IP Library Granted Patent US 9,566,254
Granted Patent B2
US 9,566,254 · App. 14/955,697 · Granted Feb 14, 2017

Inhibitors and methods of inhibiting bacterial and viral pathogens

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Quick Facts
Patent No.
US 9,566,254
App. No.
14/955,697
Granted
Feb 14, 2017
Kind
B2
Abstract

Compounds, pharmaceutical compositions and methods for treating viral and bacterial infections, by administering certain thiourea compounds, specifically acylthiourea, carboximidoylthiourea and S-alkyl isothiourea derivatives and analogs, in therapeutically effective amounts are disclosed.

Claims (43)

1. A method for the treatment of a viral or bacterial infection or disease associated therewith wherein the viral infection is caused by a virus family selected from the group consisting of: Bunyaviridae, Poxviridae, Arenaviridae, Picornaviridae, Togaviridae, Flaviviridae, Filoviridae, Paramyxoviridae, Orthomyxoviridae and Retroviridae, comprising administering in a therapeutically effective amount to a mammal in need thereof, a compound of Formula II below or a pharmaceutically acceptable salt thereof:

wherein X is selected from the group consisting of oxygen and NH;

Y is selected from the group consisting of: —CH 2 —, —C(═O)—, —C(═S)— and —C(═NH)—;

A is selected from the group consisting of: N and CR 5 ;

B is selected from the group consisting of: N and CR 6 ;

R 1 is selected from the group consisting of: hydrogen and ethyl;

R 2 is selected from the group consisting of: hydrogen and chloro;

R 3 is selected from the group consisting of: hydrogen, methoxy, amino and hydroxyl;

R 4 is selected from the group consisting of: hydrogen, chloro and amino;

R 5 is selected from the group consisting of hydrogen and aminomethyl; and

R 6 is selected from the group consisting of hydrogen, amino and aminomethyl.

2. The method of claim 1 , wherein X is oxygen.

3. The method of claim 1 , wherein Y is —CH 2 —.

4. The method of claim 1 , wherein Y is —C(═O)—.

5. The method of claim 1 , wherein A is C—H.

6. The method of claim 1 , wherein B is C—H.

7. The method of claim 1 , wherein R 1 is hydrogen.

8. The method of claim 1 , wherein R 2 is hydrogen.

9. The method of claim 1 , wherein R 3 is methoxy.

10. The method of claim 1 , wherein R 4 is chloro.

11. The method of claim 1 , wherein each of R 5 and R 6 is hydrogen.

12. The method of claim 1 , wherein the compound of Formula II is selected from the group consisting of: N-[4-[(4-tert-butylbenzoyl)-carbamothioylamino]-2-hydroxy-phenyl]-2-chloro-benzamide; 4-tert-butyl-N-[[4-[(2-chlorophenyl)-methylamino]-3-methoxy-phenyl]-carbamothioyl]-benzamide; N-[2-amino-4-[(4-tert-butylbenzoyl)-carbamothioylamino]-phenyl]-2-chloro-benzamide hydrochloride; N-[(4-benzamido-2-chloro-phenyl)carbamothioyl]-4-tert-butyl-benzamide; 4-tert-butyl-N-[[4-[(2-chlorobenzene-carbothioyl)amino]-3-methoxy-phenyl]-carbamothioyl]benzamide; 4-(aminomethyl)-N-[4-[(4-tert-butylbenzoyl)-carbamothioylamino]-2-methoxy-phenyl]benzamide hydrochloride; N-[4-[(4-tert-butylbenzene-carboximidoyl) -carbamothioylamino]-2-methoxy-phenyl]-2-chloro-benzamide; 4-tert-butyl-N-[[4-[(2-chlorobenzene-carboximidoyl)amino]-3-methoxy-phenyl]-carbamothioyl]benzamide; 3-(aminomethyl)-N-[4-[(4-tert-butylbenzoyl)-carbamothioylamino]-2-methoxy-phenyl]benzamide hydrochloride; 2-amino-N-[4-[(4-tert-butylbenzoyl)-carbamothioylamino]-2-methoxy-phenyl]benzamide; N-[4-[(4-tert-butylbenzoyl)-carbamothioylamino]-2-methoxy-phenyl]pyridine-3-carboxamide; N-[4-[(4-tert-butylbenzoyl)-carbamothioylamino]-2-methoxy-phenyl]pyridine-4-carboxamide; N-[[4-[(4-aminobenzoyl)amino]-3-methoxy-phenyl]-carbamothioyl]-4-tert-butyl-benzamide hydrochloride; N-[4-[(4-tert-butylbenzoyl) -carbamothioyl-ethyl-amino]-2-methoxy-phenyl]-2-chloro-benzamide; N-[4-[(4-tert -butylbenzoyl)-carbamothioylamino]-2-methoxy-phenyl]-2-chloro-benzamide; and N-[(4-benzamidophenyl)-carbamothioyl]-4-tert-butyl-benzamide.

