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Qu S, Kim G, Yu J, Sahu PK, Choi Y, Naik SD, Jeong LS. Synthesis and Anti-HIV Activity of 5′-Homo-2′,3′-dideoxy-2′,3′-didehydro-4′-selenonucleosides (5′-Homo-4′-Se-d4 Ns). ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600154] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Shuhao Qu
- College of Pharmacy; Ewha Womans University; Seoul 120-750 Korea
| | - Gyudong Kim
- Research Institute of Pharmaceutical Sciences; College of Pharmacy; Seoul National University; Seoul 151-742 Korea
| | - Jinha Yu
- Research Institute of Pharmaceutical Sciences; College of Pharmacy; Seoul National University; Seoul 151-742 Korea
| | - Pramod K. Sahu
- Research Institute of Pharmaceutical Sciences; College of Pharmacy; Seoul National University; Seoul 151-742 Korea
| | - Yoojin Choi
- Research Institute of Pharmaceutical Sciences; College of Pharmacy; Seoul National University; Seoul 151-742 Korea
| | - Siddhi D. Naik
- College of Pharmacy; Ewha Womans University; Seoul 120-750 Korea
| | - Lak Shin Jeong
- Research Institute of Pharmaceutical Sciences; College of Pharmacy; Seoul National University; Seoul 151-742 Korea
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2
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Skiba J, Karpowicz R, Szabó I, Therrien B, Kowalski K. Synthesis and anticancer activity studies of ferrocenyl-thymine-3,6-dihydro-2H-thiopyranes – A new class of metallocene-nucleobase derivatives. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.07.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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3
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Yan XW, Zhang Q, Wei W, Ji JX. Simple and convenient synthesis of fluoroalkenes via direct coupling of alcohols, alkynes and fluoroboric acid under metal-free conditions. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.05.069] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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4
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Barandun LJ, Immekus F, Kohler PC, Tonazzi S, Wagner B, Wendelspiess S, Ritschel T, Heine A, Kansy M, Klebe G, Diederich F. From lin-benzoguanines to lin-benzohypoxanthines as ligands for Zymomonas mobilis tRNA-guanine transglycosylase: replacement of protein-ligand hydrogen bonding by importing water clusters. Chemistry 2012; 18:9246-57. [PMID: 22736391 DOI: 10.1002/chem.201200809] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2012] [Indexed: 11/12/2022]
Abstract
The foodborne illness shigellosis is caused by Shigella bacteria that secrete the highly cytotoxic Shiga toxin, which is also formed by the closely related enterohemorrhagic Escherichia coli (EHEC). It has been shown that tRNA-guanine transglycosylase (TGT) is essential for the pathogenicity of Shigella flexneri. Herein, the molecular recognition properties of a guanine binding pocket in Zymomonas mobilis TGT are investigated with a series of lin-benzohypoxanthine- and lin-benzoguanine-based inhibitors that bear substituents to occupy either the ribose-33 or the ribose-34 pocket. The three inhibitor scaffolds differ by the substituent at C(6) being H, NH(2), or NH-alkyl. These differences lead to major changes in the inhibition constants, pK(a) values, and binding modes. Compared to the lin-benzoguanines, with an exocyclic NH(2) at C(6), the lin-benzohypoxanthines without an exocyclic NH(2) group have a weaker affinity as several ionic protein-ligand hydrogen bonds are lost. X-ray cocrystal structure analysis reveals that a new water cluster is imported into the space vacated by the lacking NH(2) group and by a conformational shift of the side chain of catalytic Asp102. In the presence of an N-alkyl group at C(6) in lin-benzoguanine ligands, this water cluster is largely maintained but replacement of one of the water molecules in the cluster leads to a substantial loss in binding affinity. This study provides new insight into the role of water clusters at enzyme active sites and their challenging substitution by ligand parts, a topic of general interest in contemporary structure-based drug design.
