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Yuan S, Liao C, Zheng WH. [2.2]Paracyclophane-Based Isothiourea-Catalyzed Highly Enantioselective α-Fluorination of Carboxylic Acids. Org Lett 2021; 23:4142-4146. [PMID: 33988375 DOI: 10.1021/acs.orglett.1c01046] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Planar chiral [2.2]paracyclophane-based isothiourea catalysts have been prepared over a few simple steps in high yields. In the presence of these catalysts, highly efficient catalytic enantioselective fluorination of carboxylic acids has been accomplished, providing a broad range of optically active α-fluoroesters in high yield and excellent enantioselectivity.
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Affiliation(s)
- Shiru Yuan
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Nanjing 210023, Jiangsu, China
| | - Chen Liao
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Nanjing 210023, Jiangsu, China
| | - Wen-Hua Zheng
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Nanjing 210023, Jiangsu, China
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2
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de Souza LG, Salustiano EJ, da Costa KM, Costa AT, Rumjanek VM, Domingos JLO, Rennó MN, Costa PRR. Synthesis of new α-Aryl-α-tetralones and α-Fluoro-α-aryl-α-tetralones, preliminary antiproliferative evaluation on drug resistant cell lines and in silico prediction of ADMETox properties. Bioorg Chem 2021; 110:104790. [PMID: 33743223 DOI: 10.1016/j.bioorg.2021.104790] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 02/05/2021] [Accepted: 02/28/2021] [Indexed: 12/27/2022]
Abstract
α-aryl-α-tetralones and α-fluoro-α-aryl-α-tetralones derivatives were synthesized by palladium catalyzed α-arylation reaction of α-tetralones and α-fluoro-α-tetralones, with bromoarenes in moderate to good yields. These compounds were evaluated for their in vitro anti-proliferative effects against human breast cancer and leukemia cell lines with diverse profiles of drug resistance. The most promising compounds, 3b, 3c, 8a and 8c, were effective on both neoplastic models. 3b and 8a induced higher toxicity on multidrug resistant cells and were able to avoid efflux by ABCB1 and ABCC1 transporters. Theoretical calculations of the physicochemical descriptors to predict ADMETox properties were favorable concerning Lipinski's rule of five, results that reflected on the low effects on non-tumor cells. Therefore, these compounds showed great potential for development of pharmaceutical agents against therapy refractory cancers.
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Affiliation(s)
- Luana G de Souza
- Laboratório de Química Bioorgânica, Instituto de Pesquisa de Produtos Naturais, Universidade Federal do Rio de Janeiro, Ilha do Fundão, CCS, Bloco H - Sala H27, 21941-902 Rio de Janeiro, RJ, Brazil
| | - Eduardo J Salustiano
- Laboratório de Glicobiologia, Instituto de Biofísica Carlos Chagas Filho, Centro de Ciências da Saúde, Bloco C sala C1-042, Universidade Federal do Rio de Janeiro, RJ 21941-590, Brazil.
| | - Kelli M da Costa
- Laboratório de Glicobiologia, Instituto de Biofísica Carlos Chagas Filho, Centro de Ciências da Saúde, Bloco C sala C1-042, Universidade Federal do Rio de Janeiro, RJ 21941-590, Brazil
| | - Angela T Costa
- Laboratório de Imunologia Tumoral, Instituto de Bioquímica Médica Leopoldo de Meis, Centro de Ciências da Saúde, Bloco H sala 003, Universidade Federal do Rio de Janeiro, RJ 21941-590, Brazil
| | - Vivian M Rumjanek
- Laboratório de Imunologia Tumoral, Instituto de Bioquímica Médica Leopoldo de Meis, Centro de Ciências da Saúde, Bloco H sala 003, Universidade Federal do Rio de Janeiro, RJ 21941-590, Brazil
| | - Jorge L O Domingos
- Departamento de Química Orgânica, Centro de Tecnologia e Ciências, Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier 524, Pav. Haroldo Lisboa da Cunha - s 406 - Maracanã, 20550-900 Rio de Janeiro, RJ, Brazil
| | - Magdalena N Rennó
- Laboratório Integrado de Biologia Computacional e Pesquisa em Ciências Farmacêuticas, Instituto de Biodiversidade e Sustentabilidade (NUPEM), Universidade Federal do Rio de Janeiro, Rua São José do Barreto 764, 27965-045 Macaé, RJ, Brazil
| | - Paulo R R Costa
- Laboratório de Química Bioorgânica, Instituto de Pesquisa de Produtos Naturais, Universidade Federal do Rio de Janeiro, Ilha do Fundão, CCS, Bloco H - Sala H27, 21941-902 Rio de Janeiro, RJ, Brazil.
