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Bondada L, Detorio M, Bassit L, Tao S, Montero CM, Singletary TM, Zhang H, Zhou L, Cho JH, Coats SJ, Schinazi RF. Adenosine Dioxolane Nucleoside Phosphoramidates as Antiviral Agents for Human Immunodeficiency and Hepatitis B Viruses. ACS Med Chem Lett 2013; 4:747-751. [PMID: 24015326 DOI: 10.1021/ml4001497] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
There are currently six nucleoside reverse transcriptase inhibitors (NRTI) that are FDA approved for human clinical use and these remain the backbone of current HIV therapy. In order for these NRTIs to be effective they need to be phosphorylated consecutively by cellular kinases to their triphosphate forms. Herein, we report the synthesis of C-6 modified (-)-β-D-(2R,4R)-1,3-dioxolane adenosine nucleosides and their nucleotides including our novel phosphoramidate prodrug technology. We have introduced a side chain moiety on the phenol portion of the phosphoramidate to reduce the toxicity potential. The synthesized phosphoramidates displayed up to a 3,600-fold greater potency versus HIV-1 when compared to their corresponding parent nucleoside and were up to 300-fold more potent versus HBV. No cytotoxicity was observed up to 100 μM in the various cell systems tested, except for compound 17 and 18 which displayed a CC50 of 7.3 and 12 μM respectively in Huh-7 cells. The improved and significant dual antiviral activity of these novel phosphoramidate nucleosides was partially explained by the increased intracellular formation of the adenosine dioxolane triphosphate.
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Affiliation(s)
- Lavanya Bondada
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, and Veterans Affairs Medical Center, Decatur, Georgia 30033, United States
| | - Mervi Detorio
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, and Veterans Affairs Medical Center, Decatur, Georgia 30033, United States
| | - Leda Bassit
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, and Veterans Affairs Medical Center, Decatur, Georgia 30033, United States
| | - Sijia Tao
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, and Veterans Affairs Medical Center, Decatur, Georgia 30033, United States
| | - Catherine M. Montero
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, and Veterans Affairs Medical Center, Decatur, Georgia 30033, United States
| | - Tyana M. Singletary
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, and Veterans Affairs Medical Center, Decatur, Georgia 30033, United States
| | - Hongwang Zhang
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, and Veterans Affairs Medical Center, Decatur, Georgia 30033, United States
| | - Longhu Zhou
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, and Veterans Affairs Medical Center, Decatur, Georgia 30033, United States
| | - Jong-Hyun Cho
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine, and Veterans Affairs Medical Center, Decatur, Georgia 30033, 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, Decatur, Georgia 30033, United States
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