Abstract:
:A series of next in class small-molecule hepatitis C virus (HCV) NS5A inhibitors with picomolar potency containing 2-pyrrolidin-2-yl-5-{4-[4-(2-pyrrolidin-2-yl-1H-imidazol-5-yl)buta-1,3-diynyl]phenyl}-1H-imidazole cores was designed based on the SAR studies available for the reported NS5A inhibitors. Compound 13a (AV4025), with (S,S,S,S)-stereochemistry (EC50 = 3.4 ± 0.2 pM, HCV replicon genotype 1b), was dramatically more active than were the compounds with two (S)- and two (R)-chiral centers. Human serum did not significantly reduce the antiviral activity (<4-fold). Relatively favorable pharmacokinetic features and good oral bioavailability were observed during animal studies. Compound 13a was well tolerated in rodents (in mice, LD50 = 2326 mg/kg or higher), providing a relatively high therapeutic index. During safety, pharmacology and subchronic toxicity studies in rats and dogs, it was not associated with any significant pathological or clinical findings. This compound is currently being evaluated in phase I/II clinical trials for the treatment of HCV infection.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Ivachtchenko AV,Mitkin OD,Yamanushkin PM,Kuznetsova IV,Bulanova EA,Shevkun NA,Koryakova AG,Karapetian RN,Bichko VV,Trifelenkov AS,Kravchenko DV,Vostokova NV,Veselov MS,Chufarova NV,Ivanenkov YAdoi
10.1021/jm500951rsubject
Has Abstractpub_date
2014-09-25 00:00:00pages
7716-30issue
18eissn
0022-2623issn
1520-4804journal_volume
57pub_type
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