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3
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Zhang H, Tian S, Yue Y, Li M, Tong W, Xu G, Chen B, Ma M, Li Y, Wang JB. Semirational Design of Fluoroacetate Dehalogenase RPA1163 for Kinetic Resolution of α-Fluorocarboxylic Acids on a Gram Scale. ACS Catal 2020. [DOI: 10.1021/acscatal.9b04804] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Hongxia Zhang
- Key Laboratory of Phytochemistry R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, People’s Republic of China
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University Changsha 410081, People’s Republic of China
| | - Shaixiao Tian
- Key Laboratory of Phytochemistry R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, People’s Republic of China
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University Changsha 410081, People’s Republic of China
| | - Yue Yue
- Environment Research Institute, Shandong University, Qingdao 266237, People’s Republic of China
| | - Min Li
- Key Laboratory of Phytochemistry R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, People’s Republic of China
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University Changsha 410081, People’s Republic of China
| | - Wei Tong
- Key Laboratory of Phytochemistry R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, People’s Republic of China
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University Changsha 410081, People’s Republic of China
| | - Guangyu Xu
- Key Laboratory of Phytochemistry R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, People’s Republic of China
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University Changsha 410081, People’s Republic of China
| | - Bo Chen
- Key Laboratory of Phytochemistry R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, People’s Republic of China
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University Changsha 410081, People’s Republic of China
| | - Ming Ma
- Key Laboratory of Phytochemistry R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, People’s Republic of China
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University Changsha 410081, People’s Republic of China
| | - Yanwei Li
- Environment Research Institute, Shandong University, Qingdao 266237, People’s Republic of China
| | - Jian-bo Wang
- Key Laboratory of Phytochemistry R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, People’s Republic of China
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University Changsha 410081, People’s Republic of China
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-resources, Hubei Key Laboratory of Industrial Biotechnology, School of Life Sciences, Hubei University, 368 Youyi Road, Wuchang Wuhan 430062, People’s Republic of China
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4
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Knox GJ, Hutchings-Goetz LS, Pearson CM, Snaddon TN. Tertiary Amine Lewis Base Catalysis in Combination with Transition Metal Catalysis. Top Curr Chem (Cham) 2020; 378:16. [PMID: 31942682 DOI: 10.1007/s41061-020-0279-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 01/02/2020] [Indexed: 01/03/2023]
Abstract
The cooperation between two orthogonal catalytic events during the formation of carbon-carbon and carbon-heteroatom bonds has emerged as an effective strategy for enantioselective chemical synthesis. In recent years, a number of pioneering investigations have described useful chemical synthesis methods whereby the reactivity or nucleophile-electrophile combinations can be fine-tuned or extended far beyond the effect and influence of a single catalyst. The recognition of this has had profound implications for the development cooperative catalysis as a field and has provided a foundation for the development of broadly useful chemical synthesis methods. This chapter focuses on the combination of tertiary amine Lewis base and transition metal catalysts, which the authors hope will simulate further developments and advances.
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Affiliation(s)
- Gary J Knox
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, IN, 47405, USA
| | - Luke S Hutchings-Goetz
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, IN, 47405, USA
| | - Colin M Pearson
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, IN, 47405, USA
| | - Thomas N Snaddon
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, IN, 47405, USA.