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Affiliation(s)
- Luzi Jakob Barandun
- Laboratorium für Organische Chemie, ETH Zürich, Hönggerberg, HCI, 8093 Zurich, Switzerland
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5
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Figueras A, Miralles-Llumà R, Flores R, Rustullet A, Busqué F, Figueredo M, Font J, Alibés R, Maréchal JD. Synthesis, Anti-HIV Activity Studies, and in silico Rationalization of Cyclobutane-Fused Nucleosides. ChemMedChem 2012; 7:1044-56. [DOI: 10.1002/cmdc.201200059] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2012] [Indexed: 12/22/2022]
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6
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Flores R, Rustullet A, Alibés R, Álvarez-Larena A, de March P, Figueredo M, Font J. Synthesis of Purine Nucleosides Built on a 3-Oxabicyclo[3.2.0]heptane Scaffold. J Org Chem 2011; 76:5369-83. [DOI: 10.1021/jo200775x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Ramon Flores
- Departament de Quı́mica and ‡Unitat de Crystal·lografia, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Albert Rustullet
- Departament de Quı́mica and ‡Unitat de Crystal·lografia, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Ramon Alibés
- Departament de Quı́mica and ‡Unitat de Crystal·lografia, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Angel Álvarez-Larena
- Departament de Quı́mica and ‡Unitat de Crystal·lografia, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Pedro de March
- Departament de Quı́mica and ‡Unitat de Crystal·lografia, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Marta Figueredo
- Departament de Quı́mica and ‡Unitat de Crystal·lografia, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Josep Font
- Departament de Quı́mica and ‡Unitat de Crystal·lografia, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
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7
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Motto JM, Castillo A, Greer A, Montemayer LK, Sheepwash EE, Schwan AL. Synthetic scope, computational chemistry and mechanism of a base induced 5-endo cyclization of benzyl alkynyl sulfides. Tetrahedron 2011; 67:1002-1010. [PMID: 21442022 PMCID: PMC3063364 DOI: 10.1016/j.tet.2010.11.104] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
We present an experimental and computational study of the reaction of aryl substituted benzyl 1-alkynyl sulfides with potassium alkoxide in acetonitrile, which produces 2-aryl 2,3-dihydrothiophenes in poor to good yields. The cyclization is most efficient with electron withdrawing groups on the aromatic ring. Evidence indicates there is rapid exchange of protons and tautomerism of the alkynyl unit prior to cyclization. Theoretical calculations were also conducted to help rationalize the base induced 5-endo cyclization of benzyl 1-propynyl sulfide (1a). The potential energy surface was calculated for the formation of 2,3-dihydrothiophene in a reaction of benzyl 1-propynyl sulfide (1a) with potassium methoxide. Geometries were optimized with CAM-B3LYP/6-311+G(d,p) in acetonitrile with the CPCM solvent model. It is significant that the benzyl propa-1,2-dien-1-yl sulfane (6) possessed a lower benzylic proton affinity than the benzyl prop-2-yn-1-yl sulfane (8) thus favoring the base induced reaction of the former. From benzyl(propa-1,2-dien-1-yl sulfane (6), 2,3-dihydrothiophene can be formed via a conjugate base that undergoes 5-endo-trig cyclization followed by a protonation step.
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Affiliation(s)
- John M Motto
- Department of Chemistry, University of Guelph, Guelph, ON Canada, N1G 2W1
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8
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Synthesis of 4,6-dideoxy-3-fluoro-2-keto-β-d-glucopyranosyl analogues of 5-fluorouracil, N6-benzoyl adenine, uracil, thymine, N4-benzoyl cytosine and evaluation of their antitumor activities. Bioorg Chem 2010; 38:48-55. [DOI: 10.1016/j.bioorg.2009.11.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2009] [Revised: 11/09/2009] [Accepted: 11/11/2009] [Indexed: 11/23/2022]
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9
