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Hioki Y, Costantini M, Griffin J, Harper KC, Merini MP, Nissl B, Kawamata Y, Baran PS. Overcoming the limitations of Kolbe coupling with waveform-controlled electrosynthesis. Science 2023; 380:81-87. [PMID: 37023204 DOI: 10.1126/science.adf4762] [Citation(s) in RCA: 33] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
Abstract
The Kolbe reaction forms carbon-carbon bonds through electrochemical decarboxylative coupling. Despite more than a century of study, the reaction has seen limited applications owing to extremely poor chemoselectivity and reliance on precious metal electrodes. In this work, we present a simple solution to this long-standing challenge: Switching the potential waveform from classical direct current to rapid alternating polarity renders various functional groups compatible and enables the reaction on sustainable carbon-based electrodes (amorphous carbon). This breakthrough enabled access to valuable molecules that range from useful unnatural amino acids to promising polymer building blocks from readily available carboxylic acids, including biomass-derived acids. Preliminary mechanistic studies implicate the role of waveform in modulating the local pH around the electrodes and the crucial role of acetone as an unconventional reaction solvent for Kolbe reaction.
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Affiliation(s)
- Yuta Hioki
- Department of Chemistry, Scripps Research, La Jolla, CA 92037, USA
- Science and Innovation Center, Mitsubishi Chemical Corporation, Aoba-ku, Yokohama, Kanagawa, 227-8502, Japan
| | | | - Jeremy Griffin
- Abbvie Process Research and Development, North Chicago, IL 60064, USA
| | - Kaid C Harper
- Abbvie Process Research and Development, North Chicago, IL 60064, USA
| | | | - Benedikt Nissl
- Department of Chemistry, Scripps Research, La Jolla, CA 92037, USA
| | - Yu Kawamata
- Department of Chemistry, Scripps Research, La Jolla, CA 92037, USA
| | - Phil S Baran
- Department of Chemistry, Scripps Research, La Jolla, CA 92037, USA
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Chattopadhyay SK, Ghosh S, Sarkar S, Bhadra K. α,ß-Didehydrosuberoylanilide hydroxamic acid (DDSAHA) as precursor and possible analogue of the anticancer drug SAHA. Beilstein J Org Chem 2019; 15:2524-2533. [PMID: 31728166 PMCID: PMC6839567 DOI: 10.3762/bjoc.15.245] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 10/08/2019] [Indexed: 11/23/2022] Open
Abstract
An alternate synthetic route to the important anticancer drug suberoylanilide hydroxamic acid (SAHA) from its α,ß-didehydro derivative is described. The didehydro derivative is obtained through a cross metathesis reaction between a suitable terminal alkene and N-benzyloxyacrylamide. Some of the didehydro derivatives of SAHA were preliminarily evaluated for anticancer activity towards HeLa cells. The administration of the analogues caused a significant decrease in the proliferation of HeLa cells. Furthermore, one of the analogues showed a maximum cytotoxicity with a minimum GI50 value of 2.5 µg/mL and the generation of reactive oxygen species (ROS) as some apoptotic features.
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Affiliation(s)
| | - Subhankar Ghosh
- Department of Chemistry, University of Kalyani, Kalyani - 741235, West Bengal, India
| | - Sarita Sarkar
- Department of Zoology, University of Kalyani, Kalyani - 741235, West Bengal, India
| | - Kakali Bhadra
- Department of Zoology, University of Kalyani, Kalyani - 741235, West Bengal, India
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Elek GZ, Koppel K, Zubrytski DM, Konrad N, Järving I, Lopp M, Kananovich DG. Divergent Access to Histone Deacetylase Inhibitory Cyclopeptides via a Late-Stage Cyclopropane Ring Cleavage Strategy. Short Synthesis of Chlamydocin. Org Lett 2019; 21:8473-8478. [PMID: 31596600 DOI: 10.1021/acs.orglett.9b03305] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A unified step-economical strategy for accessing histone deacetylase inhibitory peptides is proposed, based on the late-stage installation of multiple zinc-binding functionalities via the cleavage of the strained cyclopropane ring in the common pluripotent cyclopropanol precursor. The efficacy of the proposed diversity-oriented approach has been validated by short stereoselective synthesis of natural product chlamydocin, containing a challenging-to-install fragment of (2S,9S)-2-amino-8-oxo-9,10-epoxydecanoic acid (Aoe) and a range of its analogues, derivatives of 2-amino-8-oxodecanoic and 2-aminosuberic acids.
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Affiliation(s)
- Gábor Zoltán Elek
- Tallinn University of Technology , School of Science, Department of Chemistry and Biotechnology , Akadeemia tee 15 , 12618 Tallinn , Estonia
| | - Kaur Koppel
- Tallinn University of Technology , School of Science, Department of Chemistry and Biotechnology , Akadeemia tee 15 , 12618 Tallinn , Estonia
| | - Dzmitry M Zubrytski
- Belarusian State University , Department of Organic Chemistry , Leningradskaya 14 , 220050 Minsk , Belarus
| | - Nele Konrad
- Tallinn University of Technology , School of Science, Department of Chemistry and Biotechnology , Akadeemia tee 15 , 12618 Tallinn , Estonia
| | - Ivar Järving
- Tallinn University of Technology , School of Science, Department of Chemistry and Biotechnology , Akadeemia tee 15 , 12618 Tallinn , Estonia
| | - Margus Lopp
- Tallinn University of Technology , School of Science, Department of Chemistry and Biotechnology , Akadeemia tee 15 , 12618 Tallinn , Estonia
| | - Dzmitry G Kananovich
- Tallinn University of Technology , School of Science, Department of Chemistry and Biotechnology , Akadeemia tee 15 , 12618 Tallinn , Estonia
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Chattopadhyay SK, Ghosh S, Sil S. Cross metathesis-mediated synthesis of hydroxamic acid derivatives. Beilstein J Org Chem 2019; 14:3070-3075. [PMID: 30643583 PMCID: PMC6317413 DOI: 10.3762/bjoc.14.285] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 11/29/2018] [Indexed: 12/03/2022] Open
Abstract
An alternative synthesis of α,ß-unsaturated hydroxamates via cross metathesis between a class-I olefin and N-benzyloxyacrylamide is reported. The reaction proceeds better in the presence of Grubbs’ second generation catalyst within short time and in good yields (57–85%) with a range of substrates. Subsequent hydrogenation of each of the CM products delivers the title compounds in moderate to very good yield (70–89%). An important demonstration of the protocol is the preparation of the unusual amino acid component of the bioactive cyclic peptide Chap-31.
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Affiliation(s)
| | - Subhankar Ghosh
- Department of Chemistry, University of Kalyani, Kalyani - 741235, West Bengal, India
| | - Suman Sil
- Department of Chemistry, University of Kalyani, Kalyani - 741235, West Bengal, India
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Herndon JW. The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2017. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.08.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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