Journal of Medicinal Chemistry p. 5972 - 5989 (2020)
Update date:2022-08-15
Topics:
Jiang, Xinbei
Tan, Jiali
Wang, Yixuan
Chen, Jinhua
Li, Jianrui
Li, Jianrui
Jiang, Zhi
Quan, Yanni
Jin, Jie
Li, Yuhuan
Li, Yuhuan
Cen, Shan
Li, Yanping
Peng, Zonggen
Peng, Zonggen
Li, Zhuorong
Although the direct-acting antivirals revolutionized the hepatitis C virus (HCV) infection treatment in the last decade, more efforts are needed to reach the elimination of HCV in the absence of a vaccine. 4-(Piperazin-1-yl)-2-((p-tolylamino)methyl)-benzonitrile (1) is a modest HCV inhibitor identified from an in-house screening using a HCV-infected Huh7.5 cell culture. Starting from it, the chemical optimization afforded a new 2-((4-arylpiperazin-1-yl)methyl)benzonitrile scaffold with significantly increased antiviral activity against HCV. A highly effective HCV inhibitor, 35 (L0909, EC50 = 0.022 μM, SI > 600), was identified by the structure-activity relationship study. The biological study revealed that L0909 could block HCV replication by acting on the HCV entry stage. The high sensitivity to clinical resistant HCV mutants and synergistic effect with clinical drugs were observed for this compound. The further pharmaceutical studies demonstrated that L0909 is long-lasting, is orally available, and has low toxicity in vivo. These results show L0909 as a promising HCV entry inhibitor for single or combinational therapeutic potential.
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