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Romeo G, Chiacchio U, Corsaro A, Merino P. Chemical Synthesis of Heterocyclic−Sugar Nucleoside Analogues. Chem Rev 2010; 110:3337-70. [PMID: 20232792 DOI: 10.1021/cr800464r] [Citation(s) in RCA: 183] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Giovanni Romeo
- Dipartimento Farmaco-Chimico, Università di Messina, Via SS Annunziata, 98168 Messina, Italy, Dipartimento di Scienze Chimiche, Università di Catania, Viale Andrea Doria 6, 95125 Catania, Italy, and Laboratorio de Sintesis Asimetrica, Departamento de Quimica Organica, Instituto de Ciencia de Materiales de Aragon, Universidad de Zaragoza, CSIC, E-50009 Zaragoza, Aragon, Spain, Pedro Merino:
| | - Ugo Chiacchio
- Dipartimento Farmaco-Chimico, Università di Messina, Via SS Annunziata, 98168 Messina, Italy, Dipartimento di Scienze Chimiche, Università di Catania, Viale Andrea Doria 6, 95125 Catania, Italy, and Laboratorio de Sintesis Asimetrica, Departamento de Quimica Organica, Instituto de Ciencia de Materiales de Aragon, Universidad de Zaragoza, CSIC, E-50009 Zaragoza, Aragon, Spain, Pedro Merino:
| | - Antonino Corsaro
- Dipartimento Farmaco-Chimico, Università di Messina, Via SS Annunziata, 98168 Messina, Italy, Dipartimento di Scienze Chimiche, Università di Catania, Viale Andrea Doria 6, 95125 Catania, Italy, and Laboratorio de Sintesis Asimetrica, Departamento de Quimica Organica, Instituto de Ciencia de Materiales de Aragon, Universidad de Zaragoza, CSIC, E-50009 Zaragoza, Aragon, Spain, Pedro Merino:
| | - Pedro Merino
- Dipartimento Farmaco-Chimico, Università di Messina, Via SS Annunziata, 98168 Messina, Italy, Dipartimento di Scienze Chimiche, Università di Catania, Viale Andrea Doria 6, 95125 Catania, Italy, and Laboratorio de Sintesis Asimetrica, Departamento de Quimica Organica, Instituto de Ciencia de Materiales de Aragon, Universidad de Zaragoza, CSIC, E-50009 Zaragoza, Aragon, Spain, Pedro Merino:
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11
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Manta S, Tsoukala E, Tzioumaki N, Goropevšek A, Pamulapati RT, Cencič A, Balzarini J, Komiotis D. Dideoxy fluoro-ketopyranosyl nucleosides as potent antiviral agents: synthesis and biological evaluation of 2,3- and 3,4-dideoxy-3-fluoro-4- and -2-keto-beta-d-glucopyranosyl derivatives of N(4)-benzoyl cytosine. Eur J Med Chem 2009; 44:2696-704. [PMID: 19246130 PMCID: PMC7126854 DOI: 10.1016/j.ejmech.2009.01.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2008] [Revised: 01/16/2009] [Accepted: 01/20/2009] [Indexed: 12/15/2022]
Abstract
The synthesis of the dideoxy fluoro ketopyranonucleoside analogues, 1-(2,3-dideoxy-3-fluoro-6-O-trityl-beta-d-glycero-hexopyranosyl-4-ulose)-N(4)-benzoyl cytosine (7a), 1-(3,4-dideoxy-3-fluoro-6-O-trityl-beta-d-glycero-hexopyranosyl-2-ulose)-N(4)-benzoyl cytosine (13a) and their detritylated analogues 8a and 14a, respectively, is described. Condensation of peracetylated 3-deoxy-3-fluoro-D-glucopyranose (1) with silylated N(4)-benzoyl cytosine, followed by selective deprotection and isopropylidenation afforded compound 2. Routine deoxygenation at position 2', followed by a deprotection-selective reprotection sequence afforded the partially tritylated dideoxy nucleoside of cytosine 6, which upon oxidation of the free hydroxyl group at the 4'-position, furnished the desired tritylated 2,3-dideoxy-3-fluoro ketonucleoside 7a in equilibrium with its hydrated form 7b. Compound 2 was the starting material for the synthesis of the dideoxy fluoro ketopyranonucleoside 13a. Similarly, several subsequent protection and deprotection steps as well as routine deoxygenation at position 4', followed by oxidation of the free hydroxyl group at the 2'-position of the partially tritylated dideoxy nucleoside 12, yielded the desired carbonyl compound 13a in equilibrium with its hydrated form 13b. Finally, trityl removal from 7a/b and 13a/b provided the unprotected 2,3-dideoxy-3-fluoro-4-keto and 3,4-dideoxy-3-fluoro-2-ketopyranonucleoside analogues 8a and 14a, in equilibrium with their gem-diol forms 8b and 14b. None of the compounds showed inhibitory activity against a wide variety of DNA and RNA viruses at subtoxic concentrations, except 7a/b that was highly efficient against rotavirus infection. Nucleoside 7a/b also exhibited cytostatic activity against cells of various cancers. BrdU-cell cycle analysis revealed that the mechanism of cytostatic activity may be related to a delay in G1/S phase and initiation of programmed cell death.
