Inhibitors of histone demethylases

1. A compound of the Formula (I)

wherein

Q is selected from —CH═NR 12 , —W, —CH 2 NHR 13 , —CH═O and —CH(OR 17 ) 2 ;

A is —CH 2 C(O)—;

Y is —NR 6 R 7 ;

R 1 is —H;

each R 3 is independently selected from C 1-6 alkyl, C 1-4 fluoroalkyl, C 1-4 hydroxyalkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 3-10 cycloalkyl, —Z-heterocyclyl, —Z-aryl, —Z-heteroaryl, —Z—NR 6 R 7 , —Z—C(═O)—NR 6 R 7 , —Z—NR 6 —C(═O)—R 7 , —Z—C(═O)—R 7 , —Z—OR 7 , halogen, —Z—SR 7 , —Z—SOR 7 , —Z—SO 2 R 7 , —Z—SO 2 NR 6 R 7 and —Z—COOR 7 , wherein any heterocyclyl may be substituted with one or more R 4 , and wherein any heteroaryl and any aryl may be substituted with one or more R 5 ;

Z is selected from a single bond, C 1-4 alkylene, heterocyclylene and C 3-6 cycloalkylene;

each R 4 is independently selected from C 1-6 alkyl, C 1-4 fluoroalkyl, C 1-4 hydroxyalkyl, C 1-4 alkoxy, C 3-10 cycloalkyl, —N(R 10 ) 2 , carbamoyl, and —OH;

each R 5 is independently selected from C 1-6 alkyl, C 1-4 fluoroalkyl, C 1-4 hydroxyalkyl, C 1-4 alkoxy, C 3-6 cycloalkyl, —CN, —F, —Cl, —Br, carbamoyl and —OH;

each of R 6 and R 7 is independently selected from —H, C 1-8 alkyl, C 1-4 fluoroalkyl, C 1-4 perfluoroalkyl, C 1-4 hydroxyalkyl, C 2-8 alkenyl, C 2-8 alkynyl, C 3-10 cycloalkyl, —Z-heterocyclyl, —Z-heteroaryl and —Z-aryl, which alkyl, alkenyl, alkynyl, cycloalkyl, heterocyclyl, heteroaryl and aryl may optionally be substituted with one or more independently selected R 8 ; or, alternatively, R 6 and R 7 may together with the N-atom to which they are attached form an N-heterocyclic ring optionally substituted with one or more independently selected R 8 ;

each R 8 is independently selected from C 1-6 alkyl, C 1-4 fluoroalkyl, C 1-4 hydroxyalkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 3-10 cycloalkyl, —Z-heterocyclyl, —Z-heteroaryl, —Z-aryl, —Z—NR 10 R 11 , —Z—C(═O)—NR 10 R 11 , —Z—OR 9 , halogen, —CN, —Z—SR 9 , —Z—SOR 9 , —Z—SO 2 R 9 and —Z—COOR 9 , which alkyl, alkenyl, alkynyl, cycloalkyl, heterocyclyl, heteroaryl and aryl may optionally be substituted with one or more selected from C 1-4 alkyl, C 1-4 fluoroalkyl, C 1-4 hydroxyalkyl, C 3-6 cycloalkyl, —Z-heterocyclyl, —Z-heteroaryl, —Z-aryl, —Z—NR 10 R 11 , —Z—C(═O)—NR 10 R 11 , —Z—OR 9 , halogen, —CN, —Z—SR 9 , —Z—SOR 9 , —Z—SO 2 R 9 and —Z—COOR 9 ; wherein any heterocyclyl may be further substituted with one or more R 4 as defined above, and wherein any heteroaryl and any aryl may be further substituted with one or more R 5 as defined above, and

each R 9 is independently selected from —H, C 1-8 alkyl, C 1-4 fluoroalkyl, C 1-4 hydroxyalkyl, C 2-8 alkenyl, C 2-8 alkynyl, C 3-10 cycloalkyl, —Z-heterocyclyl, —Z-aryl, and —Z-heteroaryl, wherein any heterocyclyl may be substituted with one or more R 4 as defined above, and wherein any heteroaryl and any aryl may be substituted with one or more R 5 as defined above;

