IP Library Granted Patent US 8,629,170
Granted Patent B2
US 8,629,170 · App. 12/912,325 · Granted Jan 14, 2014

Anti-viral drugs for treatment of arenavirus infection

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Quick Facts
Patent No.
US 8,629,170
App. No.
12/912,325
Granted
Jan 14, 2014
Kind
B2
Abstract

Compounds, methods and pharmaceutical compositions for treating viral infections, by administering certain novel compounds in therapeutically effective amounts are disclosed. Methods for preparing the compounds and methods of using the compounds and pharmaceutical compositions thereof are also disclosed. In particular, the treatment and prophylaxis of viral infections such as caused by hemorrhagic fever viruses is disclosed, i.e., including but not limited to, Arenaviridae (Junin, Machupo, Guanarito, Sabia, Lassa, Tacaribe, Pichinde, and LCMV), Filoviridae (Ebola and Marburg viruses), Flaviviridae (yellow fever, Omsk hemorrhagic fever and Kyasanur Forest disease viruses), and Bunyaviridae (Rift Valley fever).

Claims (52)

1. A composition comprising a compound of Formula I

wherein R l and R 2 are independently hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, arylalkyl, aryl, acyl, arylacyl, hydroxy, alkyloxy, alkylthio, amino, alkylamino, acetamido, halogen, cyano or nitro;

R 3 is hydrogen, acyl, arylacyl or sulfonyl; and

Ar 1 and Ar 2 are independently (un)substituted aryl and a pharmaceutically acceptable carrier therefore.

