Inhibitors of IRAK4 activity

1. A compound according to Formula I:

wherein:

X is NH or O;

b is 0 or 1;

n is 0, 1, 2, 3 or 4;

R 1 and R 2 are independently H and (C 1 -C 4 )alkyl, or R 1 and R 2 can be taken together with the nitrogen to which they are attached to form a heterocycle optionally containing, in addition to the nitrogen, one or two additional heteroatoms selected from N, O and S, said alkyl and heterocycle are optionally substituted with one or more substituents selected from R a ;

R 3 is (C 1 -C 4 )alkyl wherein two adjacent alkyl groups can join together and form a bridged moiety of 3-6 carbon atoms;

R 4 is absent, halo or O b (C 1 -C 4 )alkyl;

R 5 is aryl or heteroaryl each optionally substituted with one or more substituents selected from R b ;

R 6 is absent, halo, or O(C 1 -C 4 )alkyl;

R a is independently selected from: halo, O b (C 1 -C 4 )alkyl, SO 2 (C 1 -C 4 )alkyl, C(O)C 1 -C 4 alkyl, said alkyl optionally substituted with halo or heterocyclyl; and

R b is independently selected from OH, halo, CHF 2 , CF 3 , COOH, SO 2 (C 1 -C 4 )alkyl, C═O(O)C 1 -C 4 alkyl, O b (C 1 -C 4 )alkyl, aryl, heterocyclyl, CN, C(O)N(R c ) 2 , N(R c ) 2 ; said R c and alkyl are optionally substituted with OH, O(C 1 -C 4 )alkyl and heterocyclyl; and

R c is independently H, SO 2 (C 1 -C 4 )alkyl, or C 1 -C 4 alkyl;

or a pharmaceutically acceptable salt or a stereoisomer thereof.

2. A compound according to claim 1 of Formula II:

wherein:

b is 0 or 1;

R 1 and R 2 are independently H and (C 1 -C 4 )alkyl, or R 1 and R 2 can be taken together with the nitrogen to which they are attached to form: morpholinyl, piperidinyl, azetidinyl and piperazinyl, said alkyl, morpholinyl, piperidinyl, azetidinyl and piperaziyle are optionally substituted with one or more substituents selected from R a ;

R 4 is absent or methyl;

R 5 is aryl or heteroaryl each optionally substituted with one or more substituents selected from R b ;

R 6 is absent or F;

R a is independently selected from: F, O b (C 1 -C 4 )alkyl, SO 2 (C 1 -C 4 )alkyl, C(O)C 1 -C 4 alkyl, said alkyl optionally substituted with F or morpholinyl;

R b is independently selected from OH, halo, CHF 2 , CF 3 , COOH, SO 2 (C 1 -C 4 )alkyl, C═O(O)C 1 -C 4 alkyl, O b (C 1 -C 4 )alkyl, aryl, heterocyclyl, CN, C(O)N(R c ) 2 , N(R c ) 2 ; said R c and alkyl are optionally substituted with OH, O(C 1 -C 4 )alkyl and heterocyclyl; and

R c is independently H, SO 2 (C 1 -C 4 )alkyl, or C 1 -C 4 alkyl;

or a pharmaceutically acceptable salt or a stereoisomer thereof.

3. A compound which is selected from:

trans-N,N-dimethyl-N′-[6(6-methylpyridazin-4-yl)quinazolin-4-yl]cyclohexane-1,4-diamine;

cis or trans-N,N-dimethyl-N′-(6-phenylquinazolin-4-yl)cyclohexane-1,4-diamine;

cis or trans-N,N-dimethyl-N′-[6-(pyridin-4-yl)quinazolin-4-yl]cyclohexane-1,4-diamine;

cis or trans-N,N-dimethyl-N′-[6-(pyridin-3-yl)quinazolin-4-yl]cyclohexane-1,4-diamine;

cis or trans-N,N-dimethyl-N′-(6-phenylquinazolin-4-yl)cyclohexane-1,4-diamine;

cis or trans-N,N-dimethyl-N′-[6-(pyridin-4-yl)quinazolin-4-yl]cyclohexane-1,4-diamine;

cis or trans-N,N-dimethyl-N′-[6-(pyridin-3-yl)quinazolin-4-yl]cyclohexane-1,4-diamine;

trans-N′-[6-(2-methoxypyridin-4-yl)quinazolin-4-yl]-N,N-dimethylcyclohexane-1,4-diamine;

trans-N,N-dimethyl-N′-[6-(1-methyl-1H-pyrazol-4-yl)quinazolin-4-yl]cyclohexane-1,4-diamine;

cis or trans-N,N-dimethyl-N′-[6-(1H-pyrazol-4-yl)quinazolin-4-yl]cyclohexane-1,4-diamine;

cis or trans-N′-[6-(6-aminopyridin-3-yl)quinazolin-4-yl]-N,N-dimethylcyclohexane-1,4-diamine;

