to minimize toxic side effects, to maximize bioactive compound efficacy and/or to address drug delivery problems. Those reactions should be bioorthogonal to enable the generation of drug-like compounds with sufficiently good yields. In the known bioorthogonal Michael reactions, using thiols and phosphines as nucleophiles (e.g., in CS and CP bond formation reactions) is very common. No bioorthogonal Michael addition with a carbon nucleophile is known yet. Therefore, the development of such a reaction might be interesting for future drug discovery research. In this work, the metal-free Michael addition between cyclohexanone and various trans-β-nitrostyrenes (CC bond formation reaction), catalysed by a dipeptide salt H-Pro-Phe-O-Na+, was investigated for the first time in the presence of glutathione (GSH) and in phosphate-buffered saline (PBS). We demonstrated that with electron-withdrawing substituents on the aromatic ring and in β-position of the trans-β-nitrostyrene yields up to 64% can be obtained under physiological conditions, indicating a potential bioorthogonality of the studied Michael reaction. In addition, the selected Michael products demonstrated activity against human ovarian cancer cells A2780. This study opens up a new vista for forming bioactive compounds via CC bond formation Michael reactions under physiological (cell-like) conditions.
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Affiliation(s)
- Florian Schuster
- Organic Chemistry Chair I, Friedrich-Alexander University of Erlangen-Nürnberg, Nikolaus-Fiebiger-Straße 10, 91058 Erlangen, Germany
| | - Benedikt W Grau
- Organic Chemistry Chair I, Friedrich-Alexander University of Erlangen-Nürnberg, Nikolaus-Fiebiger-Straße 10, 91058 Erlangen, Germany
| | - Hong-Gui Xu
- Organic Chemistry Chair II, Friedrich-Alexander University of Erlangen-Nürnberg, Nikolaus-Fiebiger-Straße 10, 91058 Erlangen, Germany
| | - Andriy Mokhir
- Organic Chemistry Chair II, Friedrich-Alexander University of Erlangen-Nürnberg, Nikolaus-Fiebiger-Straße 10, 91058 Erlangen, Germany
| | - Svetlana B Tsogoeva
- Organic Chemistry Chair I, Friedrich-Alexander University of Erlangen-Nürnberg, Nikolaus-Fiebiger-Straße 10, 91058 Erlangen, Germany.
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Kuang Y, Maeda K, Matsubara R, Hayashi M. One-Pot Synthesis of 3-Substiuted Indoles from 2-(2-Nitro-1-phenylethyl)cyclohexanone Derivatives. J Org Chem 2023; 88:5791-5800. [PMID: 37023265 DOI: 10.1021/acs.joc.3c00233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
Abstract
Herein, a one-pot synthesis of 3-substituted indoles from 2-(2-nitro-1-phenylethyl)cyclohexanone derivatives catalyzed by Pd/C is reported. The starting materials can be easily prepared by the reaction of substituted ketones and nitroalkenes. The facile experimental procedure comprises the treatment of 2-(2-nitro-1-phenylethyl)cyclohexanone derivatives with H2 as a hydrogen donor in the presence of 10 mol % Pd/C. Subsequently, the exchange of H2 with CH2═CH2 as a hydrogen acceptor affords a variety of 3-substituted indoles in high yields. The formation of intermediate nitrones is essential for a smooth reaction.
