IP Library Granted Patent US 7,622,593
Granted Patent B2
US 7,622,593 · App. 11/823,086 · Granted Nov 24, 2009

Human protein tyrosine phosphatase inhibitors and methods of use

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Quick Facts
Patent No.
US 7,622,593
App. No.
11/823,086
Granted
Nov 24, 2009
Kind
B2
Abstract

The present disclosure relates to compounds effective as human protein tyrosine phosphatase beta (HPTP-β) inhibitors thereby regulating angiogenesis. The present disclosure further relates to compositions comprising said human protein tyrosine phosphatase beta (HPTP-β) inhibitors, and to methods for regulating angiogenesis.

Claims (259)

1. A compound of the formula:

wherein R is a substituted or unsubstituted thiazolyl unit having the formula:

R 4 and R 5 are each independently chosen from:

i) hydrogen;

ii) substituted or unsubstituted C 1 -C 6 linear or branched alkyl, or C 3 -C 6 cyclic alkyl;

iii) substituted or unsubstituted phenyl; and

iv) substituted or unsubstituted heteroaryl; or

R 4 and R 5 can be taken together to form a saturated or unsaturated ring having from 5 to 7 atoms;

said substitutions are independently chosen from one or more C 1 -C 6 linear- or branched alkyl, or C 3 -C 6 cyclic alkyl, halogen, hydroxy, OCH 3 , CF 3 , N(R 12 ) 2 or cyano units;

R 12 is independently hydrogen or C 1 -C 4 linear or branched alkyl;

R 6 is a unit chosen from:

i) hydrogen;

ii) substituted or unsubstituted C 1 -C 6 linear or branched alkyl, or C 3 -C 6 cyclic alkyl;

iii) substituted or unsubstituted phenyl; and

iv) substituted or unsubstituted heteroaryl;

R 1 is chosen from:

i) hydrogen;

ii) C 1 -C 6 linear or branched alkyl;

iii) substituted or unsubstituted phenyl; or

iv) substituted or unsubstituted benzyl;

R 2 is chosen from:

i) C 1 -C 6 linear or branched alkyl; or

ii) C 1 -C 6 linear or branched alkoxy;

R 3 is hydrogen or C 1 -C 4 linear or branched alkyl;

or a pharmaceutically acceptable salt thereof.

2. A compound according to claim 1 , wherein R has the formula:

3. A compound according to claim 2 , wherein R 4 and R 5 are each hydrogen.

4. A compound according to claim 2 , wherein R 5 is hydrogen and R 4 is substituted or unsubstituted C 1 -C 6 linear or branched alkyl, or C 3 -C 6 cyclic alkyl.

5. A compound according to claim 4 , wherein R 4 is chosen from methyl, ethyl, n-propyl, iso-propyl, n-butyl, sec-butyl, iso-butyl, tert-butyl, n-pentyl, 1-methylbutyl, 2-methylbutyl, 3-methylbutyl, cyclopropyl, n-hexyl, and cyclohexyl.

6. A compound according to claim 4 , wherein R 4 is chosen from units having the formulae —CH 2 F, —CHF 2 , —CF 3 , —CH 2 CF 3 , —CH 2 CH 2 CF 3 , —CH 2 Cl, —CH 2 OH, —CH 2 OCH 3 , —CH 2 CH 2 OH, —CH 2 CH 2 OCH 3 , —CH 2 NH 2 , —CH 2 NHCH 3 , —CH 2 N(CH 3 ) 2 , and —CH 2 NH(CH 2 CH 3 ).

7. A compound according to claim 4 , wherein R 4 is 2,2-difluorocyclopropyl, 2-methoxycyclohexyl, or 4-chlorocyclohexyl.

8. A compound according to claim 2 , wherein R 5 is hydrogen and R 4 is substituted or unsubstituted phenyl.

9. A compound according to claim 8 , wherein R 4 is chosen from phenyl, 3,4-dimethylphenyl, 4-tert-butylphenyl, 4-cyclopropylphenyl, 4-diethylaminophenyl, 4-(trifluoromethyl)phenyl, 4-methoxyphenyl, 3-chlorophenyl, 4-chlorophenyl, and 3,4-dichlorophenyl.