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Affiliation(s)
- Stella Manta
- Department of Biochemistry and Biotechnology, Laboratory of Organic Chemistry, University of Thessaly, 26 Ploutonos Str., 41221 Larissa, Greece
| | - Evangelia Tsoukala
- Department of Biochemistry and Biotechnology, Laboratory of Organic Chemistry, University of Thessaly, 26 Ploutonos Str., 41221 Larissa, Greece
| | - Niki Tzioumaki
- Department of Biochemistry and Biotechnology, Laboratory of Organic Chemistry, University of Thessaly, 26 Ploutonos Str., 41221 Larissa, Greece
| | - Aleš Goropevšek
- Department of Biochemistry, Medical Faculty, University of Maribor, Slovenia
| | - Ravi Teja Pamulapati
- Department of Microbiology, Biochemistry and Biotechnology, Faculty of Agriculture, University of Maribor, Vrbanska c.30, 2000 Maribor, Slovenia
| | - Avrelija Cencič
- Department of Microbiology, Biochemistry and Biotechnology, Faculty of Agriculture, University of Maribor, Vrbanska c.30, 2000 Maribor, Slovenia
- Department of Biochemistry, Medical Faculty, University of Maribor, Slovenia
| | - Jan Balzarini
- Rega Institute for Medical Research, Katholieke Universtiteit Leuven, 3000 Leuven, Belgium
| | - Dimitri Komiotis
- Department of Biochemistry and Biotechnology, Laboratory of Organic Chemistry, University of Thessaly, 26 Ploutonos Str., 41221 Larissa, Greece
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12
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Affiliation(s)
- Peng Liu
- The University of Georgia, College of Pharmacy, Athens, GA 30602
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13
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Diastereoselective Reduction of 1,3-Oxazolidin-2-ones and 1,3-Thiazolidin-2-ones. JOURNAL OF THE KOREAN CHEMICAL SOCIETY-DAEHAN HWAHAK HOE JEE 2008. [DOI: 10.5012/jkcs.2008.52.3.338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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14
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Tosh DK, Choi WJ, Kim HO, Lee Y, Pal S, Hou X, Choi J, Choi S, Jeong LS. Stereoselective Synthesis and Conformational Study of Novel 2′,3′-Didehydro-2′,3′-dideoxy-4′-selenonucleosides. J Org Chem 2008; 73:4259-62. [DOI: 10.1021/jo8003277] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dilip K. Tosh
- Laboratory of Medicinal Chemistry, College of Pharmacy,
Ewha Womans University, Seoul 120-750, Korea, and Department of Chemistry,
The University of Suwon, Kyunggi 445-743, Korea
| | - Won Jun Choi
- Laboratory of Medicinal Chemistry, College of Pharmacy,
Ewha Womans University, Seoul 120-750, Korea, and Department of Chemistry,
The University of Suwon, Kyunggi 445-743, Korea
| | - Hea Ok Kim
- Laboratory of Medicinal Chemistry, College of Pharmacy,
Ewha Womans University, Seoul 120-750, Korea, and Department of Chemistry,
The University of Suwon, Kyunggi 445-743, Korea
| | - Yoonji Lee
- Laboratory of Medicinal Chemistry, College of Pharmacy,
Ewha Womans University, Seoul 120-750, Korea, and Department of Chemistry,
The University of Suwon, Kyunggi 445-743, Korea
| | - Shantanu Pal
- Laboratory of Medicinal Chemistry, College of Pharmacy,
Ewha Womans University, Seoul 120-750, Korea, and Department of Chemistry,
The University of Suwon, Kyunggi 445-743, Korea
| | - Xiyan Hou
- Laboratory of Medicinal Chemistry, College of Pharmacy,
Ewha Womans University, Seoul 120-750, Korea, and Department of Chemistry,
The University of Suwon, Kyunggi 445-743, Korea
| | - Jungwon Choi
- Laboratory of Medicinal Chemistry, College of Pharmacy,
Ewha Womans University, Seoul 120-750, Korea, and Department of Chemistry,
The University of Suwon, Kyunggi 445-743, Korea
| | - Sun Choi
- Laboratory of Medicinal Chemistry, College of Pharmacy,
Ewha Womans University, Seoul 120-750, Korea, and Department of Chemistry,
The University of Suwon, Kyunggi 445-743, Korea
| | - Lak Shin Jeong
- Laboratory of Medicinal Chemistry, College of Pharmacy,
Ewha Womans University, Seoul 120-750, Korea, and Department of Chemistry,
The University of Suwon, Kyunggi 445-743, Korea
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15
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Samorì C, Guerrini A, Varchi G, Zunino F, Beretta GL, Femoni C, Bombardelli E, Fontana G, Battaglia A. Thiocamptothecin. J Med Chem 2008; 51:3040-4. [DOI: 10.1021/jm8001982] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Cristian Samorì
- Laboratory of Chemistry Istituto I.S.O.F.—Consiglio Nazionale delle Ricerche (CNR) Via P. Gobetti, 101, 40129-Bologna, Italy, Fondazione IRCCS Istituto Nazionale Tumori Via Venezian 1, 20133 Milano, Italy, Dipartimento di Chimica Inorganica, Facoltà di Chimica Industriale, Università degli Studi di Bologna V.le Risorgimento, 4 40100 Bologna, Italy, Indena S.p.A—Milano Viale Ortles 12, 20139-Milano, Italy
| | - Andrea Guerrini
