IP Library Granted Patent US 9,974,779
Granted Patent B2
US 9,974,779 · App. 15/276,208 · Granted May 22, 2018

Piperidine derivatives as human papilloma virus inhibitors

Inventors: Marta Blumenfeld (Paris, FR); Delphine Compere (Sceaux, FR); Jean-Michel Gauthier (Conflans-Sainte-Honorine, FR)
Assignee: VAXART, INC.
A61K31/445C07D295/135
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Quick Facts
Patent No.
US 9,974,779
App. No.
15/276,208
Granted
May 22, 2018
Kind
B2
Abstract

The present disclosure is directed to antiviral compounds directed against the papilloma virus, to pharmaceutical compositions containing them, to their preparation method and synthesis intermediates, as well as to their use for treating or preventing an infection by the papilloma virus. The present method thus provides an efficient way of treating patients that have lesions associated with an infection by the papilloma virus.

Claims (57)

1. A method for treating an infection by HPV 6 or HPV 11 papilloma virus comprising the administration to a patient in need thereof of an efficient quantity of a compound of formula (I):

as well as their stereoisomers,

wherein:

G 1 is a bond, methylene (—CH 2 —), or ethylene (—CH 2 CH 2 —),

G 2 is a

group, the N(R) moiety being bound to the nitrogen carrying the groups B and AG 1 , wherein:

R is H,

W is O and

G is methylene (—CH 2 —),

R 1 is O—CH 3 , and R 2 is H, Br, F or Cl, at the 5-position,

R 3 is C(═O)OH, wherein R 3 is at the 1 position,

A ring is a phenyl, further substituted at the 4-, or at the 3-, or at both the 3- and 4-positions,

and

B ring is a phenyl substituted at the 2- (or 6-) position with piperdin-1-yl; this phenyl is also substituted in the other of the 6- (or 2-) positions with a methyl, or is H,

as well as their pharmaceutically acceptable salts.

2. The method according to claim 1 , wherein the compound of formula (I) is selected from the group consisting of:

1) 5-bromo-2-methoxy-4-[N′-(4-methoxy-phenyl)-N′-2-piperidin-1-yl-phenyl)-hydrazinocarbonylmethyl]-benzoic acid hydrochloride

2) 5-bromo-2-methoxy-4-[N′-(2-piperidin-1-yl-phenyl)-N′-(4-trifluoromethoxy-phenyl)-hydrazinocarbonylmethyl]-benzoic acid hydrochloride

3) 5-bromo-2-methoxy-4-[N′-(3-methoxy-benzyl)-N′-(2-piperidin-1-yl-phenyl)-hydrazinocarbonylmethyl]-benzoic acid hydrochloride

4) 4-[N′-(4-benzyloxy-phenyl)-N′-(2-piperidin-1-yl-phenyl)-hydrazinocarbonylmethyl]-5-bromo-2-methoxy-benzoic acid hydrochloride

5) 5-bromo-4-{N′-[4-(4-fluoro-phenoxy)-phenyl]-N′-(2-piperidin-1-yl-phenyl)-hydrazinocarbonylmethyl}-2-methoxy-benzoic acid hydrochloride

6) 5-bromo-2-methoxy-4-{N′-[2-(4-methoxy-phenyl)-ethyl]-N′-2-piperidin-1-yl-phenyl)-hydrazinocarbonylmethyl}-benzoic acid hydrochloride

7) 5-bromo-2-methoxy-4-[N′-(4-methoxy-phenyl)-N′-(2-methyl-6-piperidin-1-yl-phenyl)-hydrazinocarbonyl-methyl]-benzoic acid hydrochloride

7a) Methyl 5-bromo-2-methoxy-4-[N′-(4-methoxy-phenyl)-N′-(2-methyl-6-piperidin-1-yl-phenyl)-hydrazinocarbonyl-methyl]-benzoate

8) 5-bromo-2-methoxy-4-[N′-(4-methoxy-benzyl)-N′-(2-piperidin-1-yl-phenyl)-hydrazinocarbonylmethyl]-benzoic acid hydrochloride