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5
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Ghosh A, Hegde R, Makane VB, Sridhar B, Rode HB, Patil SA, Dateer RB. Transition metal-free functionalized hydration of alkynes: one-pot synthesis of fluorinated β-keto-imidates using Selectfluor. Org Biomol Chem 2019; 17:4440-4445. [PMID: 30984956 DOI: 10.1039/c9ob00527g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A transition metal-free, four-component one-pot synthesis of polyfunctionalized fluorinated β-keto-imidates via the functionalized hydration of alkynes has been described. The intermediate 1,3-ketoamino moiety was obtained from easily accessible arylpropioladehyde and arlyhydroxylamine and was treated with Selectfluor delivering fluorinated β-keto-imidates. A wide variety of functional groups are tolerated under mild reaction conditions and the product applicability is highlighted.
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Affiliation(s)
- Arnab Ghosh
- Centre for Nano and Material Sciences, Jain Global Campus, JAIN (Deemed-to-be-University), Bangalore, Karnataka 562112, India.
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6
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Bume DD, Harry SA, Lectka T, Pitts CR. Catalyzed and Promoted Aliphatic Fluorination. J Org Chem 2018; 83:8803-8814. [PMID: 29894188 DOI: 10.1021/acs.joc.8b00982] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In the last six years, the direct functionalization of aliphatic C-H (and C-C) bonds through user-friendly, radical-based fluorination reactions has emerged as an exciting research area in fluorine chemistry. Considering the historical narratives about the challenges of developing practical radical fluorination in organic frameworks, notable advancements in controlling both reactivity and selectivity have been achieved during this time. As one of the participants in the field, herein, we a provide brief account of research efforts in our laboratory from the initial discovery of radical monofluorination on unactivated C-H bonds in 2012 to more useful strategies to install fluorine on biologically relevant molecules through directed fluorination methods. In addition, accompanying mechanistic studies that have helped guide reaction design are highlighted in context.
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Affiliation(s)
| | | | | | - Cody Ross Pitts
- Department of Chemistry and Applied Biosciences , ETH Zürich , Vladimir-Prelog-Weg 2 , 8093 Zürich , Switzerland
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7
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Champagne PA, Desroches J, Hamel JD, Vandamme M, Paquin JF. Monofluorination of Organic Compounds: 10 Years of Innovation. Chem Rev 2015; 115:9073-174. [PMID: 25854146 DOI: 10.1021/cr500706a] [Citation(s) in RCA: 647] [Impact Index Per Article: 71.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Pier Alexandre Champagne
- Canada Research Chair in Organic and Medicinal Chemistry, CGCC, PROTEO, Département de Chimie, Université Laval , 1045 Avenue de la Médecine, Québec (QC), Canada G1V 0A6
| | - Justine Desroches
- Canada Research Chair in Organic and Medicinal Chemistry, CGCC, PROTEO, Département de Chimie, Université Laval , 1045 Avenue de la Médecine, Québec (QC), Canada G1V 0A6
| | - Jean-Denys Hamel
- Canada Research Chair in Organic and Medicinal Chemistry, CGCC, PROTEO, Département de Chimie, Université Laval , 1045 Avenue de la Médecine, Québec (QC), Canada G1V 0A6
| | - Mathilde Vandamme
- Canada Research Chair in Organic and Medicinal Chemistry, CGCC, PROTEO, Département de Chimie, Université Laval , 1045 Avenue de la Médecine, Québec (QC), Canada G1V 0A6
| | - Jean-François Paquin
- Canada Research Chair in Organic and Medicinal Chemistry, CGCC, PROTEO, Département de Chimie, Université Laval , 1045 Avenue de la Médecine, Québec (QC), Canada G1V 0A6
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8
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Yang X, Wu T, Phipps R, Toste FD. Advances in catalytic enantioselective fluorination, mono-, di-, and trifluoromethylation, and trifluoromethylthiolation reactions. Chem Rev 2015; 115:826-70. [PMID: 25337896 PMCID: PMC4311656 DOI: 10.1021/cr500277b] [Citation(s) in RCA: 1054] [Impact Index Per Article: 117.1] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Indexed: 12/18/2022]
Affiliation(s)
| | | | | | - F. Dean Toste
- Department of Chemistry, University
of California, Berkeley, California 94720, United States
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9
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Abstract
This review focuses on enantioselective cooperative catalytic reactions, wherein two catalysts work simultaneously to form products which cannot be obtained by the use of a single catalyst alone, which have attracted considerable attention in recent years.