- Laboratory of Chemistry Istituto I.S.O.F.—Consiglio Nazionale delle Ricerche (CNR) Via P. Gobetti, 101, 40129-Bologna, Italy, Fondazione IRCCS Istituto Nazionale Tumori Via Venezian 1, 20133 Milano, Italy, Dipartimento di Chimica Inorganica, Facoltà di Chimica Industriale, Università degli Studi di Bologna V.le Risorgimento, 4 40100 Bologna, Italy, Indena S.p.A—Milano Viale Ortles 12, 20139-Milano, Italy
| | - Greta Varchi
- Laboratory of Chemistry Istituto I.S.O.F.—Consiglio Nazionale delle Ricerche (CNR) Via P. Gobetti, 101, 40129-Bologna, Italy, Fondazione IRCCS Istituto Nazionale Tumori Via Venezian 1, 20133 Milano, Italy, Dipartimento di Chimica Inorganica, Facoltà di Chimica Industriale, Università degli Studi di Bologna V.le Risorgimento, 4 40100 Bologna, Italy, Indena S.p.A—Milano Viale Ortles 12, 20139-Milano, Italy
| | - Franco Zunino
- Laboratory of Chemistry Istituto I.S.O.F.—Consiglio Nazionale delle Ricerche (CNR) Via P. Gobetti, 101, 40129-Bologna, Italy, Fondazione IRCCS Istituto Nazionale Tumori Via Venezian 1, 20133 Milano, Italy, Dipartimento di Chimica Inorganica, Facoltà di Chimica Industriale, Università degli Studi di Bologna V.le Risorgimento, 4 40100 Bologna, Italy, Indena S.p.A—Milano Viale Ortles 12, 20139-Milano, Italy
| | - Giovanni Luca Beretta
- Laboratory of Chemistry Istituto I.S.O.F.—Consiglio Nazionale delle Ricerche (CNR) Via P. Gobetti, 101, 40129-Bologna, Italy, Fondazione IRCCS Istituto Nazionale Tumori Via Venezian 1, 20133 Milano, Italy, Dipartimento di Chimica Inorganica, Facoltà di Chimica Industriale, Università degli Studi di Bologna V.le Risorgimento, 4 40100 Bologna, Italy, Indena S.p.A—Milano Viale Ortles 12, 20139-Milano, Italy
| | - Cristina Femoni
- Laboratory of Chemistry Istituto I.S.O.F.—Consiglio Nazionale delle Ricerche (CNR) Via P. Gobetti, 101, 40129-Bologna, Italy, Fondazione IRCCS Istituto Nazionale Tumori Via Venezian 1, 20133 Milano, Italy, Dipartimento di Chimica Inorganica, Facoltà di Chimica Industriale, Università degli Studi di Bologna V.le Risorgimento, 4 40100 Bologna, Italy, Indena S.p.A—Milano Viale Ortles 12, 20139-Milano, Italy
| | - Ezio Bombardelli
- Laboratory of Chemistry Istituto I.S.O.F.—Consiglio Nazionale delle Ricerche (CNR) Via P. Gobetti, 101, 40129-Bologna, Italy, Fondazione IRCCS Istituto Nazionale Tumori Via Venezian 1, 20133 Milano, Italy, Dipartimento di Chimica Inorganica, Facoltà di Chimica Industriale, Università degli Studi di Bologna V.le Risorgimento, 4 40100 Bologna, Italy, Indena S.p.A—Milano Viale Ortles 12, 20139-Milano, Italy
| | - Gabriele Fontana
- Laboratory of Chemistry Istituto I.S.O.F.—Consiglio Nazionale delle Ricerche (CNR) Via P. Gobetti, 101, 40129-Bologna, Italy, Fondazione IRCCS Istituto Nazionale Tumori Via Venezian 1, 20133 Milano, Italy, Dipartimento di Chimica Inorganica, Facoltà di Chimica Industriale, Università degli Studi di Bologna V.le Risorgimento, 4 40100 Bologna, Italy, Indena S.p.A—Milano Viale Ortles 12, 20139-Milano, Italy
| | - Arturo Battaglia
- Laboratory of Chemistry Istituto I.S.O.F.—Consiglio Nazionale delle Ricerche (CNR) Via P. Gobetti, 101, 40129-Bologna, Italy, Fondazione IRCCS Istituto Nazionale Tumori Via Venezian 1, 20133 Milano, Italy, Dipartimento di Chimica Inorganica, Facoltà di Chimica Industriale, Università degli Studi di Bologna V.le Risorgimento, 4 40100 Bologna, Italy, Indena S.p.A—Milano Viale Ortles 12, 20139-Milano, Italy
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16
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Manta S, Agelis G, Botić T, Cencic A, Komiotis D. Unsaturated fluoro-ketopyranosyl nucleosides: Synthesis and biological evaluation of 3-fluoro-4-keto-β-d-glucopyranosyl derivatives of N4-benzoyl cytosine and N6-benzoyl adenine. Eur J Med Chem 2008; 43:420-8. [PMID: 17548129 DOI: 10.1016/j.ejmech.2007.04.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2007] [Revised: 04/04/2007] [Accepted: 04/05/2007] [Indexed: 10/23/2022]
Abstract
The protected beta-nucleosides 1-(2,4,6-tri-O-acetyl-3-deoxy-3-fluoro-beta-d-glucopyranosyl)-N(4)-benzoyl cytosine (2a) and 9-(2,4,6-tri-O-acetyl-3-deoxy-3-fluoro-beta-d-glucopyranosyl)-N(6)-benzoyl adenine (2b), were synthesized by the coupling of peracetylated 3-deoxy-3-fluoro-d-glucopyranose (1) with silylated N(4)-benzoyl cytosine and N(6)-benzoyl adenine, respectively. The nucleosides were deacetylated and several subsequent protection and deprotection steps afforded the partially acetylated nucleosides of cytosine 7a and adenine 7b, respectively. Finally, direct oxidation of the free hydroxyl group at 4'-position of 7a and 7b, and simultaneous elimination reaction of the beta-acetoxyl group, afforded the desired unsaturated 3-fluoro-4-keto-beta-d-glucopyranosyl derivatives. These newly synthesized compounds were evaluated for their potential antitumor and antiviral activities. Compared to 5FU, the newly synthesized derivatives showed to be more efficient as antitumor growth inhibitors and they exhibited direct antiviral effect toward rotavirus.