9) 5-bromo-4-[N′-(4-cyclohexyl-phenyl)-N′-(2-piperidin-1-yl-phenyl)-hydrazinocarbonylmethyl]-2-methoxy-benzoic acid hydrochloride

10) 5-bromo-2-methoxy-4-[N′-(2-methyl-6-piperidin-1-yl-phenyl)-N′-(4-trifluoromethoxy-phenyl)-hydrazino-carbonylmethyl]-benzoic acid hydrochloride

11) 5-bromo-2-methoxy-4-[N′-(4′-methoxy-biphenyl-4-yl)-N′-(2-piperidin-1-yl-phenyl)-hydrazinocarbonylmethyl]-benzoic acid hydrochloride

12) 5-bromo-4-[N′-(4-cyclohexyloxy-phenyl)-N′-(2-piperidin-1-yl-phenyl)-hydrazinocarbonylmethyl]-2-methoxy-benzoic acid hydrochloride

13) 5-bromo-2-methoxy-4-[N′-(4-phenoxy-phenyl)-N′-(2-piperidin-1-yl-phenyl)-hydrazinocarbonylmethyl]-benzoic acid hydrochloride

14) 5-bromo-4-{N′-[4-(4-chloro-phenoxy)-phenyl]-N′-(2-piperidin-1-yl-phenyl)-hydrazinocarbonylmethyl}-2-methoxy-benzoic acid hydrochloride

15) 4-{N′-[4-(4-fluoro-phenoxy)-phenyl]-N′-(2-methyl-6-piperidin-1-yl-phenyl)-hydrazinocarbonylmethyl}-2-methoxy-benzoic acid hydrochloride

16) 5-bromo-4-{N′-[4-(4-fluoro-phenoxy)-phenyl]-N′-(2-methyl-6-piperidin-1-yl-phenyl)-hydrazino-carbonyl-methyl}-2-methoxy-benzoic acid hydrochloride

16a) Methyl 5-bromo-4-{N′-[4-(4-fluoro-phenoxy)-phenyl]-N′-(2-methyl-6-piperidin-1-yl-phenyl)-hydrazino-carbonyl-methyl}-2-methoxy-benzoate

17) 4-[N′-(4-benzyl-phenyl)-N′-(2-piperidin-1-yl-phenyl)-hydrazinocarbonylmethyl]-5-bromo-2-methoxy-benzoic acid hydrochloride

18) 4-[N′-(4-bromo-phenyl)-N′-(2-piperidin-1-yl-phenyl)-hydrazinocarbonylmethyl]-5-chloro-2-methoxy-benzoic acid hydrochloride

19) 4-[N′-(3′-acetyl-biphenyl-4-yl)-N′-(2-piperidin-1-yl-phenyl)-hydrazinocarbonylmethyl]-5-chloro-2-methoxy-benzoic acid hydrochloride

20) 4-[N′-(4′-acetyl-biphenyl-4-yl)-N′-(2-piperidin-1-yl-phenyl)-hydrazinocarbonylmethyl]-5-chloro-2-methoxy-benzoic acid hydrochloride

21) 5-bromo-2-methoxy-4-[N′-(3-phenoxy)-phenyl]-N′-(2 piperidin-1-yl-phenyl)-hydrazinocarbonylmethyl]-benzoic acid hydrochloride

22) 5-bromo-2-methoxy-4-[N′-(4-phenylsulfanyl)-phenyl]-N′-(2-piperidin-1-yl-phenyl)-hydrazinocarbonylmethyl]-benzoic acid hydrochloride

23) 4-[N′-(4-benzenesulfonyl-phenyl)-N′-(2-piperidin-1-yl-phenyl)-hydrazinocarbonylmethyl]-5-bromo-2-methoxy -benzoic acid hydrochloride