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Affiliation(s)
- Suleman M. Inamdar
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Pune 411 008
- India
| | - Valmik S. Shinde
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Pune 411 008
- India
| | - Nitin T. Patil
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Pune 411 008
- India
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10
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Griswold A, Bloom S, Lectka T. A chelating nucleophile plays a starring role: 1,8-naphthyridine-catalyzed polycomponent α,α-difluorination of acid chlorides. J Org Chem 2014; 79:9830-4. [PMID: 25222052 DOI: 10.1021/jo501534k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A dually activated ketene enolate, generated from an acid chloride, the unusual chelating nucleophile (1,8-naphthyridine), and a Lewis acid, reacts to afford a host of α,α-difluorinated products in the presence of a benchtop-stable fluorinating agent (Selectfluor). The use of this method to synthesize otherwise difficult to make products is highlighted along with computational and spectroscopic support for the proposed chelate.
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Affiliation(s)
- Andrew Griswold
- Department of Chemistry, Johns Hopkins University , 3400 North Charles Street, Baltimore, Maryland 21218, United States
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11
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Palladium and organocatalysis: an excellent recipe for asymmetric synthesis. Molecules 2013; 18:10108-21. [PMID: 23973988 PMCID: PMC6270479 DOI: 10.3390/molecules180910108] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Revised: 08/09/2013] [Accepted: 08/15/2013] [Indexed: 11/20/2022] Open
Abstract
The dual activation of simple substrates by the combination of organocatalysis and palladium catalysis has been successfully applied in a variety of different asymmetric transformations. Thus, the asymmetric α-allylation of carbonyl compounds, α-fluorination of acyl derivatives, decarboxylative protonation of β-dicarbonyl compounds, cyclization reactions of alkynyl carbonyl compounds and β-functionalization of aldehydes have been efficiently achieved employing this double-catalytic methodology.
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12
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Zhang Y, Yang XJ, Xie T, Chen GL, Zhu WH, Zhang XQ, Yang XY, Wu XY, He XP, He HM. Comparative studies on the enantioselective fluorination of oxindoles with structurally modified N-fluorobenzenesulfonimides. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.04.037] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Du Z, Shao Z. Combining transition metal catalysis and organocatalysis – an update. Chem Soc Rev 2013; 42:1337-78. [DOI: 10.1039/c2cs35258c] [Citation(s) in RCA: 542] [Impact Index Per Article: 49.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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14
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Chen ZM, Yang BM, Chen ZH, Zhang QW, Wang M, Tu YQ. Organocatalytic Asymmetric Fluorination/Semipinacol Rearrangement: An Efficient Approach to Chiral β-Fluoroketones. Chemistry 2012; 18:12950-4. [DOI: 10.1002/chem.201202444] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Indexed: 11/09/2022]
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15
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Suzuki S, Kitamura Y, Lectard S, Hamashima Y, Sodeoka M. Catalytic asymmetric mono-fluorination of α-keto esters: synthesis of optically active β-fluoro-α-hydroxy and β-fluoro-α-amino acid derivatives. Angew Chem Int Ed Engl 2012; 51:4581-5. [PMID: 22473801 DOI: 10.1002/anie.201201303] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2012] [Indexed: 01/20/2023]
Affiliation(s)
- Shoko Suzuki
- RIKEN, Advanced Science Institute, 2-1, Hirosawa, Wako-shi, Saitama 351-0198, Japan
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16
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Suzuki S, Kitamura Y, Lectard S, Hamashima Y, Sodeoka M. Catalytic Asymmetric Mono-Fluorination of α-Keto Esters: Synthesis of Optically Active β-Fluoro-α-Hydroxy and β-Fluoro-α-Amino Acid Derivatives. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201201303] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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17
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Stegbauer L, Sladojevich F, Dixon DJ. Bifunctional organo/metal cooperative catalysis with cinchona alkaloid scaffolds. Chem Sci 2012. [DOI: 10.1039/c1sc00416f] [Citation(s) in RCA: 104] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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Woods JR, Mo H, Bieberich AA, Alavanja T, Colby DA. Fluorinated amino-derivatives of the sesquiterpene lactone, parthenolide, as (19)f NMR probes in deuterium-free environments. MEDCHEMCOMM 2011. [PMID: 22029741 DOI: 10.1039/c2md20172k] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The design, synthesis, and biological activity of fluorinated amino-derivatives of the sesquiterpene lactone, parthenolide, are described. A fluorinated aminoparthenolide analogue with biological activity similar to the parent natural product was discovered, and its X-ray structure was obtained. This lead compound was then studied using (19)F NMR in the presence and absence of glutathione to obtain additional mechanism of action data, and it was found that the aminoparthenolide eliminates amine faster in the presence of glutathione than in the absence of glutathione. The exact changes in concentrations of fluorinated compound and amine were quantified by a concentration-reference method using (19)F NMR; a major benefit of applying this strategy is that no deuterated solvents or internal standards are required to obtain accurate concentrations. These mechanistic data with glutathione may contribute to the conversion of the amino-derivative to parthenolide, the active pharmacological agent, in glutathione-rich cancer cells.