10. A compound according to claim 2 , wherein R 5 is hydrogen and R 4 is substituted or unsubstituted heteroaryl.

11. A compound according to claim 10 , wherein R 4 is a substituted or unsubstituted heteroaryl unit, said heteroaryl unit chosen from 1,2,3,4-tetrazol-1-yl, 1,2,3,4-tetrazol-5-yl, [1,2,3]triazol-4-yl, [1,2,3]triazol-5-yl, [1,2,4]triazol-4-yl, [1,2,4]triazol-5-yl, imidazol-2-yl, imidazol-4-yl, pyrrol-2-yl, pyrrol-3-yl, oxazol-2-yl, oxazol-4-yl, oxazol-5-yl, isoxazol-3-yl, isoxazol-4-yl, isoxazol-5-yl, [1,2,4]oxadiazol-3-yl, [1,2,4]oxadiazol-5-yl, [1,3,4]oxadiazol-2-yl, furan-2-yl, furan-3-yl, thiophene-2-yl, thiophene-3-yl, isothiazol-3-yl, isothiazol-4-yl, isothiazol-5-yl, thiazol-2-yl, thiazol-4-yl, thiazol-5-yl, [1,2,4]thiadiazol-3-yl, [1,2,4]thiadiazol-5-yl, and [1,3,4]thiadiazol-2-yl.

12. A compound according to claim 11 , wherein R 4 is chosen from furan-2-yl, thiophene-2-yl, 5-chlorothiophene-2-yl, and 5-methylthiophene-2-yl.

13. A compound according to claim 1 , wherein R is a unit wherein R 4 and R 5 are taken together to form a saturated or unsaturated ring having from 5 to 7 atoms.

14. A compound according to claim 13 , wherein R is 5,6-dihydro-4H-cyclopenta[d]thiazol-2-yl or 4,5,6,7-tetrahydrobenzo[d]thiazol-2-yl.

15. A compound according to claim 1 , wherein R units have the formula

16. A compound according to claim 15 , wherein R 6 is hydrogen.

17. A compound according to claim 15 , wherein R 6 is chosen from methyl, ethyl, n-propyl, iso-propyl, n-butyl, sec-butyl, iso-butyl, and tert-butyl.

18. A compound according to claim 15 , wherein R 6 is substituted or unsubstituted phenyl.

19. A compound according to claim 18 , wherein R 6 is chosen from include phenyl, 2-fluorophenyl, 2-chlorophenyl, 2-methylphenyl, 2-methoxyphenyl, 3-fluorophenyl, 3-chlorophenyl, 3-methylphenyl, 3-methoxyphenyl, 4-fluorophenyl, 4-chlorophenyl, 4-methylphenyl, and 4-methoxyphenyl.

20. A compound according to claim 15 , wherein R 6 is a substituted or unsubstituted heteroaryl unit, said heteroaryl unit chosen from 1,2,3,4-tetrazol-1-yl, 1,2,3,4-tetrazol-5-yl, [1,2,3]triazol-4-yl, [1,2,3]triazol-5-yl, [1,2,4]triazol-4-yl, [1,2,4]triazol-5-yl, imidazol-2-yl, imidazol-4-yl, pyrrol-2-yl, pyrrol-3-yl, oxazol-2-yl, oxazol-4-yl, oxazol-5-yl, isoxazol-3-yl, isoxazol-4-yl, isoxazol-5-yl, [1,2,4]oxadiazol-3-yl, [1,2,4]oxadiazol-5-yl, [1,3,4]oxadiazol-2-yl, furan-2-yl, furan-3-yl, thiophene-2-yl, thiophene-3-yl, isothiazol-3-yl, isothiazol-4-yl, isothiazol-5-yl, thiazol-2-yl, thiazol-4-yl, thiazol-5-yl, [1,2,4]thiadiazol-3-yl, [1,2,4]thiadiazol-5-yl, and [1,3,4]thiadiazol-2-yl.

21. A compound according to claim 20 , wherein R 6 is chosen from thiophene-2-yl, thiophene-3-yl, thiazol-2-yl, thiazol-4-yl, thiazol-5-yl, 2,5-dimethylthiazol-4-yl, 2,4-dimethylthiazol-5-yl, 4-ethylthiazol-2-yl, oxazol-2-yl, oxazol-4-yl, oxazol-5-yl, and 3-methyl-1,2,4-oxadiazol-5-yl.

