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Last Updated: October 22, 2019

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Claims for Patent: 9,585,906

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Summary for Patent: 9,585,906
Title:Nucleoside phosphoramidate prodrugs
Abstract: Disclosed herein are phosphoramidate prodrugs of nucleoside derivatives for the treatment of viral infections in mammals, which is a compound, its stereoisomer, salt (acid or basic addition salt), hydrate, solvate, or crystalline form thereof, represented by the following structure: ##STR00001## Also disclosed are methods of treatment, uses, and processes for preparing each of which utilize the compound represented by formula I.
Inventor(s): Du; Jinfa (Redwood City, CA), Nagarathnam; Dhanapalan (Bethany, CT), Sofia; Michael J. (Doylestown, PA), Wang; Peiyuan (San Mateo, CA)
Assignee: Gilead Pharmasset LLC (Foster City, CA)
Application Number:14/656,546
Patent Claims: 1. A compound represented by the following formula: ##STR00092## wherein (a) R.sup.1 is phenyl; (b) R.sup.2 is hydrogen; (c) R.sup.3a is CH.sub.3; (d) R.sup.3b is H; (e) R.sup.4 is .sup.tPr, .sup.nPr, .sup.nBu, 2-butyl, .sup.tBu, or benzyl; (f) R.sup.5 is H; (g) R.sup.6 is CH.sub.3; (h) X is F; (i) Y is OH; (j) R.sup.7 is H; and (k) R.sup.8 is H.

2. The compound of claim 1, having the following structure: ##STR00093##

3. The compound of claim 1, having the following structure: ##STR00094##

4. The compound of claim 1, having the following structure: ##STR00095##

5. A pharmaceutical composition comprising a compound according to claim 1 and a pharmaceutically acceptable excipient.

6. A method of treating HCV comprising administering a therapeutically effective amount of a compound according to claim 1 to a human subject in need thereof.

7. The method of claim 6 further comprising administering to the human subject a therapeutically effective amount of a second antiviral agent.

8. The method of claim 7 wherein the second antiviral agent is an NS5A inhibitor.

9. The method of claim 7 wherein the second antiviral agent is an NS3 protease inhibitor.

10. The method of claim 6 further comprising administering to the human subject therapeutically effective amounts of an NS5A inhibitor and an NS3 protease inhibitor.

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