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Affiliation(s)
- James R Woods
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, Indiana 47907, United States
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19
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Woods JR, Mo H, Bieberich AA, Alavanja T, Colby DA. Fluorinated amino-derivatives of the sesquiterpene lactone, parthenolide, as (19)f NMR probes in deuterium-free environments. J Med Chem 2011; 54:7934-41. [PMID: 22029741 DOI: 10.1021/jm201114t] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The design, synthesis, and biological activity of fluorinated amino-derivatives of the sesquiterpene lactone, parthenolide, are described. A fluorinated aminoparthenolide analogue with biological activity similar to the parent natural product was discovered, and its X-ray structure was obtained. This lead compound was then studied using (19)F NMR in the presence and absence of glutathione to obtain additional mechanism of action data, and it was found that the aminoparthenolide eliminates amine faster in the presence of glutathione than in the absence of glutathione. The exact changes in concentrations of fluorinated compound and amine were quantified by a concentration-reference method using (19)F NMR; a major benefit of applying this strategy is that no deuterated solvents or internal standards are required to obtain accurate concentrations. These mechanistic data with glutathione may contribute to the conversion of the amino-derivative to parthenolide, the active pharmacological agent, in glutathione-rich cancer cells.
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Affiliation(s)
- James R Woods
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, Indiana 47907, United States
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20
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Bloom S, Scerba MT, Erb J, Lectka T. Tricomponent Catalytic α,α-Difluorination of Acid Chlorides. Org Lett 2011; 13:5068-71. [DOI: 10.1021/ol2019295] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Steven Bloom
- Department of Chemistry, New Chemistry Building, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - Michael T. Scerba
- Department of Chemistry, New Chemistry Building, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - Jeremy Erb
- Department of Chemistry, New Chemistry Building, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - Thomas Lectka
- Department of Chemistry, New Chemistry Building, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
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21
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Barrios FJ, Zhang X, Colby DA. Dialkylaluminum N,O-Dimethylhydroxylamine Complex as a Reagent to Mask Reactive Carbonyl Groups in Situ from Nucleophiles. Org Lett 2010; 12:5588-91. [PMID: 21038923 DOI: 10.1021/ol102495v] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Francis J. Barrios
- Department of Chemistry and Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, Indiana 47907, United States
| | - Xuechao Zhang
- Department of Chemistry and Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, Indiana 47907, United States
| | - David A. Colby
- Department of Chemistry and Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, Indiana 47907, United States
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22
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Lectard S, Hamashima Y, Sodeoka M. Recent Advances in Catalytic Enantioselective Fluorination Reactions. Adv Synth Catal 2010. [DOI: 10.1002/adsc.201000624] [Citation(s) in RCA: 242] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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23
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Yamakoshi H. Construction of Fluorinated Chiral Center. J SYN ORG CHEM JPN 2010. [DOI: 10.5059/yukigoseikyokaishi.68.962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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