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Affiliation(s)
- Yangjin Kuang
- Department of Chemistry, Graduate School of Science, Kobe University, Kobe 657-8501, Japan
| | - Katsumi Maeda
- Department of Chemistry, Graduate School of Science, Kobe University, Kobe 657-8501, Japan
| | - Ryosuke Matsubara
- Department of Chemistry, Graduate School of Science, Kobe University, Kobe 657-8501, Japan
| | - Masahiko Hayashi
- Department of Chemistry, Graduate School of Science, Kobe University, Kobe 657-8501, Japan
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3
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Kumar Sharma S. The Importance of Organocatalysis (Asymmetric and Non‐Asymmetric) in Agrochemicals. ChemistrySelect 2023. [DOI: 10.1002/slct.202300204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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4
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Recent Advances in Asymmetric Synthesis of Pyrrolidine-Based Organocatalysts and Their Application: A 15-Year Update. Molecules 2023; 28:molecules28052234. [PMID: 36903480 PMCID: PMC10005811 DOI: 10.3390/molecules28052234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 02/21/2023] [Accepted: 02/24/2023] [Indexed: 03/05/2023] Open
Abstract
In 1971, chemists from Hoffmann-La Roche and Schering AG independently discovered a new asymmetric intramolecular aldol reaction catalyzed by the natural amino acid proline, a transformation now known as the Hajos-Parrish-Eder-Sauer-Wiechert reaction. These remarkable results remained forgotten until List and Barbas reported in 2000 that L-proline was also able to catalyze intermolecular aldol reactions with non-negligible enantioselectivities. In the same year, MacMillan reported on asymmetric Diels-Alder cycloadditions which were efficiently catalyzed by imidazolidinones deriving from natural amino acids. These two seminal reports marked the birth of modern asymmetric organocatalysis. A further important breakthrough in this field happened in 2005, when Jørgensen and Hayashi independently proposed the use of diarylprolinol silyl ethers for the asymmetric functionalization of aldehydes. During the last 20 years, asymmetric organocatalysis has emerged as a very powerful tool for the facile construction of complex molecular architectures. Along the way, a deeper knowledge of organocatalytic reaction mechanisms has been acquired, allowing for the fine-tuning of the structures of privileged catalysts or proposing completely new molecular entities that are able to efficiently catalyze these transformations. This review highlights the most recent advances in the asymmetric synthesis of organocatalysts deriving from or related to proline, starting from 2008.
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DBU-catalyzed Michael addition of bulky glycine imine to α,β-unsaturated isoxazoles and pyrazolamides. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132511] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Das T, Mohapatra S, Mishra NP, Nayak S, Raiguru BP. Recent Advances in Organocatalytic Asymmetric Michael Addition Reactions to α, β‐Unsaturated Nitroolefins. ChemistrySelect 2021. [DOI: 10.1002/slct.202100679] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Tapaswini Das
- Organic Synthesis Laboratory, Department of Chemistry Ravenshaw University Cuttack 753003, Odisha India
| | - Seetaram Mohapatra
- Organic Synthesis Laboratory, Department of Chemistry Ravenshaw University Cuttack 753003, Odisha India
| | - Nilima P. Mishra
- Organic Synthesis Laboratory, Department of Chemistry Ravenshaw University Cuttack 753003, Odisha India
| | - Sabita Nayak
- Organic Synthesis Laboratory, Department of Chemistry Ravenshaw University Cuttack 753003, Odisha India
| | - Bishnu P. Raiguru
- Organic Synthesis Laboratory, Department of Chemistry Ravenshaw University Cuttack 753003, Odisha India
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Mahato CK, Mukherjee S, Kundu M, Vallapure VP, Pramanik A. Asymmetric 1,4-Michael Addition in Aqueous Medium Using Hydrophobic Chiral Organocatalysts. J Org Chem 2021; 86:5213-5226. [PMID: 33764066 DOI: 10.1021/acs.joc.1c00124] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Organic transformations exclusively in water as an environmentally friendly and safe medium have drawn significant interest in the recent years. Moreover, transition metal-free synthesis of enantiopure molecules in water will have a great deal of attention as the system will mimic the natural enzymatic reactions. In this work, a new set of proline-derived hydrophobic organocatalysts have been synthesized and utilized for asymmetric Michael reactions in water as the sole reaction medium. Among the various catalysts screened, the catalyst 1 is indeed efficient for stereoselective 1,4-conjugated Michael additions (dr: >97:3, ee up to >99.9%) resulting in high chemical yields (up to 95%) in a very short reaction time (1 h) at room temperature. This methodology provides a robust, green, and convenient protocol and can thus be an important addition to the arsenal of the asymmetric Michael addition reaction. Upon successful implementation, the present strategy also led to the formation of an optically active octahydroindole, the key component found in many natural products.