13. The method of claim 12 , wherein the compound of Formula II is N-[2-amino-4-[(4-tert-butylbenzoyl)-carbamothioylamino]-phenyl]-2-chloro-benzamide hydrochloride.

14. The method of claim 1 , wherein the mammal is a human.

15. The method of claim 1 , wherein said Bunyaviridae is selected from the group consisting of Rift Valley fever virus, La Crosse virus and Andes virus.

16. The method of claim 1 , wherein said Poxviridae is selected from the vaccinia virus and monkeypox virus.

17. The method of claim 1 , wherein said Arenaviridae is selected from the group consisting of Tacaribe virus and lymphocytic choriomeningitis virus.

18. The method of claim 1 , wherein said Picornaviridae is Encephalomyocarditis virus.

19. The method of claim 1 , wherein said Togaviridae is Sindbis virus.

20. The method of claim 1 , wherein said Flaviviridae is Dengue virus.

21. The method of claim 1 , wherein the viral infection is caused by a Filoviridae and said Filoviridae is Ebola virus.

22. The method of claim 1 , wherein said Orthomyxoviridae is an influenza virus.

23. The method of claim 22 , wherein said influenza virus is H1N1 virus.

24. The method of claim 1 , wherein said Retroviridae is a Human Immunodeficiency virus.

25. The method of claim 1 , which further comprises co-administration of at least one agent selected from the group consisting of antiviral agent, vaccine, and interferon.

26. The method of claim 25 , wherein said antiviral agent is Ribavirin.

27. The method of claim 25 , wherein said antiviral agent is cidofovir.

28. The method of claim 25 , wherein said interferon is pegylated.

29. The method of claim 1 , wherein said bacterial infection is caused by a bacteria family selected from the group consisting of Chlamydiaceae and Coxiellaceae.

30. The method of claim 29 , wherein said Chlamydiaceae is selected from the group consisting of Chlamydophila caviae and Chlamydophila muridarum .

31. The method of claim 29 , wherein said Coxiellaceae is Coxiella burnetti.

32. The method of claim 1 , wherein the compound of Formula II is N-[4-[(4-tert -butylbenzoyl)-carbamothioylamino]-2-methoxy-phenyl]-2-chloro-benzamide.

33. The method of claim 32 , wherein the viral infection is Ebola virus.

Assignments (3)
RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY AT REEL/FRAME NO. 40349/0219 Recorded Mar 13, 2020
From: CORTLAND CAPITAL MARKET SERVICES LLC
To: SIGA TECHNOLOGIES, INC.
Reel/Frame 052163/0014 →
SECURITY INTEREST Recorded Nov 16, 2016
From: SIGA TECHNOLOGIES, INC.
To: CORTLAND CAPITAL MARKET SERVICES, LLC
Reel/Frame 040349/0219 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 1, 2015
From: ALLEN, ROBERT D.; AMBERG, SEAN M.; DAI, DONGCHENG; BURGESON, JAMES R.; HRUBY, DENNIS E.
To: SIGA TECHNOLGIES, INC.
Reel/Frame 037180/0479 →