22. A compound according to claim 15 , wherein R 6 has the formula:

R 7 is C 1 -C 4 substituted or unsubstituted alkyl or substituted or unsubstituted phenyl.

23. A compound according to claim 22 , wherein R 6 is 4-chlorobenzenesulfonylmethyl or tert-butylsulfonylmethyl.

24. A compound according to claim 1 , wherein R 1 is hydrogen.

25. A compound according to claim 1 , wherein R 1 is substituted or unsubstituted phenyl or benzyl.

26. A compound according to claim 25 , wherein R 1 is benzyl.

27. A compound according to claim 1 , wherein R 1 is C 1 -C 6 linear or branched alkyl.

28. A compound according to claim 27 , wherein R 1 is iso-propyl.

29. A compound according to claim 1 , wherein R 2 is a C 1 -C 6 linear or branched alkoxy unit having the formula:

—OR 8

wherein R 8 is a C 1 -C 6 linear or branched alkyl unit chosen from methyl, ethyl, n-propyl, iso-propyl, n-butyl, sec-butyl, iso-butyl, tert-butyl, n-pentyl, or n-hexyl.

30. A compound according to claim 29 , wherein R 8 is methyl, ethyl, or tert-butyl.

31. A compound according to claim 1 , wherein R 2 is a C 1 -C 6 linear or branched alkyl unit.

32. A compound according to claim 1 , wherein R 3 is hydrogen or methyl.

33. A compound according to claim 32 , wherein R 3 is hydrogen.

34. A compound of the formula:

wherein R 2 is chosen from:

i) C 1 -C 6 linear or branched alkyl; or

ii) C 1 -C 6 linear or branched alkoxy;

R 4 and R 5 are each independently chosen from:

i) hydrogen;

ii) substituted or unsubstituted C 1 -C 6 linear or branched alkyl, or C 3 -C 6 cyclic alkyl;

iii) substituted or unsubstituted phenyl; and

iv) substituted or unsubstituted heteroaryl; or

R 4 and R 5 can be taken together to form a saturated or unsaturated ring having from 5 to 7 atoms.

35. A compound of the formula:

wherein R 2 is chosen from:

i) C 1 -C 6 linear or branched alkyl; or

ii) C 1 -C 6 linear or branched alkoxy;

R 6 is chosen from:

i) hydrogen;

ii) substituted or unsubstituted C 1 -C 6 linear or branched alkyl, or C 3 -C 6 cyclic alkyl;

iii) substituted or unsubstituted phenyl; and

iv) substituted or unsubstituted heteroaryl.

36. A compound of the formula:

wherein R 2 is chosen from:

i) C 1 -C 6 linear or branched alkyl; or

ii) C 1 -C 6 linear or branched alkoxy;

R 4 and R 5 are each independently chosen from:

i) hydrogen;

ii) substituted or unsubstituted C 1 -C 6 linear or branched alkyl, or C 3 -C 6 cyclic alkyl;

iii) substituted or unsubstituted phenyl; and

iv) substituted or unsubstituted heteroaryl; or

R 4 and R 5 can be taken together to form a saturated or unsaturated ring having from 5 to 7 atoms.

37. A compound of the formula:

wherein R 2 is chosen from:

i) C 1 -C 6 linear or branched alkyl; or

ii) C 1 -C 6 linear or branched alkoxy;

R 6 is chosen from:

i) hydrogen;

ii) substituted or unsubstituted C 1 -C 6 linear or branched alkyl, or C 3 -C 6 cyclic alkyl;

iii) substituted or unsubstituted phenyl; and

iv) substituted or unsubstituted heteroaryl.

38. A compound of the formula:

wherein R 2 is chosen from:

i) C 1 -C 6 linear or branched alkyl; or

ii) C 1 -C 6 linear or branched alkoxy;

R 4 and R 5 are each independently chosen from:

i) hydrogen;

ii) substituted or unsubstituted C 1 -C 6 linear or branched alkyl, or C 3 -C 6 cyclic alkyl;

iii) substituted or unsubstituted phenyl; and

iv) substituted or unsubstituted heteroaryl; or

R 4 and R 5 can be taken together to form a saturated or unsaturated ring having from 5 to 7 atoms.

