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Ito Y, Mizuno K, Sumise S, Kimura A, Noguchi N, Fuchi Y, Hari Y. Generation of 4'-Carbon Radicals via 1,5-Hydrogen Atom Transfer for the Synthesis of Bridged Nucleosides. Org Lett 2022; 24:7696-7700. [PMID: 36214750 DOI: 10.1021/acs.orglett.2c03285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The rapid and facile generation of 4'-carbon radicals from oxime imidates of nucleosides via 1,5-hydrogen atom transfer induced by iminyl radicals was developed. The cyclization of 4'-carbon radicals with olefins, followed by the hydrolysis of imidate residues, provided various 2'-O,4'-C- and 3'-O,4'-C-bridged nucleosides. This operationally simple approach can be applied to the few-step syntheses of 6'S-methyl-2'-O,4'-C-ethylene-bridged 5-methyluridine (6'S-Me-ENA-T) and S-constrained ethyl-bridged 5-methyluridine (S-cEt-T).
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Affiliation(s)
- Yuta Ito
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Nishihama, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Koichi Mizuno
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Nishihama, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Sanae Sumise
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Nishihama, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Airi Kimura
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Nishihama, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Nozomi Noguchi
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Nishihama, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Yasufumi Fuchi
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Nishihama, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Yoshiyuki Hari
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Nishihama, Yamashiro-cho, Tokushima 770-8514, Japan
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Zandi K, Bassit L, Amblard F, Cox BD, Hassandarvish P, Moghaddam E, Yueh A, Libanio Rodrigues GO, Passos I, Costa VV, AbuBakar S, Zhou L, Kohler J, Teixeira MM, Schinazi RF. Nucleoside Analogs with Selective Antiviral Activity against Dengue Fever and Japanese Encephalitis Viruses. Antimicrob Agents Chemother 2019; 63:e00397-19. [PMID: 31061163 PMCID: PMC6591611 DOI: 10.1128/aac.00397-19] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 05/03/2019] [Indexed: 02/07/2023] Open
Abstract
Dengue virus (DENV) and Japanese encephalitis virus (JEV) are important arthropod-borne viruses from the Flaviviridae family. DENV is a global public health problem with significant social and economic impacts, especially in tropical and subtropical areas. JEV is a neurotropic arbovirus endemic to east and southeast Asia. There are no U.S. FDA-approved antiviral drugs available to treat or to prevent DENV and JEV infections, leaving nearly one-third of the world's population at risk for infection. Therefore, it is crucial to discover potent antiviral agents against these viruses. Nucleoside analogs, as a class, are widely used for the treatment of viral infections. In this study, we discovered nucleoside analogs that possess potent and selective anti-JEV and anti-DENV activities across all serotypes in cell-based assay systems. Both viruses were susceptible to sugar-substituted 2'-C-methyl analogs with either cytosine or 7-deaza-7-fluoro-adenine nucleobases. Mouse studies confirmed the anti-DENV activity of these nucleoside analogs. Molecular models were assembled for DENV serotype 2 (DENV-2) and JEV RNA-dependent RNA polymerase replication complexes bound to nucleotide inhibitors. These models show similarities between JEV and DENV-2, which recognize the same nucleotide inhibitors. Collectively, our findings provide promising compounds and a structural rationale for the development of direct-acting antiviral agents with dual activity against JEV and DENV infections.
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Affiliation(s)
- Keivan Zandi
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
- Tropical Infectious Disease Research and Education Center, Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Leda Bassit
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Franck Amblard
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Bryan D Cox
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Pouya Hassandarvish
- Tropical Infectious Disease Research and Education Center, Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Ehsan Moghaddam
- Tropical Infectious Disease Research and Education Center, Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Andrew Yueh
- Institute of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Taiwan, Republic of China
| | - Gisele Olinto Libanio Rodrigues
- Center for Research and Drug Development, Instituto de Ciencias Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ingredy Passos
- Center for Research and Drug Development, Instituto de Ciencias Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Vivian V Costa
- Center for Research and Drug Development, Instituto de Ciencias Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Sazaly AbuBakar
- Tropical Infectious Disease Research and Education Center, Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Longhu Zhou
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
| | - James Kohler
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Mauro M Teixeira
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
- Center for Research and Drug Development, Instituto de Ciencias Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Raymond F Schinazi
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
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Pradere U, Garnier-Amblard E, Coats SJ, Amblard F, Schinazi RF. Synthesis of nucleoside phosphate and phosphonate prodrugs. Chem Rev 2014; 114:9154-218. [PMID: 25144792 PMCID: PMC4173794 DOI: 10.1021/cr5002035] [Citation(s) in RCA: 386] [Impact Index Per Article: 38.6] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Indexed: 01/29/2023]
Affiliation(s)
- Ugo Pradere
- Center
for AIDS Research, Laboratory of Biochemical Pharmacology, Department
of Pediatrics, Emory University School of
Medicine, and Veterans Affairs Medical Center, Atlanta, Georgia 30322, United States
| | | | | | - Franck Amblard
- Center
for AIDS Research, Laboratory of Biochemical Pharmacology, Department
of Pediatrics, Emory University School of
Medicine, and Veterans Affairs Medical Center, Atlanta, Georgia 30322, United States
| | - Raymond F. Schinazi
- Center
for AIDS Research, Laboratory of Biochemical Pharmacology, Department
of Pediatrics, Emory University School of
Medicine, and Veterans Affairs Medical Center, Atlanta, Georgia 30322, United States
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Hervé G, Sartori G, Enderlin G, Mackenzie G, Len C. Palladium-catalyzed Suzuki reaction in aqueous solvents applied to unprotected nucleosides and nucleotides. RSC Adv 2014. [DOI: 10.1039/c3ra47911k] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Nucleoside analogues have attracted much attention due to their potential biological activities.
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Affiliation(s)
- Gwénaëlle Hervé
- Transformations Intégrées de la Matière Renouvelable
- UTC-ESCOM
- Centre de Recherche Royallieu
- F-60200 Compiègne, France
| | - Guillaume Sartori
- Transformations Intégrées de la Matière Renouvelable
- UTC-ESCOM
- Centre de Recherche Royallieu
- F-60200 Compiègne, France
| | - Gérald Enderlin
- Transformations Intégrées de la Matière Renouvelable
- UTC-ESCOM
- Centre de Recherche Royallieu
- F-60200 Compiègne, France
| | | | - Christophe Len
- Transformations Intégrées de la Matière Renouvelable
- UTC-ESCOM
- Centre de Recherche Royallieu
- F-60200 Compiègne, France
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