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Affiliation(s)
- Stella Manta
- Department of Biochemistry and Biotechnology, Laboratory of Organic Chemistry, University of Thessaly, 26 Ploutonos Street, 41221 Larissa, Greece
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Abstract
The electrophilic enantioselective sulfenylation of 1,3-dicarbonyl compounds with phenylsulfenyl chloride is effectively catalyzed by [Ti(TADDOLato)] complexes. The corresponding products are obtained in moderate to high yields. The highest ee values (up to 97 %) are obtained in toluene at room temperature and with a typical catalyst loading of 5 mol %. Bulky ester groups and sterically undemanding substituents at the alpha-position were found to be crucial structural features of the starting materials in order to assure high enantioselectivity. The absolute configuration of one of the chiral products has been determined. The stereochemical course of the reaction is similar to that of analogous [Ti(TADDOLato)]-catalyzed atom-transfer reactions. A common side-reaction the sulfenylated products undergo is a deacylation leading to racemic alpha-sulfenylated esters.
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Affiliation(s)
- Marjan Jereb
- Department of Organic Chemistry, Faculty of Chemistry and Chemical Technology, University of Ljubljana, Askerceva 5, 1000, Ljubljana, Slovenia
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Tsoukala E, Agelis G, Dolinsek J, Botić T, Cencic A, Komiotis D. An efficient synthesis of 3-fluoro-5-thio-xylofuranosyl nucleosides of thymine, uracil, and 5-fluorouracil as potential antitumor or/and antiviral agents. Bioorg Med Chem 2007; 15:3241-7. [PMID: 17337193 DOI: 10.1016/j.bmc.2007.02.031] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2006] [Revised: 02/12/2007] [Accepted: 02/16/2007] [Indexed: 11/29/2022]
Abstract
1,2:5,6-Di-O-isopropylidene-alpha-D-glucofuranose by the sequence of mild oxidation, reduction, fluorination, periodate oxidation, borohydride reduction, and sulfonylation gave 3-deoxy-3-fluoro-1,2-O-isopropylidene-5-O-p-toluenesulfonyl-alpha-D-xylofuranose (5). Tosylate 5 was converted to thioacetate derivative 6, which after acetolysis gave 1,2-di-O-acetyl-5-S-acetyl-3-deoxy-3-fluoro-5-thio-D-xylofuranose (7). Condensation of 7 with silylated thymine, uracil, and 5-fluorouracil afforded nucleosides 1-(5-S-acetyl-3-deoxy-3-fluoro-5-thio-beta-D-xylofuranosyl) thymine (8), 1-(5-S-acetyl-3-deoxy-3-fluoro-5-thio-beta-D-xylofuranosyl) uracil (9), and 1-(5-S-acetyl-3-deoxy-3-fluoro-5-thio-beta-D-xylofuranosyl) 5-fluorouracil (10). Compounds 8, 9, and 10 are biologically active against rotavirus infection and the growth of tumor cells.