39. A compound of the formula:

wherein R 2 is chosen from:

i) C 1 -C 6 linear or branched alkyl; or

ii) C 1 -C 6 linear or branched alkoxy;

R 6 is chosen from:

i) hydrogen;

ii) substituted or unsubstituted C 1 -C 6 linear or branched alkyl, or C 3 -C 6 cyclic alkyl;

iii) substituted or unsubstituted phenyl; and

iv) substituted or unsubstituted heteroaryl;

or a pharmaceutically acceptable salt thereof.

40. A compound chosen from;

4-{(S)-2-[(S)-2-(tert-Butoxycarbonylamino)-3-phenylpropanamido]-2-(4-ethylthiazol-2-yl)ethyl}phenylsulfamic acid;

4-{(S)-2-[(R)-2-(tert-Butoxycarbonylamino)-3-phenylpropanamido]-2-(4-ethylthiazol-2-yl)ethyl}phenylsulfamic acid;

{1-[1-(5-Ethylthiazol-2-yl)-(S)-2-(4-sulfoaminophenyl)ethylcarbamoyl]-(S)-2-phenylethyl}methyl carbamic acid tert-butyl ester;

{(S)-2-Phenyl-1-[1-(2-phenylthiazol-2-yl)-(S)-2-(4-sulfoaminophenyl)ethyl-carbamoyl]ethyl}carbamic acid tert-butyl ester

4-{(S)-2-(4-Ethylthiazol-2-yl)-2-[(S)-2-(methoxycarbonylamino)-3-phenylpropanamido]ethyl}phenylsulfamic acid;

4-{(S)-2-[(S)-2-(Methoxycarbonylamino)-3-phenylpropanamido]-2-(thiazol-2-yl)ethyl}phenylsulfamic acid;

4-{(S)-2-[(S)-2-(Methoxycarbonylamino)-3-phenylpropanamido]-2-(4-methylthiazol-2-yl)ethyl}phenylsulfamic acid;

4-{(S)-2-[(S)-2-(Methoxycarbonylamino)-3-phenylpropanamido]-2-(4-propylthiazol-2-yl)ethyl}phenylsulfamic acid;

4-{(S)-2-(4-tert-Butylthiazol-2-yl)-2-[(S)-2-(methoxycarbonylamino)-3-phenylpropanamido]ethyl}phenylsulfamic acid;

4-{(S)-2-(4-Cyclopropylthiazol-2-yl)-2-[(S)-2-(methoxycarbonylamino)-3-phenylpropanamido]ethyl}phenylsulfamic acid;

4-{(S)-2-(4-Cyclohexylthiazol-2-yl)-2-[(S)-2-(methoxycarbonylamino)-3-phenyl-propanamido]ethyl}phenylsulfamic acid;

4-{(S)-2-(4,5-Dimethylthiazol-2-yl)-2-[(S)-2-(methoxycarbonylamino)-3-phenyl-propanamido]ethyl}phenylsulfamic acid;

4-{(S)-2-(4-Ethyl-5-methylthiazol-2-yl)-2-[(S)-2-(methoxycarbonylamino)-3-phenyl-propanamido]ethyl}phenylsulfamic acid;

4-{(S)-2-[(S)-2-(Methoxycarbonylamino)-3-phenylpropanamido]-2-[4-(2,2,2-trifluoroethyl)thiazol-2-yl]ethyl}phenylsulfamic acid;

4-{(S)-2-[(S)-2-(Methoxycarbonylamino)-3-phenylpropanamido)-2-[4-(3,3,3-trifluoropropyl)thiazol-2-yl]ethyl}phenylsulfamic acid;

4-{(S)-2-[4-(2,2-Difluorocyclopropyl)thiazol-2-yl]-2-[(S)-2-(methoxycarbonylamino)-3-phenylpropanamido]ethyl}phenylsulfamic acid;

4-{(S)-2-[(S)-2-(Methoxycarbonylamino)-3-phenylpropanamido]-2-[4-(methoxy-methyl)thiazol-2-yl]ethyl}phenylsulfamic acid;

4-{(S)-2-(4-(Ethoxycarbonyl)thiazol-2-yl)-2-[(S)-2-(methoxycarbonylamino)-3-phenylpropanamido]ethyl}phenylsulfamic acid;

4-{(S)-2-[(S)-2-(Methoxycarbonylamino)-3-phenylpropanamido]-2-(5-phenylthiazol-2-yl)ethyl}phenylsulfamic acid;

