Discovery of ASP5286: A Novel Non-Immunosuppressive Cyclophilin Inhibitor for the Treatment of HCV
2020
Abstract Evidence indicates that hepatitis C virus (HCV) utilizes cellular cyclophilin proteins in its replication, and cyclophilin inhibitors represent a new class of anti-HCV agents. We have established an efficient synthetic methodology to generate FR901459 derivatives via N, O-acyl migration reaction while avoiding total synthesis. Through a detailed structure-activity relationship study, we improved anti-HCV activity while decreasing immunosuppressive activity. Additionally, we discovered the importance of substitution at the 3 position for not only improving anti-HCV activity but also pharmacokinetic profile. Finally, by striking an appropriate balance between potency, solubility, and permeability, we discovered ASP5286 (13) as a potential clinical candidate for anti-HCV therapy.
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