each of R 10 and R 11 is independently selected from —H, C 1-6 alkyl, C 1-4 fluoroalkyl, C 1-4 hydroxyalkyl, C 2-8 alkenyl, C 2-8 alkynyl, C 3-10 cycloalkyl, heterocyclyl, heteroaryl, and aryl, wherein any heterocyclyl may be substituted with one or more R 4 as defined above, and wherein any heteroaryl and any aryl may be substituted with one or more R 5 as defined above, or, alternatively, R 10 and R 11 may together with the N-atom to which they are attached form an N-heterocyclic ring optionally substituted with one or more R 4 as defined above;

when Q is —CH═NR 12 , R 12 is selected from C 1-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, C 3-10 cycloalkyl, —Z-heterocyclyl, —Z-aryl, —Z-heteroaryl, —Z—NR 6 R 7 , —Z—C(═O)—NR 6 R 7 , —Z—NR 6 —C(═O)—R 7 , —Z—C(═O)—R 7 , —Z—OR 7 , halogen, —Z—SR 7 , —Z—SOR 7 , —Z—SO 2 R 7 and —Z—COOR 7 , which alkyl, alkenyl, alkynyl, cycloalkyl, heterocyclyl, heteroaryl and aryl may optionally be substituted with one or more R 3 ;

when Q is —CH 2 NHR 13 , R 13 is selected from hydrogen, —C(O)R 7 , —C(O)C(O)R 7 , —R 7 , —CR 14 R 15 —NR 6 R 7 , —CR 14 R 15 CN, —CR 14 R 15 OR 7 , wherein each of R 14 and R 15 is independently selected from —H, C 1-8 alkyl, C 2-8 alkenyl, C 2-8 alkynyl, C 3-10 cycloalkyl, heterocyclyl, heteroaryl and aryl, and wherein R 14 and R 15 together with the intervening carbon atom may designate a C 3-10 cycloalkyl or C 5-10 -cycloalkenyl ring, which alkyl, alkenyl, alkynyl, cycloalkyl ring, cycloalkenyl ring, heterocyclyl, heteroaryl and aryl may optionally be substituted with one or more R 3 ;

when Q is W, W is selected from an 1,3-diaza-C 5-7 -cycloalk-2-yl group which is N-substituted with R 16 and optionally further substituted with one or more R 3 , and an 1,3-oxaza-C 5-7 -cycloalk-2-yl group which is N-substituted with R 16 and optionally further substituted with one or more R 3 , wherein in both instances two R 3 's on the same carbon atom may together form a spiro group R 16 is selected from hydrogen, —C(O)R 7 , and —C(O)C(O)R 7 , and —C(O)C(O)R 7 ;

when Q is —CH(OR 17 ) 2 , each R 17 independently is R 3 , or wherein two R 17 substituents together with the intervening —O—CH(−)—O— may form a heterocyclyl optionally substituted with one or more R 3 and containing up to two oxo groups;

or an isomer or a mixture of isomers thereof, or a pharmaceutically acceptable salt or solvate thereof.

2. A compound having the structure

or a salt or solvate thereof.

3. A compound having the structure

or a salt or solvate thereof.

4. A compound having the structure

or a salt or solvate thereof.

5. The compound of claim 1 , wherein the compound is an acid addition salt.

6. The compound of claim 5 , wherein the acid is selected from succinic, maleic, acetic, fumaric, citric, tartaric, benzoic, trifluoroacetic, malic, lactic, formic, propionic, glycolic, gluconic, camphorsulfuric, isothionic, mucic, gentisic, isonicotinic, saccharic, glucuronic, furoic, glutamic, ascorbic, anthranilic, salicylic, phenylacetic, mandelic, embonic (pamoic), ethanesulfonic, pantothenic, stearic, sulfinilic, alginic, galacturonic, benzenesulfonic, p-toluenesulfonic, oxalic, methanesulfonic, and naphthalenesulfonic acid.