4-{(S)-2-(4-Ethyl-5-phenylthiazol-2-yl)-2-[(S)-2-(methoxycarbonylamino)-3-phenyl-propanamido]ethyl}phenylsulfamic acid;

4-{(S)-2-[4-(3,4-Dimethylphenyl)thiazol-2-yl]-2-[(S)-2-(methoxycarbonylamino)-3-phenylpropanamido]ethyl}phenylsulfamic acid;

4-{(S)-2-[4-(4-Chlorophenyl)thiazol-2-yl]-2-[(S)-2-(methoxycarbonylamino)-3-phenylpropanamido]ethyl}phenylsulfamic acid;

4-{(S)-2-[(S)-2-(Methoxycarbonylamino)-3-phenylpropanamido]-2-[4-(thiophen-2-yl)thiazol-2-yl]ethyl}phenylsulfamic acid;

4-{(S)-2-[(S)-2-(Methoxycarbonylamino)-3-phenylpropanamido]-2-[4-(thiophen-3-yl)thiazol-2-yl]ethyl}phenylsulfamic acid;

4-{(S)-2-(5,6-Dihydro-4H-cyclopenta[d]thiazol-2-yl)-2-[(S)-2-(methoxy-carbonylamino)-3-phenylpropanamido]ethyl}phenylsulfamic acid;

4-{(S)-2-[(S)-2-(Methoxycarbonylamino)-3-phenylpropanamido]-2-(4,5,6,7-tetrahydrobenzo[d]thiazol-2-yl)ethyl}phenylsulfamic acid;

4-{(S)-2-[4-(5-Chlorothiophen-2-yl)thiazol-2-yl]-2-[(S)-2-(methoxycarbonylamino)-3-phenylpropanamido]ethyl}phenylsulfamic acid;

4-{(S)-2-[(S)-2-(Ethoxycarbonylamino)-3-phenylpropanamido]-2-(4-ethylthiazol-2-yl)ethyl}phenylsulfamic acid;

4-{(S)-2-[(S)-2-(Methoxycarbonylamino)-3-phenylpropanamido]-2-(2-ethylthiazol-4-yl)ethyl}phenylsulfamic acid;

4-{(S)-2-[(S)-2-(Methoxycarbonylamino)-3-phenylpropanamido]-2-(2-methylthiazol-4-yl)ethyl}phenylsulfamic acid;

4-{(S)-2-(2-Ethylthiazole-4-yl)-2-[(S)-2-(methoxycarbonylamino)-3-phenylpropan-amido]ethyl}phenylsulfamic acid;

4-{(S)-2-(2-Isopropylthiazol-4-yl)-2-[(S)-2-(methoxycarbonylamino)-3-phenylpropan-amido]ethyl}phenylsulfamic acid;

4-{(S)-2-(2-Cyclopropylthiazol-4-yl)-2-[(S)-2-(methoxycarbonylamino)-3-phenylpropanamido]ethyl}phenylsulfamic acid;

4-{(S)-2-{2-[(4-Chlorophenylsulfonyl)methyl]thiazol-4-yl}-2-[(S)-2-(methoxy-carbonylamino)-3-phenylpropanamido]ethyl}phenylsulfamic acid;

4-{(S)-2-[2-(tert-Butylsulfonylmethyl)thiazol-4-yl]-2-[(S)-2-(methoxycarbonylamino)-3-phenylpropanamido]ethyl}phenylsulfamic acid;

4-{(S)-2-[(S)-2-(Methoxycarbonylamino)-3-phenylpropionamido]-2-(2-phenylthiazole-4-yl)ethyl}phenylsulfamic acid;

4-{(S)-2-[(S)-2-(Methoxycarbonylamino)-3-phenylpropanamido]-2-[2-(thiophen-2-yl)thiazol-4-yl]ethyl}phenylsulfamic acid;

4-{(S)-2-[2-(3-Chlorothiophen-2-yl)thiazol-4-yl]-2-[(S)-2-(methoxycarbonylamino)-3-phenylpropanamido]ethyl}phenylsulfamic acid;

4-{(S)-2-[(S)-2-(Methoxycarbonylamino)-3-phenylpropanamido]-2-[2-(3-methylthiophen-2-yl)thiazol-4-yl]ethyl}phenylsulfamic acid;