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Affiliation(s)
- Evangelia Tsoukala
- Department of Biochemistry and Biotechnology, Laboratory of Organic Chemistry, University of Thessaly, 41221 Larissa, Greece
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19
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Wang J, Jin Y, Rapp KL, Schinazi RF, Chu CK. D- and L-2',3'-didehydro-2',3'-dideoxy-3'-fluoro-carbocyclic nucleosides: synthesis, anti-HIV activity and mechanism of resistance. J Med Chem 2007; 50:1828-39. [PMID: 17373782 PMCID: PMC2533426 DOI: 10.1021/jm061304k] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Introducing 2'-fluoro substitution on the 2',3'-double bond in carbocyclic nucleosides has provided biologically interesting compounds with potent anti-HIV activity. As an extension of our previous works in the discovery of anti-HIV agents, D- and L-2',3'-unsaturated 3'-fluoro carbocyclic nucleosides were synthesized and evaluated against HIV-1 in human peripheral blood mononuclear (PBM) cells. Among the synthesized L-series nucleosides, compounds 18, 19, 26 and 28 exhibited moderate antiviral activity (EC50 7.1 microM, 6.4 microM, 10.3 microM, and 20.7 microM, respectively), while among the D-series, the guanosine analogue (35, D-3'-F-C-d4G) exhibited the most potent anti-HIV activity (EC50 0.4 microM, EC90 2.8 microM). However, the guanosine analogue 35 was cross-resistant to the lamivudine-resistant variants (HIV-1M184V). Molecular modeling studies suggest that hydrophobic interaction as well as hydrogen-bonding stabilize the binding of compound 35 in the active site of wild type HIV reverse transcriptase (HIV-RT). In the case of L-nucleosides, these two effects are opposite which results in a loss of binding affinity. According to the molecular modeling studies, cross-resistance of D-3'-F-C-d4G (35) to M184V mutant may be caused by the realignment of the primer and template in the HIV-RTM184V interaction, which destabilizes the RT-inhibitor triphosphate complex, resulting in a significant reduction in anti-HIV activity of the D-guanine derivative 35.
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Affiliation(s)
- Jianing Wang
- The University of Georgia, College of Pharmacy, Athens, GA 30602
| | - Yunho Jin
- The University of Georgia, College of Pharmacy, Athens, GA 30602
| | - Kimberly L. Rapp
- Emory University School of Medicine/Veterans Affairs Medical Center, Atlanta, GA 30033
| | - Raymond F. Schinazi
- Emory University School of Medicine/Veterans Affairs Medical Center, Atlanta, GA 30033
| | - Chung K. Chu
- The University of Georgia, College of Pharmacy, Athens, GA 30602
- Corresponding Author: Dr. C. K. Chu, Distinguished Research Professor, College of Pharmacy, The University of Georgia, Athens, GA 30602, USA., Tel.: (706) 542-5379, Fax: (706) 542-5381, E-Mail:
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20
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Choo H, Beadle JR, Chong Y, Trahan J, Hostetler KY. Synthesis of the 5-phosphono-pent-2-en-1-yl nucleosides: a new class of antiviral acyclic nucleoside phosphonates. Bioorg Med Chem 2007; 15:1771-9. [PMID: 17166725 PMCID: PMC1810563 DOI: 10.1016/j.bmc.2006.11.038] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2006] [Accepted: 11/27/2006] [Indexed: 11/24/2022]
Abstract
A new class of acyclic nucleoside phosphonates, the 5-phosphono-pent-2-en-1-yl nucleosides and their hexadecyloxypropyl esters, were synthesized from butyn-1-ol. Only the hexadecyloxypropyl esters showed antiviral activity against herpes simplex virus type 1, in vitro. Hexadecyloxypropyl 1-(5-phosphono-pent-2-en-1-yl)-thymine was the most active and selective compound among the synthesized nucleotides with an EC50 value of 0.90 microM.
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Affiliation(s)
- Hyunah Choo
- Department of Medicine, Division of Infectious Disease, University of California, San Diego, La Jolla, CA 92093-0676 and the Veterans Medical Research Foundation, San Diego, CA 92161
- Life Sciences Division, Korea Institute of Science and Technology, PO Box 131, Cheongryang, Seoul 130-650, Korea
| | - James R. Beadle
- Department of Medicine, Division of Infectious Disease, University of California, San Diego, La Jolla, CA 92093-0676 and the Veterans Medical Research Foundation, San Diego, CA 92161
| | - Youhoon Chong
- Division of Biosciences and Biotechnology, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 143-701, Korea
| | - Julissa Trahan
- Department of Medicine, Division of Infectious Disease, University of California, San Diego, La Jolla, CA 92093-0676 and the Veterans Medical Research Foundation, San Diego, CA 92161
| | - Karl Y. Hostetler
- Department of Medicine, Division of Infectious Disease, University of California, San Diego, La Jolla, CA 92093-0676 and the Veterans Medical Research Foundation, San Diego, CA 92161
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21
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Sriharsha SN, Satish S, Shashikanth S, Raveesha KA. Design, synthesis and antibacterial activity of novel 1,3-thiazolidine pyrimidine nucleoside analogues. Bioorg Med Chem 2006; 14:7476-81. [PMID: 16890445 DOI: 10.1016/j.bmc.2006.07.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2006] [Revised: 07/03/2006] [Accepted: 07/07/2006] [Indexed: 10/24/2022]
Abstract
The synthesis of a new class of 1,3-thiazolidine nucleoside analogues in which furanose oxygen atom was replaced with nitrogen atom and 2'-carbon atom with sulfur atom is described. N-tert-butoxycarbonyl-2-acyloxy-4-trityloxymethyl-1,3-thiazolidine was coupled with the pyrimidine bases like uracil, thymine, etc. in the presence of lewis acids stannic chloride or trimethyl silyl triflate following Vorbruggen procedure. The antibacterial activity of the novel 1,3-thiazolidine pyrimidine nucleoside analogues is highlighted. All compounds (7a-e) with free NH group in the pyrimidine moiety showed significant biological activity against all the standard strains used and in that compounds 7d and 7e showed significant activity against 14 human pathogens tested.