24) 4-[N′-(4-benzenesulfinyl-phenyl)-N′-(2-piperidin-1-yl-phenyl)-hydrazinocarbonylmethyl]-5-bromo-2-methoxy-benzoic acid hydrochloride

25) 2-methoxy-4-{(E)-2-[N′-(4-methoxy-phenyl)-N′-(2-methyl-6-piperidin-1-yl-phenyl)-hydrazinocarbonyl]-vinyl}-benzoic acid hydrochloride

26) 5-bromo-2-methoxy-4-{(E)-2-[N′-(4-methoxy-phenyl)-N′-(2-methyl-6-piperidin-1-yl-phenyl)-hydrazinocarbonyl]-vinyl}-benzoic acid hydrochloride

27) 4-[N′-(4-benzyl-phenyl)-N′-(2-methyl-6-piperidin-1-yl-phenyl)-hydrainocarbonylmethyl]-5-bromo-2-methoxy-benzoic acid hydrochloride

28) 5-bromo-2-methoxy-4-[N′-(4′-methoxy-biphenyl-4-yl)-N′-(2-methyl-6-piperidin-1-yl-phenyl)-hydrazino-carbonyl-methyl]-benzoic acid hydrochloride

29) 4-[N′-(acetylamino-methyl)-phenyl]-N′-(2-methyl-6-piperidin-1-yl-phenyl)-hydrazinocarbonylmethyl]-5-bromo-2-methoxy-benzoic acid hydrochloride

30) 4-[N′-(4-benzoyl)-phenyl]-N′-(2-piperidin-1-yl-phenyl)-hydrazinocarbonylmethyl]-5-bromo-2-methoxy-benzoic acid hydrochloride

31) 5-bromo-4-[N′-(4-cyano-phenyl)-N′-(2-methyl-6-piperidin-1-yl-phenyl)-hydrazinocarbonylmethyl]-2-methoxy-benzoic acid hydrochloride

32) 4-[N′-(4′-acetyl-biphenyl-4-yl)-N′-(2-methyl-6-piperidin-1-yl-phenyl)-hydrazinocarbonylmethyl]-5-bromo-2-methoxy-benzoic acid hydrochloride; and

33) 5-bromo-2-methoxy-4-[N′-(4′-methoxy-2-methyl-biphenyl-4-yl)-N′-(2-methyl-6-piperidin-1-yl-phenyl)-hydrazinocarbonylmethyl]-benzoic acid hydrochloride.

3. The method according to claim 1 , wherein the patient has a lesion associated with an infection by the papilloma virus.

4. The method according to claim 1 , wherein the patient has an ano-genital wart, a laryngeal, conjunctive or buccal papilloma, or an epithelial lesion.

5. The method according to claim 4 , wherein said ano-genital wart is an acuminated condyloma or a plane condyloma.

6. The method according to claim 1 , wherein said epithelial lesion is selected from the group consisting of a recurrent respiratory papillomatosis, a low grade or high grade intra-epithelial neoplasia, a bowenoid papulosis, a wart, an epidermodysplasia verruciformis, a carcinoma, and a lesion associated with the papilloma virus.

7. The method according to claim 6 , wherein said wart is selected from the group consisting of a verruca vulgaris, a verruca plantaris, a myrmecia wart, a surface wart and a verruca plana.

8. The method according to claim 6 , wherein said carcinoma is an ano-genital carcinoma.

Assignments (2)
CHANGE OF NAME Recorded Apr 19, 2018
From: AVIRAGEN THERAPEUTICS, INC.
To: VAXART, INC.
Reel/Frame 045590/0309 →
CHANGE OF NAME Recorded Dec 19, 2017
From: BIOTA PHARMACEUTICALS, INC.
To: AVIRAGEN THERAPEUTICS, INC.
Reel/Frame 045756/0563 →
Priority Claims (1)
FR 06 04496 · May 19, 2006 · national
Continuity (4)
Continuation 13466530 · May 8, 2012
Division 12300998
Related Publication 20170079968A1 · Mar 23, 2017
Related Publication 20180021318A9 · Jan 25, 2018