4-{[(S)-2-(2-(Furan-2-yl)thiazol-4-yl]-2-[(S)-2-(methoxycarbonylamino)-3-phenylpropanamido]ethyl}phenylsulfamic acid;

4-{(S)-2-[(S)-2-(Methoxycarbonylamino)-3-phenylpropanamido]-2-[2-(2-methylthiazole-4-yl)thiazole-4-yl]ethyl}phenylsulfamic acid;

4-{(S)-2-[(S)-2-(Methoxycarbonylamino)-3-phenylpropanamido]-2-(2-pyrazine-2-yl)thiazole-4-yl}phenylsulfamic acid; and

4-{(S)-2-[(S)-2-(Methoxycarbonylamino)-3-phenylpropanamido]-2-[2-(6-methylpyridin-3-yl)thiazol-4-yl]ethyl}phenylsulfamic acid.

41. A compound chosen from:

4-[(S)-2-((S)-2-Acetamido-3-phenylpropanamido)-2-(4-ethylthiazol-2-yl)ethyl]phenylsulfamic acid;

4-[(S)-2-((S)-2-Acetamido-3-phenylpropanamido)-2-(4-tert-butylthiazol-2-yl)ethyl]phenylsulfamic acid;

4-{(S)-2-((S)-2-Acetamido-3-phenylpropanamido)-2-[4-(thiophen-3-yl)thiazol-2-yl]ethyl}phenylsulfamic acid;

4-{(S)-2-[(S)-2-(tert-Butoxycarbonylamino)-3-methylbutanamido]-2-(4-ethylthiazol-2-yl)ethyl}phenylsulfamic acid;

(S)-4-{2-[2-(tert-Butoxycarbonylamino)acetamido]-2-(4-ethylthiazol-2-yl)ethyl}phenyl-sulfamic acid;

(S)-4-{2-(4-Ethylthiazol-2-yl)-2-[2-(methoxycarbonylamino)acetamido]ethyl}phenyl-sulfamic acid;

4-{(S)-2-(4-Ethylthiazol-2-yl)-2-[(S)-2-(methoxycarbonylamino)-3-methylbutanamido]-ethyl}phenylsulfamic acid;

4-{(S)-2-[(S)-2-(tert-Butoxycarbonylamino)-4-methylpentanamido]-2-(4-ethylthiazol-2-yl)ethyl}phenylsulfamic acid;

4-{(S)-2-(4-Ethylthiazol-2-yl)-2-[(S)-2-(methoxycarbonylamino)-4-methylpentan-amido]ethyl}phenylsulfamic acid;

4-{(S)-2-[(S)-2-(tert-Butoxycarbonylamino)-4-methylpentanamido]-2-[2-(thiophen-2-yl)thiazol-4-yl]ethyl}phenylsulfamic acid; and

4-{(S)-2-[(S)-2-(Methoxycarbonylamino)-4-methylpentanamido]-2-[2-(thiophen-2-yl)thiazol-4-yl]ethyl}phenylsulfamic acid.

42. A compound of the formula:

wherein R is a substituted or unsubstituted thiazolyl unit having the formula:

R 4 and R 5 are each independently chosen from:

i) hydrogen;

ii) substituted or unsubstituted C 1 -C 6 linear or branched alkyl, or C 3 -C 6 cyclic alkyl;

iii) substituted or unsubstituted phenyl; and

iv) substituted or unsubstituted heteroaryl; or

R 4 and R 5 can be taken together to form a saturated or unsaturated ring having from 5 to 7 atoms;

said substitutions are independently chosen from one or more C 1 -C 6 linear or branched alkyl, or C 3 -C 6 cyclic alkyl, halogen, hydroxyl, or cyano units;

R 6 is a unit chosen from:

i) hydrogen;

ii) substituted or unsubstituted C 1 -C 6 linear or branched alkyl, or C 3 -C 6 cyclic alkyl;

iii) substituted or unsubstituted phenyl; and

iv) substituted or unsubstituted heteroaryl;

R 2 is chosen from:

i) C 1 -C 6 linear or branched alkyl; or

ii) C 1 -C 6 linear or branched alkoxy.