2. The composition of claim 1 , wherein R 1 is hydrogen.

3. The composition of claim 1 , wherein R 2 is hydrogen.

4. The composition of claim 1 , wherein R 3 is hydrogen.

5. The composition of claim 1 , wherein R 3 is —S(O) 2 -substituted aryl.

6. The composition of claim 5 , wherein R 3 is —S(O) 2 -substituted phenyl.

7. The composition of claim 6 , wherein R 3 is —S(O) 2 -alkoxyphenyl.

8. The composition of claim 7 , wherein R 3 is —S(O) 2 -methoxyphenyl.

9. The composition of claim 8 , wherein R 3 is —S(O) 2 -p-methoxyphenyl.

10. The composition of claim 1 , wherein Ar 1 is unsubstituted aryl.

11. The composition of claim 10 , wherein Ar 1 is unsubstituted phenyl.

12. The composition of claim 1 , wherein Ar 1 is mono-substituted aryl.

13. The composition of claim 1 , wherein Ar 1 is mono-substituted phenyl.

14. The composition of claim 13 wherein Ar 1 is alkoxyphenyl.

15. The composition of claim 14 wherein Ar 1 is methoxyphenyl.

16. The composition of claim 15 , wherein Ar 1 is o-methoxyphenyl.

17. The composition of claim 15 , wherein Ar 1 is p-methoxyphenyl.

18. The composition of claim 1 , wherein Ar 2 is substituted aryl.

19. The composition of claim 18 , wherein Ar 2 is substituted phenyl.

20. The composition of claim 19 , wherein Ar 2 is mono-substituted phenyl.

21. The composition of claim 20 , wherein Ar 2 is alkoxyphenyl.

22. The composition of claim 21 , wherein Ar 2 is methoxyphenyl.

23. The composition of claim 22 , wherein Ar 2 is o-methoxyphenyl.

24. The composition of claim 22 , wherein Ar 2 is m-methoxyphenyl.

25. The composition of claim 22 , wherein Ar 2 is p-methoxyphenyl.

26. The composition of claim 21 , wherein Ar 2 is ethoxyphenyl.

27. The composition of claim 26 , wherein Ar 2 is p-ethoxyphenyl.

28. The composition of claim 19 , wherein Ar 2 is alkylphenyl.

29. The composition of claim 28 , wherein Ar 2 is methylphenyl.

30. The composition of claim 29 , wherein Ar 2 is p-methylphenyl.

31. The composition of claim 28 , wherein Ar 2 is propylphenyl.

32. The composition of claim 31 , wherein Ar 2 is p-propylphenyl.

33. The composition of claim 32 , wherein Ar 2 is p-isopropylphenyl.

34. The composition of claim 1 , wherein Ar 2 is halo-substituted phenyl.

35. The composition of claim 28 , wherein Ar 2 is p-halo-substituted phenyl.

36. The composition of claim 35 , wherein Ar 2 is p-bromophenyl.

37. The composition of claim 36 , wherein Ar 2 is p-chlorophenyl.

38. The composition of claim 20 , wherein Ar 2 is hydroxyphenyl.

39. The composition of claim 38 , wherein Ar 2 is o-hydroxyphenyl.

40. The composition of claim 20 , wherein Ar 2 is dimethylaminophenyl.

41. The composition of claim 40 , wherein Ar 2 is p-dimethylaminophenyl.

42. The composition of claim 20 , wherein Ar 2 is —S(O) 2 -substituted aryl.

43. The composition of claim 42 , wherein Ar 2 is —S(O) 2 -substituted phenyl.

44. The composition of claim 43 , wherein Ar 2 is —S(O) 2 -alkoxyphenyl.

45. The composition of claim 38 , wherein Ar 2 is —S(O) 2 -methoxyphenyl.

46. The composition of claim 45 , wherein Ar 2 is —S(O) 2 -p-methoxyphenyl.

47. The composition of claim 19 , wherein Ar 2 is diphenyl.

48. The composition of claim 1 , wherein compound of Formula I is selected from the group consisting of (4-Methoxy-benzyl)-[1-(4-methoxy-phenyl)-1H-benzimidazol-5-yl]-amine, (4-Dimethylamino-benzyl)-[1-(2-methoxy-phenyl)-1H-benzimidazol-5-yl]-amine, (4-Dimethylamino-benzyl)-(1-phenyl-1H-benzimidazol-5-yl)-amine, (4-Dimethylamino-benzyl)-(1-phenyl-1H-benzimidazol-5-yl)-amine, (4-Bromo-benzyl)-[1-(4-methoxy-phenyl)-1H-benzimidazol-5-yl]-amine, (2-Methoxy-benzyl)-[1-(4-methoxy-phenyl)-1H-benzimidazol-5-yl]-amine, (4-Ethoxy-benzyl)-[1-(4-methoxy-phenyl)-1H-benzimidazol-5-yl]-amine, (2-Methoxy-benzyl)-[1-(2-methoxy-phenyl)-1H-benzimidazol-5-yl]-amine, [1-(4-Methoxy-phenyl)-1H-benzimidazol-5-yl]- naphthalen-1-ylmethyl-amine, (4-Methoxy-benzyl)-(1-p-tolyl-1H-benzimidazol-5-yl)-amine, (4-Chloro-benzyl)-[1-(4-methoxy-phenyl)-1H-benzimidazol-5-yl]-amine, (3,4-Dimethoxy-benzyl)-[1-(4-methoxy-phenyl)-1H-benzimidazol-5-yl]-amine, (4-Bromo-benzyl)-(1-phenyl-1H-benzimidazol-5-yl)-amine, N-(4-Ethoxy-benzyl)-N-[1-(2-methoxy-phenyl)-1H-benzimidazol-5-yl]-4-methylbenzenesulfonamide, [1-(4-Methoxy-phenyl)-1H-benzimidazol-5-yl]-(4-methyl-benzyl)-amine, (2,3-Dimethoxy-benzyl)-[1-(4-methoxy-phenyl)-1H-benzimidazol-5-yl]-amine, (4-Methoxy-benzyl)-[1-(2-methoxy-phenyl)-1H-benzimidazol-5-yl]-amine, (3-Methoxy-benzyl)-[1-(4-methoxy-phenyl)-1H-benzimidazol-5-yl]-amine, (2,3-Dimethoxy-benzyl)-[1-(2-methoxy-phenyl)-1H-benzimidazol-5-yl]-amine, (4-Isopropyl-benzyl)-[1-(4-methoxy-phenyl)-1H-benzimidazol-5-yl]-amine, (4-Methoxy-benzyl)-(1-phenyl-1H-benzimidazol-5-yl)-amine, N-(4-Isopropyl-benzyl)-N-[1-(4-methoxy-phenyl)-1H-benzimidazol-5-yl]-acetamide, and N-(4-Isopropyl-benzyl)-N-[1-(4-methoxy-phenyl)-1H-benzimidazol-5-yl]-4-methylbenzenesulfonamide.

49. The composition of claim 1 , wherein the compound of Formula I is (4-isopropyl-benzyl)-[1-(4-methoxy-phenyl)-1H-benzimidazol-5-yl]-amine.

Assignments (5)
RELEASE OF SECURITY INTEREST Recorded Apr 2, 2015
From: GENERAL ELECTRIC CAPITAL CORPORATION, AS AGENT
To: SIGA TECHNOLOGIES, INC.
Reel/Frame 035319/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 22, 2014
From: SIGA TECHNOLOGIES INC.
To: KINETA FOUR LLC
Reel/Frame 033588/0427 →
RELEASE OF SECURITY INTEREST Recorded Aug 14, 2014
From: GENERAL ELECTRIC CAPITAL CORPORATION
To: SIGA TECHNOLOGIES INC.
Reel/Frame 033544/0324 →
SECURITY AGREEMENT Recorded Dec 31, 2012
From: SIGA TECHNOLOGIES, INC.
To: GE CAPITAL EQUITY INVESTMENTS, INC. C/O GE HEALTHCARE FINANCIAL SERVICES, INC.
Reel/Frame 029557/0771 →
CONFIRMATORY LICENSE Recorded Dec 22, 2011
From: SIGA TECHNOLOGIES, INC.
To: NATIONAL INSTITUTES OF HEALTH (NIH), U.S. DEPT. OF HEALTH AND HUMAN SERVICES (DHHS), U.S. GOVERNMENT
Reel/Frame 027437/0887 →