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22
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Gadthula S, Chu CK, Schinazi RF. Synthesis and anti-HIV activity of beta-D-3'-azido-2',3'-unsaturated nucleosides and beta-D-3'-azido-3'-deoxyribofuranosylnucleosides. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2006; 24:1707-27. [PMID: 16438043 DOI: 10.1080/15257770500267170] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Since the discovery of 3'-azido-3'-deoxythymidine (AZT) and 2',3'-didehydro-2',3'-dideoxythymidine (d4T) as potent and selective inhibitors of the replication of human immunodeficiency virus (HIV), there has been a growing interest for the synthesis of 2',3'-didehydro-2',3'dideoxynucleosides with electron withdrawing groups on the sugar moiety. Here we described an efficient method for the synthesis of such nucleoside analogs bearing structural features of both AZT and d4T The key intermediate, 3-azido-1,2-bis-O-acetyl-5-O-benzoyl-3-deoxy-D-ribofuranose, 5 was synthesized from commercially available D-xylose in five steps, from which a series of pyrimidine and purine nucleosides were synthesized in high yields. The resultant protected nucleosides were converted to target nucleosides using appropriate chemical modifications. The final nucleosides were evaluated as potential anti-HIV agents.
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Affiliation(s)
- Srinivas Gadthula
- Department of Pharmaceutical and Biomedical Sciences, College of Pharmacy, The University of Georgia, Athens, Georgia 30602, USA
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23
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Ravelet C, Michaud M, Ravel A, Grosset C, Villet A, Peyrin E. Streptavidin chiral stationary phase for the separation of adenosine enantiomers. J Chromatogr A 2004; 1036:155-60. [PMID: 15146916 DOI: 10.1016/j.chroma.2004.02.083] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In this paper, a microbore column packed with streptavidin particles was used, at various temperatures (0-24 degrees C), to separate the adenosine enantiomers by HPLC. Using an aqueous mobile phase, the apparent enantioseparation was high for a small molecule, varying from 11.5 at 0 degrees C to 6.2 at 24 degrees C. From the experiments carried out with a streptavidin-biotin complex stationary phase, it was demonstrated that the blockage of the biotin sites of the immobilized streptavidin was responsible for a strong decrease in the enantioselectivity via a direct and/or an indirect effect. From the analysis of the concentration dependencies of the solute retention factor, it was also shown that a reduction of the D-adenosine specific binding sites occurred at the lowest temperature. The thermodynamic parameters determined from the van't Hoff plots indicated that the D-adenosine binding to the streptavidin specific sites was enthalpically driven.
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Affiliation(s)
- Corinne Ravelet
- Département de Pharmacochimie Moléculaire UMR 5063 CNRS-UJF, Equipe de Chimie Analytique, Université Joseph Fourier, ICMG FR 2607, UFR de Pharmacie de Grenoble, Avenue de Verdun, 38240 Meylan, France
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Choo H, Chong Y, Chu CK. The role of 2',3'-unsaturation on the antiviral activity of anti-HIV nucleosides against 3TC-resistant mutant (M184V). Bioorg Med Chem Lett 2003; 13:1993-6. [PMID: 12781181 DOI: 10.1016/s0960-894x(03)00330-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Molecular modeling studies show that the 2',3'-double bond of the sugar moiety of various 2',3'-unsaturated nucleosides interacts with the aromatic moiety of Tyr115 of HIV-1 reverse transcriptase (RT) by hydrophobic pi-pi interaction. In 3TC-resistant mutant (M184V) RT, 2'-fluoro-2',3'-unsaturated nucleosides with a bulky 4'-substituent experience significant steric hindrance with the side chain of Val184.
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Affiliation(s)
- Hyunah Choo
- Department of Pharmaceutical and Biomedical Sciences, College of Pharmacy, The University of Georgia, Athens, GA 30602, USA
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25
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Chapter 5.1 Five-membered ring systems: Thiophenes & Se, Te analogs. ACTA ACUST UNITED AC 2003. [DOI: 10.1016/s0959-6380(03)80008-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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