43. A compound chosen from:

[1-(S)-(Phenylthiazol-2-yl)-2-(4-sulfoaminophenyl)ethyl]-carbamic acid tert-butyl ester;

(S)-4-(2-(4-Methylthiazol-2-yl)-2-pivalamidoethyl)phenylsulfamic acid;

(S)-4-(2-(4-Ethylthiazole-2-yl)-2-pivalamideoethyl)phenylsulfamic acid;

(S)—N-(1-(4-Hydroxymethyl)thiazole-2-yl)-2pivalamidoethyl)phenylsulfamic acid;

(S)-4-(2-(4-Ethoxycarbonyl)thiazole-2-yl)-2-pivalamideoethyl)phenylsulfamic acid;

(S)-4-(2-(4-Phenylthiazole-2-yl)-2-pivalamidoethyl)phenylsulfamic acid;

4-((S)-2-(4-(3-Methoxyphenyl)thiazol-2-yl)-2-pivalamidoethyl)phenylsulfamic acid;

N—((S)-1-(4-(4-Chlorophenyl)thiazol-2-yl)-2-(4-nitrophenyl)ethyl)pivalamide;

4-((S)-2-(4-(3-methoxyphenyl)thiazol-2-yl)-2-pivalamidoethyl)phenylsulfamic acid;

4-((S)-2-(4-(2,4-Dimethoxyphenyl)thiazol-2-yl)-2-pivalamidoethyl)phenyl-sulfamic acid;

(S)-4-(2-(4-benzylthiazol-2-yl)-2-pivalamidoethyl)phenylsulfamic acid;

(S)-4-(2-Pivalamido-2-(4-(thiophen-2-ylmethyl)thiazol-2-yl)ethyl)phenylsulfamic acid;

(S)-4-(2-(4-(3-Methoxybenzyl)thiazol-2-yl)-2-pivalamidoethyl)phenylsulfamic acid;

4-((S)-2-(4-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)thiazol-2-yl)-2-pivalamidoethyl)phenylsulfamic acid;

(S)-4-(2-(5-Methyl-4-phenylthiazol-2-yl)-2-pivalamidoethyl)phenylsulfamic acid;

(S)-4-(2-(4-(4-Biphenyl)thiazol-2-yl)-2-pivalamidoethyl)phenylsulfamic acid;

(S)-4-(2-(tert-Butoxycarbonylamino)-2-(4-propylthiazol-2-yl)ethyl)-phenyl sulfamic acid;

(S)-4-(2-(tert-Butoxycarbonylamino)-2-(4-tert-butylthiazol-2-yl)ethyl)-phenyl sulfamic acid; and

(S)-4-(2-(tert-Butoxycarbonylamino)-2-(4-(methoxymethyl)thiazol-2-yl)ethyl)-phenyl sulfamic acid.

44. A pharmaceutical composition comprising:

A) one or more compounds of the formula:

wherein R is a substituted or unsubstituted thiazolyl unit having the formula:

R 4 and R 5 are each independently chosen from:

i) hydrogen;

ii) substituted or unsubstituted C 1 -C 6 linear or branched alkyl, or C 3 -C 6 cyclic alkyl;

iii) substituted or unsubstituted phenyl; and

iv) substituted or unsubstituted heteroaryl; or

R 4 and R 5 can be taken together to form a saturated or unsaturated ring having from 5 to 7 atoms;

said substitutions are independently chosen from one or more C 1 -C 6 linear, or branched alkyl, or C 3 -C 6 cyclic alkyl, halogen, hydroxyl, or cyano units;

R 6 is a unit chosen from:

i) hydrogen;

ii) substituted or unsubstituted C 1 -C 6 linear or branched alkyl, or C 3 -C 6 cyclic alkyl;

iii) substituted or unsubstituted phenyl; and

iv) substituted or unsubstituted heteroaryl;

R 1 is chosen from:

i) hydrogen;

ii) C 1 -C 6 linear or branched alkyl;

iii) substituted or unsubstituted phenyl; or

iv) substituted or unsubstituted benzyl;

R 2 is chosen from:

i) C 1 -C 6 linear or branched alkyl; or

ii) C 1 -C 6 linear or branched alkoxy;

R 3 is hydrogen or C 1 -C 4 linear or branched alkyl;

or a pharmaceutically acceptable salt thereof, and

B) one or more excipients or carriers.

