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Biological Activity:
PSI-7977 is an investigational nucleotide analog currently in Phase 2 for treatment of chronic HCV infection. PSI-7851 is a mixture of two similar molecules, PSI-7976 and PSI-7977, which exist in PSI-7851 as isomers of each other. Once inside a liver cell, both molecules are rapidly converted to the same active triphosphate. Given the ability to more easily manufacture PSI-7977, and potentially advantageous in vitro characteristics, PSI-7977 was selected for further clinical development. Antiviral agents.
References:
1. Murakami E, et al. J Biol Chem, 2010, 285(45), 34337-34347.
2. Sofia MJ, et al. J Med Chem, 2010, 53(19), 7202-7218.