1
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Zhang X, Jiang R, Cheng X. Electrochemical Tandem Olefination and Hydrogenation Reaction with Ammonia. J Org Chem 2021; 86:16016-16025. [PMID: 34342230 DOI: 10.1021/acs.joc.1c01024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
An electrochemical Horner-Wadsworth-Emmons/hydrogenation tandem reaction was achieved using ammonia as electron and proton donors. The reaction could give two-carbon-elongated ester and nitrile from aldehyde or ketones directly. This reaction could proceed with a catalytic amount of base or even without a base. The ammonia provides both the electron and proton for this tandem reaction and enables the catalyst-free hydrogenation of an α,β-unsaturated HWE intermediate. More than 40 examples were reported, and functional groups, including heterocycles and hydroxyl, were tolerated.
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Affiliation(s)
- Xiaofeng Zhang
- Institute of Chemistry and Biomedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, National Demonstration Center for Experimental Chemistry Education, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Runze Jiang
- Institute of Chemistry and Biomedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, National Demonstration Center for Experimental Chemistry Education, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Xu Cheng
- Institute of Chemistry and Biomedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, National Demonstration Center for Experimental Chemistry Education, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.,State Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China.,State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310032, China
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2
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Salikhov SM, Faizullina LK, Valeev FA. Synthesis and cytotoxic activity of isocembrol and its hydroxy derivatives. Russ Chem Bull 2020. [DOI: 10.1007/s11172-020-2981-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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3
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Flourat AL, Haudrechy A, Allais F, Renault JH. (S)-γ-Hydroxymethyl-α,β-butenolide, a Valuable Chiral Synthon: Syntheses, Reactivity, and Applications. Org Process Res Dev 2019. [DOI: 10.1021/acs.oprd.9b00468] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Amandine L. Flourat
- URD Agro-Biotechnologies Industrielles (ABI), CEBB, AgroParisTech, 51110 Pomacle, France
- Institut de Chimie Moléculaire de Reims, UMR CNRS 7312, SFR Condorcet FR CNRS 3417, Université de Reims Champagne Ardenne BP 1039, F-51687 Reims Cedex, France
| | - Arnaud Haudrechy
- Institut de Chimie Moléculaire de Reims, UMR CNRS 7312, SFR Condorcet FR CNRS 3417, Université de Reims Champagne Ardenne BP 1039, F-51687 Reims Cedex, France
| | - Florent Allais
- URD Agro-Biotechnologies Industrielles (ABI), CEBB, AgroParisTech, 51110 Pomacle, France
| | - Jean-Hugues Renault
- Institut de Chimie Moléculaire de Reims, UMR CNRS 7312, SFR Condorcet FR CNRS 3417, Université de Reims Champagne Ardenne BP 1039, F-51687 Reims Cedex, France
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4
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Guney T, Wenderski TA, Boudreau MW, Tan DS. Synthesis of Benzannulated Medium-ring Lactams via a Tandem Oxidative Dearomatization-Ring Expansion Reaction. Chemistry 2018; 24:13150-13157. [PMID: 29936701 PMCID: PMC6242278 DOI: 10.1002/chem.201802880] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Indexed: 12/19/2022]
Abstract
Medium-ring natural products exhibit diverse biological activities but such scaffolds are underrepresented in probe and drug discovery efforts due to the limitations of classical macrocyclization reactions. We report herein a tandem oxidative dearomatization-ring-expanding rearomatization (ODRE) reaction that generates benzannulated medium-ring lactams directly from simple bicyclic substrates. The reaction accommodates diverse aryl substrates (haloarenes, aryl ethers, aryl amides, heterocycles) and strategic incorporation of a bridgehead alcohol generates a versatile ketone moiety in the products amenable to downstream modifications. Cheminformatic analysis indicates that these medium rings access regions of chemical space that overlap with related natural products and are distinct from synthetic drugs, setting the stage for their use in discovery screening against novel biological targets.