45. A compound of the formula:

wherein R is a substituted or unsubstituted thiazolyl unit having the formula:

R 2 is chosen from:

i) C 1 -C 6 linear or branched alkyl; or

ii) C 1 -C 6 linear or branched alkoxy;

R 4 and R 5 are each independently chosen from:

i) hydrogen;

ii) substituted or unsubstituted C 1 -C 6 linear or branched alkyl, or C 3 -C 6 cyclic alkyl;

iii) substituted or unsubstituted phenyl;

iv) substituted or unsubstituted heteroaryl; or

R 4 and R 5 can be taken together to form a saturated or unsaturated ring having from 5 to 7 atoms;

R 6 is a unit chosen from:

i) hydrogen;

ii) substituted or unsubstituted C 1 -C 6 linear or branched alkyl, or C 3 -C 6 cyclic alkyl;

iii) substituted or unsubstituted phenyl; and

iv) substituted or unsubstituted heteroaryl.

46. A pharmaceutical composition comprising:

A) one or more compounds according to claim 39 ; and

B) one or more excipients or carriers.

47. A compound according to claim 39 , wherein the compound is a pharmaceutically acceptable salt of either basic groups or acid groups.

48. A compound according to claim 47 , wherein the compounds are salts comprising anions chosen from chloride, bromide, iodide, sulfate, bisulfate, carbonate, bicarbonate, phosphate, formate, acetate, propionate, butyrate, pyruvate, lactate, oxalate, malonate, maleate, succinate, tartrate, fumarate, and citrate.

49. A compound according to claim 47 , wherein the compounds are salts comprising cations chosen from ammonium, sodium, lithium, potassium, calcium, magnesium, and bismuth.

Assignments (13)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 9, 2021
From: AERPIO PHARMACEUTICALS, INC.
To: EYEPOINT PHARMACEUTICALS, INC.
Reel/Frame 057448/0033 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 17, 2020
From: AERPIO THERAPEUTICS LLC
To: AERPIO PHARMACEUTICALS, INC.
Reel/Frame 052432/0789 →
CHANGE OF NAME Recorded Jul 31, 2019
From: AERPIO THERAPEUTICS, INC.
To: AERPIO THERAPEUTICS LLC
Reel/Frame 049922/0273 →
RELEASE OF SECURITY INTEREST Recorded Oct 31, 2013
From: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
To: WARNER CHILCOTT COMPANY, LLC
Reel/Frame 031531/0538 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 2, 2012
From: AKEBIA THERAPEUTICS, INC.
To: AERPIO THERAPEUTICS, INC.
Reel/Frame 027796/0585 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 27, 2011
From: WARNER CHILCOTT COMPANY, LLC
To: AKEBIA THERAPEUTICS INC.
Reel/Frame 027445/0100 →
PATENT RELEASE Recorded Dec 23, 2011
From: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
To: WARNER CHILCOTT COMPANY, LLC
Reel/Frame 027443/0164 →
SECURITY AGREEMENT Recorded Mar 30, 2011
From: WARNER CHILCOTT COMPANY LLC
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 026064/0607 →
RELEASE - REEL 023456, FRAME 0052 Recorded Mar 29, 2011
From: CREDIT SUISSSE AG, CAYMAN ISLANDS BRANCH, AS ADMINISTRATIVE AGENT
To: WARNER CHILCOTT COMPANY LLC
Reel/Frame 026042/0046 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 8, 2010
From: PROCTER & GAMBLE COMPANY, THE
To: WARNER CHILCOTT COMPANY, LLC
Reel/Frame 023796/0417 →
SECURITY AGREEMENT Recorded Nov 2, 2009
From: WARNER CHILCOTT COMPANY, LLC
To: CREDIT SUISSE, CAYMAN ISLANDS BRANCH, AS ADMINISTRATIVE AGENT
Reel/Frame 023456/0052 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 13, 2009
From: AMARASINGHE, KANDE K. D.; CLARK, CYNTHIA MONESA; NICHOLS, RYAN MATTHEW; MAIER, MATTHEW B.
To: THE PROCTER & GAMBLE COMPANY
Reel/Frame 022254/0528 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 3, 2007
From: GRAY, JEFFREY LYLE
To: PROCTER & GAMBLE COMPANY, THE
Reel/Frame 020202/0246 →