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Affiliation(s)
- Chandan K Mahato
- TCG Lifesciences Pvt. Limited, BN-7, Sector V, Salt Lake City, Kolkata 700091, India.,Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata 700009, India
| | - Sayan Mukherjee
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata 700009, India
| | - Mrinalkanti Kundu
- TCG Lifesciences Pvt. Limited, BN-7, Sector V, Salt Lake City, Kolkata 700091, India
| | - Virbhadra P Vallapure
- TCG Lifesciences Pvt. Limited, BN-7, Sector V, Salt Lake City, Kolkata 700091, India
| | - Animesh Pramanik
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata 700009, India
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Lu H, Lv J, Zhou C, Zhou M, Fang Y, Dong J, Kato T, Liu Y, Maruoka K. Remarkable Effect of
tert
‐Amine Additives in the Asymmetric Direct Michael Reaction of Ketones with β‐Arylnitroethenes Catalyzed by an
L
‐Hydroxyproline‐Based Amino Tf‐Amide Organocatalyst. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100090] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Hanbin Lu
- School of Chemical Engineering and Light Industry Guangdong University of Technology 510006 Guangzhou China
| | - Jiamin Lv
- School of Chemical Engineering and Light Industry Guangdong University of Technology 510006 Guangzhou China
| | - Canhua Zhou
- School of Chemical Engineering and Light Industry Guangdong University of Technology 510006 Guangzhou China
| | - Mi Zhou
- School of Chemical Engineering and Light Industry Guangdong University of Technology 510006 Guangzhou China
| | - Yanxiong Fang
- School of Chemical Engineering and Light Industry Guangdong University of Technology 510006 Guangzhou China
| | - Jinxiang Dong
- School of Chemical Engineering and Light Industry Guangdong University of Technology 510006 Guangzhou China
| | - Terumasa Kato
- School of Chemical Engineering and Light Industry Guangdong University of Technology 510006 Guangzhou China
| | - Yan Liu
- School of Chemical Engineering and Light Industry Guangdong University of Technology 510006 Guangzhou China
| | - Keiji Maruoka
- School of Chemical Engineering and Light Industry Guangdong University of Technology 510006 Guangzhou China
- Graduate School of Pharmaceutical Sciences Kyoto University Sakyo 606-8501 Kyoto Japan
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Rani D, Bhargava M, Agarwal J. Asymmetric Michael Addition of Unactivated Ketones with β‐Nitrostyrenes Mediated by Bifunctional L‐Prolinamide Organocatalysts. ChemistrySelect 2020. [DOI: 10.1002/slct.202000136] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Dixita Rani
- Department of Chemistry and Center of Advanced Studies Panjab University Chandigarh 160014 India
| | - Meha Bhargava
- Department of Chemistry and Center of Advanced Studies Panjab University Chandigarh 160014 India
| | - Jyoti Agarwal
- Department of Chemistry and Center of Advanced Studies Panjab University Chandigarh 160014 India
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Mahato CK, Mukherjee S, Kundu M, Pramanik A. Pyrrolidine-Oxadiazolone Conjugates as Organocatalysts in Asymmetric Michael Reaction. J Org Chem 2019; 84:1053-1063. [PMID: 30577689 DOI: 10.1021/acs.joc.8b02393] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Pyrrolidine-oxadiazolone based organocatalysts are envisaged, synthesized, and utilized for asymmetric Michael reactions. Results of the investigations suggest that some of the catalysts are indeed efficient for stereoselective 1,4-conjugated Michael additions (dr: >97:3, ee up to 99%) in high chemical yields (up to 97%) often in short reaction time. As an extension, one enantiopure Michael adduct has been utilized to synthesize optically active octahydroindole.
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Affiliation(s)
- Chandan K Mahato
- TCG Lifesciences Pvt. Ltd. , BN-7 , Salt Lake City, Kolkata 700091 , India.,Department of Chemistry , University of Calcutta , 92, A. P. C. Road , Kolkata 700009 , India
| | - Sayan Mukherjee
- Department of Chemistry , University of Calcutta , 92, A. P. C. Road , Kolkata 700009 , India
| | - Mrinalkanti Kundu
- TCG Lifesciences Pvt. Ltd. , BN-7 , Salt Lake City, Kolkata 700091 , India
| | - Animesh Pramanik
- Department of Chemistry , University of Calcutta , 92, A. P. C. Road , Kolkata 700009 , India
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