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Affiliation(s)
- Tezcan Guney
- Dr. T. Guney, Dr. T. A. W enderski, Prof. Dr. D. S. Tan,
Chemical Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer
Center, 1275 York Avenue, Box 422, New York, New York, 10065, USA
| | - Todd A. Wenderski
- Dr. T. Guney, Dr. T. A. W enderski, Prof. Dr. D. S. Tan,
Chemical Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer
Center, 1275 York Avenue, Box 422, New York, New York, 10065, USA
| | - Matthew W. Boudreau
- M. W. Boudreau, Gerstner Sloan Kettering Summer
Undergraduate Research Program, Memorial Sloan Kettering Cancer Center, 1275 York
Avenue, Box 422, New York, New York, 10065, USA
| | - Derek S. Tan
- Dr. T. Guney, Dr. T. A. W enderski, Prof. Dr. D. S. Tan,
Chemical Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer
Center, 1275 York Avenue, Box 422, New York, New York, 10065, USA
- Prof. Dr. D. S. Tan, Tri-Institutional Research Program,
Memorial Sloan Kettering Cancer Center, 1275 York Avenue, Box 422, New York, New
York, 10065, USA
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5
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The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2016. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2017.09.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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6
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Masusai C, Soorukram D, Kuhakarn C, Reutrakul V, Pohmakotr M. Stereoselective Synthesis of gem
-Difluoromethylenated Linear Azatriquinanes. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701415] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Chonticha Masusai
- Faculty of Applied Science and Engineering; Khon Kaen University; Nong Khai Campus 43000 Nong Khai Thailand
| | - Darunee Soorukram
- Center of Excellence for Innovation in Chemistry (PERCH-CIC) and Department of Chemistry; Faculty of Science; Mahidol University; Rama VI Road 10400 Bangkok Thailand
| | - Chutima Kuhakarn
- Center of Excellence for Innovation in Chemistry (PERCH-CIC) and Department of Chemistry; Faculty of Science; Mahidol University; Rama VI Road 10400 Bangkok Thailand
| | - Vichai Reutrakul
- Center of Excellence for Innovation in Chemistry (PERCH-CIC) and Department of Chemistry; Faculty of Science; Mahidol University; Rama VI Road 10400 Bangkok Thailand
| | - Manat Pohmakotr
- Center of Excellence for Innovation in Chemistry (PERCH-CIC) and Department of Chemistry; Faculty of Science; Mahidol University; Rama VI Road 10400 Bangkok Thailand
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7
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Islam MT. Diterpenes and Their Derivatives as Potential Anticancer Agents. Phytother Res 2017; 31:691-712. [PMID: 28370843 DOI: 10.1002/ptr.5800] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 02/23/2017] [Accepted: 02/26/2017] [Indexed: 12/21/2022]
Abstract
As therapeutic tools, diterpenes and their derivatives have gained much attention of the medicinal scientists nowadays. It is due to their pledging and important biological activities. This review congregates the anticancer diterpenes. For this, a search was made with selected keywords in PubMed, Science Direct, Web of Science, Scopus, The American Chemical Society and miscellaneous databases from January 2012 to January 2017 for the published articles. A total 28, 789 published articles were seen. Among them, 240 were included in this study. More than 250 important anticancer diterpenes and their derivatives were seen in the databases, acting in the different pathways. Some of them are already under clinical trials, while others are in the nonclinical and/or pre-clinical trials. In conclusion, diterpenes may be one of the lead molecules in the treatment of cancer. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Muhammad Torequl Islam
- Department of Pharmacy, Southern University Bangladesh, Northeast Biotechnology Network (RENORBIO), Postgraduate Program in Biotechnology, Federal University of Piauí, Teresina, 64.049-550, Brazil
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Rankin SS, Caldwell JJ, Cronin NB, van Montfort RLM, Collins I. Synthesis of a Ribose-Incorporating Medium Ring Scaffold via a Challenging Ring-Closing Metathesis Reaction. European J Org Chem 2017; 2016:4496-4507. [PMID: 28042283 PMCID: PMC5157775 DOI: 10.1002/ejoc.201600756] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Indexed: 11/21/2022]
Abstract
A practical synthesis of a novel oxabicyclo[6.2.1]undecenetriol useful as a medicinal chemistry scaffold has been developed starting from l‐ribose. The sequence involves an oxidation/Grignard addition sequence and a challenging ring‐closing metathesis (RCM) reaction as the ring forming step. Exploration of the RCM substrate protecting groups revealed the key factor for successful nine‐membered medium ring formation to be conformational bias of the reacting alkenes of the RCM substrate by very bulky silyl ether protecting groups. The synthesis also allowed access to an epimeric triol and saturated and unsaturated variants of the nine‐membered ring. The medium ring conformation of the oxabicyclo[6.2.1]undecenetriol was determined by X‐ray crystallography and correlated to the solution state conformation by NMR experiments.
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Affiliation(s)
- Stuart S Rankin
- Cancer Research UK Cancer Therapeutics Unit The Institute of Cancer Research SM2 5NG London United Kingdom
| | - John J Caldwell
- Cancer Research UK Cancer Therapeutics Unit The Institute of Cancer Research SM2 5NG London United Kingdom
| | - Nora B Cronin
- Division of Structural Biology The Institute of Cancer Research SW7 3RP London United Kingdom
| | - Rob L M van Montfort
- Division of Structural Biology The Institute of Cancer Research SW7 3RP London United Kingdom
| | - Ian Collins
- Cancer Research UK Cancer Therapeutics Unit The Institute of Cancer Research SM2 5NG London United Kingdom
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9
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Welford AJ, Caldwell JJ, Liu M, Richards M, Brown N, Lomas C, Tizzard GJ, Pitak MB, Coles SJ, Eccles SA, Raynaud FI, Collins I. Synthesis and Evaluation of a 2,11-Cembranoid-Inspired Library. Chemistry 2016; 22:5657-64. [PMID: 26929153 PMCID: PMC4869678 DOI: 10.1002/chem.201505093] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Indexed: 01/22/2023]
Abstract
The 2,11-cembranoid family of natural products has been used as inspiration for the synthesis of a structurally simplified, functionally diverse library of octahydroisobenzofuran-based compounds designed to augment a typical medicinal chemistry library screen. Ring-closing metathesis, lactonisation and SmI2 -mediated methods were exemplified and applied to the installation of a third ring to mimic the nine-membered ring of the 2,11-cembranoids. The library was assessed for aqueous solubility and permeability, with a chemical-space analysis performed for comparison to the family of cembranoid natural products and a sample set of a screening library. Preliminary investigations in cancer cells showed that the simpler scaffolds could recapitulate the reported anti-migratory activity of the natural products.
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Affiliation(s)
- Amanda J Welford
- Division of Cancer Therapeutics, The Institute of Cancer Research, London, SM2 5NG, UK
| | - John J Caldwell
- Division of Cancer Therapeutics, The Institute of Cancer Research, London, SM2 5NG, UK.
| | - Manjuan Liu
- Division of Cancer Therapeutics, The Institute of Cancer Research, London, SM2 5NG, UK
| | - Meirion Richards
- Division of Cancer Therapeutics, The Institute of Cancer Research, London, SM2 5NG, UK
| | - Nathan Brown
- Division of Cancer Therapeutics, The Institute of Cancer Research, London, SM2 5NG, UK
| | - Cara Lomas
- Division of Cancer Therapeutics, The Institute of Cancer Research, London, SM2 5NG, UK
| | - Graham J Tizzard
- UK National Crystallography Service, University of Southampton, Southampton, SO17 1BJ, UK
| | - Mateusz B Pitak
- UK National Crystallography Service, University of Southampton, Southampton, SO17 1BJ, UK
| | - Simon J Coles
- UK National Crystallography Service, University of Southampton, Southampton, SO17 1BJ, UK
| | - Suzanne A Eccles
- Division of Cancer Therapeutics, The Institute of Cancer Research, London, SM2 5NG, UK
| | - Florence I Raynaud
- Division of Cancer Therapeutics, The Institute of Cancer Research, London, SM2 5NG, UK
| | - Ian Collins
- Division of Cancer Therapeutics, The Institute of Cancer Research, London, SM2 5NG, UK
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