7. The compound of claim 6 , wherein the acid is p-toluenesulfonic or oxalic.

8. The compound of claim 2 , wherein the compound is an acid addition salt.

9. The compound of claim 8 , wherein the acid is selected from succinic, maleic, acetic, fumaric, citric, tartaric, benzoic, trifluoroacetic, malic, lactic, formic, propionic, glycolic, gluconic, camphorsulfuric, isothionic, mucic, gentisic, isonicotinic, saccharic, glucuronic, furoic, glutamic, ascorbic, anthranilic, salicylic, phenylacetic, mandelic, embonic (pamoic), ethanesulfonic, pantothenic, stearic, sulfinilic, alginic, galacturonic, benzenesulfonic, p-toluenesulfonic, oxalic, methanesulfonic, and naphthalenesulfonic acid.

10. The compound of claim 9 , wherein the acid is p-toluenesulfonic or oxalic.

11. The compound of claim 3 , wherein the compound is an acid addition salt.

12. The compound of claim 11 , wherein the acid is selected from succinic, maleic, acetic, fumaric, citric, tartaric, benzoic, trifluoroacetic, malic, lactic, formic, propionic, glycolic, gluconic, camphorsulfuric, isothionic, mucic, gentisic, isonicotinic, saccharic, glucuronic, furoic, glutamic, ascorbic, anthranilic, salicylic, phenylacetic, mandelic, embonic (pamoic), ethanesulfonic, pantothenic, stearic, sulfinilic, alginic, galacturonic, benzenesulfonic, p-toluenesulfonic, oxalic, methanesulfonic, and naphthalenesulfonic acid.

13. The compound of claim 12 , wherein the acid is p-toluenesulfonic or oxalic.

14. The compound of claim 4 , wherein the compound is an acid addition salt.

15. The compound of claim 14 , wherein the acid is selected from succinic, maleic, acetic, fumaric, citric, tartaric, benzoic, trifluoroacetic, malic, lactic, formic, propionic, glycolic, gluconic, camphorsulfuric, isothionic, mucic, gentisic, isonicotinic, saccharic, glucuronic, furoic, glutamic, ascorbic, anthranilic, salicylic, phenylacetic, mandelic, embonic (pamoic), ethanesulfonic, pantothenic, stearic, sulfinilic, alginic, galacturonic, benzenesulfonic, p-toluenesulfonic, oxalic, methanesulfonic, and naphthalenesulfonic acid.

16. The compound of claim 15 , wherein the acid is p-toluenesulfonic or oxalic.

17. A pharmaceutical composition comprising a compound of claim 1 and one or more pharmaceutically acceptable excipients, diluents or carriers.

18. A method of treating cancer in a subject, comprising administering to said subject a therapeutically effective amount of at least one compound of claim 1 , wherein the cancer is squamous cell carcinoma.

19. The method of claim 18 , wherein the squamous cell carcinoma is located in the skin, lips, mouth, esophagus, urinary bladder, prostate, lungs, vagina, or cervix.

20. A method of treating cancer in a subject, comprising administering to said subject a therapeutically effective amount of at least one compound of claim 1 , wherein the cancer is selected from the group consisting of leukemia, lymphoma, oral cancer, laryngeal cancer, esophageal cancer, prostate cancer, bladder cancer, renal cancer, uterine cancer, ovarian cancer, testicular cancer, rectal cancer, colon cancer, lung cancer, brain cancer, breast cancer, pancreatic cancer, stomach cancer, liver cancer, thyroid cancer, melanoma, and multiple myeloma.

21. A method for inhibiting a histone demethylase, comprising contacting a cell with a compound of claim 1 in an amount effective to produce a concentration sufficient to inhibit the demethylation of a histone in a cell.

22. The method of claim 21 , wherein the histone demethylase is a member of the KDM6 family, KDM5 family, KDM4 family, KDM3 family, or KDM2 family.

23. The compound of claim 1 , or an isomer or a mixture of isomers thereof, or a pharmaceutically acceptable salt or solvate thereof, wherein the compound is selected from the group consisting of: