Methanesulfonamide, N-[4-[(1E)-2-[5-(3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinyl)-3-(1,1-dimethylethyl)-2-methoxyphenyl]ethenyl]phenyl]-, potassium salt, hydrate (1:1:3)

ABT-072 (potassium trihydrate) is an orally active and potent non-nucleoside HCV NS5B polymerase inhibitor (HCV GT1a EC50=1 nM; HCV GT1b EC50=0.3 nM)[1][2][3].

[1] Lawitz E, et al. A phase 2a trial of 12-week interferon-free therapy with two direct-acting antivirals (ABT-450/r, ABT-072) and ribavirin in IL28B C/C patients with chronic hepatitis C genotype 1. J Hepatol. 2013;59(1):18-23. DOI:10.1016/j.jhep.2013.02.009
[2] Shi Y, et al. Assessing Supersaturation and Its Impact on In Vivo Bioavailability of a Low-Solubility Compound ABT-072 With a Dual pH, Two-Phase Dissolution Method. J Pharm Sci. 2016;105(9):2886-2895. DOI:10.1016/j.xphs.2016.04.036
[3] Randolph JT, et al. Synthesis and Biological Characterization of Aryl Uracil Inhibitors of Hepatitis C Virus NS5B Polymerase: Discovery of ABT-072, a trans-Stilbene Analog with Good Oral Bioavailability. J Med Chem. 2018;61(3):1153-1163. DOI:10.1021/acs.jmedchem.7b01630