Use of small molecule inhibitors targeting EYA tyrosine phosphatase

1. A compound having the structure of Formula I:

or a pharmaceutically acceptable salt thereof,

wherein:

R 1 is selected from the group consisting of C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, aryl, heteroaryl, heterocyclyl, arylalkyl, heteroarylalkyl, heterocyclylalkyl, cycloalkyl, cycloalkenyl, (cyclolalkyl)alkyl, and amino, said C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, aryl, heteroaryl, heterocyclyl, arylalkyl, heteroarylalkyl, heterocyclylalkyl, cycloalkyl, cycloalkenyl, and (cyclolalkyl)alkyl are each optionally substituted with one or more R 1A ;

each R 1A is independently selected from the group consisting of hydroxy, halo, cyano, nitro, C 1-6 alkyl optionally substituted with up to 5 fluoro, C 1-6 alkoxy optionally substituted with up to 5 fluoro;

R 2 is selected from the group consisting of H (hydrogen), halo, hydroxy, and C 1-6 alkyl substituted with one or more hydroxy;

R 3 is selected from the group consisting of halo, hydroxy, and C 1-6 alkyl substituted with one or more hydroxy;

R 4 is H (hydrogen) or halo;

R 5 and R 6 are each independently selected from the group consisting of H (hydrogen), halo, cyano, C 1-6 alkyl, aryl, heteroaryl, heterocyclyl, and amino, said C 1-6 alkyl, aryl, heteroaryl, and heterocyclyl each optionally substituted with one or more R 1A ;

X 1 is [C(R 2A ) 2 ] n , O (oxygen), or NR 2A , or X 1 is absent;

X 2 is [C(R 2A ) 2 ] n , O (oxygen), or NR 2A , or X 2 is absent;

each R 2A is independently selected from the group consisting of H (hydrogen), halo, O-carbamyl, N-carbamyl, C-amido, S-sulfonamido, N-sulfonamido, C-carboxy, amino, aryl, heteroaryl, heterocyclyl, arylalkyl, heteroarylalkyl, heterocyclylalkyl, cycloalkyl, cycloalkenyl, (cyclolalkyl)alkyl, C 1-6 alkyl substituted with one or more hydroxyl, and C 1-6 alkyl optionally substituted with up to 5 fluoro;

each n is independently 1 or 2;

Y 1 is O (oxygen); and

each Z is independently selected from the group consisting CR 2A , and N (nitrogen), with the proviso that the compound is not:

or a pharmaceutically acceptable salt thereof.

2. The compound of claim 1 , wherein the compound having the structure of Formula I has the structure of Formula Ia, or Ib,

or a pharmaceutically acceptable salt thereof.

3. The compound of claim 2 , wherein the compound having the structure of Formula I has the structure of Formula Ia,

or a pharmaceutically acceptable salt thereof.

4. The compound of claim 2 , wherein the compound having the structure of Formula I has the structure of Formula Ib,

or a pharmaceutically acceptable salt thereof.

5. The compound of claim 1 , wherein the compound of Formula I has the structure of Formula II:

or a pharmaceutically acceptable salt thereof,

wherein:

X 1 is O (oxygen), or NR 2A , or X 1 is absent;

X 2 is O (oxygen), or NR 2A , or X 2 is absent;

each R 2A is independently selected from the group consisting of H (hydrogen), halo, C 1-6 alkyl substituted with one or more hydroxyl, and C 1-6 alkyl optionally substituted with up to 5 fluoro; and

Y 1 is O (oxygen), or S (sulfur).

6. The compound of claim 5 , wherein the compound having the structure of Formula II has the structure of Formula IIa, or IIb,

or a pharmaceutically acceptable salt thereof, wherein R 2 and R 4 are each independently H (hydrogen) or halo; and each R 2A is independently hydrogen, or halo.

7. The compound of claim 6 , wherein the compound having the structure of Formula II has the structure of Formula IIa,

or a pharmaceutically acceptable salt thereof.

8. The compound of claim 6 , wherein the compound having the structure of Formula II has the structure of Formula IIb,

or a pharmaceutically acceptable salt thereof.

9. A compound having the structure of Formula III:

or a pharmaceutically acceptable salt thereof,

wherein:

R 1 is selected from the group consisting of C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, aryl, heteroaryl, heterocyclyl, arylalkyl, heteroarylalkyl, heterocyclylalkyl, cycloalkyl, cycloalkenyl, (cyclolalkyl)alkyl, and amino, said C 1-6 alkyl, C 2-6 alkenyl, C 1-6 alkynyl, aryl, heteroaryl, heterocyclyl, arylalkyl, heteroarylalkyl, heterocyclylalkyl, cycloalkyl, cycloalkenyl, and (cyclolalkyl)alkyl are each optionally substituted with one or more R 1A ;

each R 1A is independently selected from the group consisting of hydroxy, halo, cyano, nitro, C 1-6 alkyl optionally substituted with up to 5 fluoro, C 1-6 alkoxy optionally substituted with up to 5 fluoro;

R 2 is selected from the group consisting of iodo, hydroxy, and C 1-6 alkyl substituted with one or more hydroxy;

R 3 is halo or hydroxy;

R 4 is H (hydrogen) or halo;

R 2AA is H (hydrogen) or hydroxyl;

R 2AB is H (hydrogen) or hydroxyl; and

Y 1 is O (oxygen), or S (sulfur)), with the proviso that the compound is not:

or a pharmaceutically acceptable salt thereof.

10. The compound of claim 9 , wherein R 2AA is hydroxyl.

11. The compound of claim 9 , wherein R 2AB is H (hydrogen).

12. The compound of claim 1 , wherein R 1 is C 1-6 alkyl optionally substituted with one or more R 1A .

13. The compound of claim 1 , wherein R 1 is ethyl.

14. The compound of claim 1 , wherein R 2 is iodo or bromo.

15. The compound of claim 1 , wherein R 4 is iodo or bromo.

16. A composition comprising a pharmaceutically acceptable excipient, and a compound of claim 1 .

17. The composition of claim 16 , wherein the compound is:

or a pharmaceutically acceptable salt thereof.

18. The composition of claim 16 for use in treating proliferative retinopathy, retinopathy of prematurity, diabetic retinopathy, age related macular degeneration, retinal vasculitis, exudative vitreoretinopathy, tumor angiogenesis, hemangiomas, tumor metastasis, treating breast cancer, ductal carcinoma lobule carcinoma, breast epithelial cancer, ovarian cancer, including epithelial ovarian cancer, desmoid tumor, malignant peripheral nerve sheath cancer, acute leukemia, rhabdomyosarcoma, Ewing's sarcoma, extra-skeletal myxoid chondrosarcoma, or endometrial cancer.

19. The composition of claim 18 , wherein the compound is:

or a pharmaceutically acceptable salt thereof.

20. The composition of claim 18 , wherein the compound is:

or a pharmaceutically acceptable salt thereof.