trans-N,N-dimethyl-N′-[6-(1H-pyrazol-3-yl)quinazolin-4-yl]cyclohexane-1,4-diamine;

trans-N,N-dimethyl-N′-{6-[2-(methylamino)pyrimidin-5-yl]quinazolin-4-yl}cyclohexane-1,4-diamine;

trans-N′-{6-[1-(1-ethoxyethyl)-1H-pyrazol-4-yl]quinazolin-4-yl}-N,N-dimethylcyclohexane-1,4-diamine;

trans-N,N-dimethyl-N′-(6-{1-[2-(morpholin-4-yl)ethyl]-1H-pyrazol-4-yl}quinazolin-4-yl)cyclohexane-1,4-diamine;

trans-N,N-dimethyl-N-′-{6-[1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazol-4-yl]quinazolin-4-yl}cyclohexane-1,4-diamine;

trans-N,N-dimethyl-N′-{6-[1-(pyridin-2-ylmethyl)-1H-pyrazol-4-yl]quinazolin-4-yl}cyclohexane-1,4-diamine;

trans-N′-[6-(1-ethyl-1H-pyrazol-4-yl)quinazolin-4-yl]-N,N-dimethylcyclohexane-1,4-diamine;

trans-N,N-dimethyl-N′-{6-[1-(pyridin-4-ylmethyl)-1H-pyrazol-4-yl]quinazolin-4-yl}cyclohexane-1,4-diamine;

4-(4-{[trans-4-(dimethylamino)cyclohexyl]amino}quinazolin-6-yl)pyridine-3-carbonitrile;

trans-N,N-dimethyl-N′-[6-(3-methylpyridin-4-yl)quinazolin-4-yl]cyclohexane-1,4-diamine;

3-(4-{[trans-4-(dimethylamino)cyclohexyl]amino}quinazolin-6-yl)pyridine-4-carbonitrile;

trans-N,N-dimethyl-N′-{6-[5-(morpholin-4-yl)pyridin-3-yl]quinazolin-4-yl}cyclohexane-1,4-diamine;

trans-N′-[6-(3,5-dimethylisoxazol-4-yl)quinazolin-4-yl]-N,N-dimethylcyclohexane-1,4-diamine;

trans-N,N-dimethyl-N′-[6-(pyrimidin-5-yl)quinazolin-4-yl]cyclohexane-1,4-diamine;

trans-N,N-dimethyl-N′-[6-(5-methyl-3-phenylisoxazol-4-yl)quinazolin-4-yl]cyclohexane-1,4-diamine;

5-(4-{[trans-4-(dimethylamino)cyclohexyl]amino}quinazolin-6-yl)pyridine-2-carbonitrile;

5-(4-{[trans-4-(dimethylamino)cyclohexyl]amino}quinazolin-6-yl)pyridin-2-ol;

trans-N′-[6-(2-aminopyrimidin-5-yl)quinazolin-4-yl]-N,N-dimethylcyclohexane-1,4-diamine;

trans-N,N-dimethyl-N′-[6-(6-methylpyridin-3-yl)quinazolin-4-yl]cyclohexane-1,4-diamine;

methyl 5-(4-{[trans-4-(dimethylamino)cyclohexyl]amino}quinazolin-6-yl)pyridine-3-carboxylate;

trans-N′-[6-(isoxazol-4-yl)quinazolin-4-yl]-N,N-dimethylcyclohexane-1,4-diamine;

5-(4-{[trans-4-(dimethylamino)cyclohexyl]amino}quinazolin-6-yl)pyrimidin-2-ol;

trans-N′-[6-(3-fluoropyridin-4-yl)quinazolin-4-yl]-N,N-dimethylcyclohexane-1,4-diamine;

trans-N′-[6-(4-methoxypyridin-3-yl)quinazolin-4-yl]-N,N-dimethylcyclohexane-1,4-diamine;

trans-N,N-dimethyl-N′-{6-[4-(trifluoromethyl)pyridin-3-yl]quinazolin-4-yl}cyclohexane-1,4-diamine;

5-(4-{[trans-4-(dimethylamino)cyclohexyl]amino}quinazolin-6-yl)pyridine-3-carboxylic acid;

trans-N′-[6-(3-methoxypyridin-4-yl)quinazolin-4-yl]-N,N-dimethylcyclohexane-1,4-diamine;

3-(4-{[trans-4-(dimethylamino)cyclohexyl]amino}quinazolin-6-yl)pyridine-2-carbonitrile;

trans-N′-{6-[5-(2-methoxyethoxy)pyridin-3-yl]quinazolin-4-yl}-N,N-dimethylcyclohexane-1,4-diamine;

trans-N,N-dimethyl-N′-{6-[5-(methylsulfonyl)pyridin-3-yl]quinazolin-4-yl}cyclohexane-1,4-diamine;

trans-N′-{6-[2-(cyclopropylamino)pyrimidin-5-yl]quinazolin-4-yl}-N,N-dimethylcyclohexane-1,4-diamine;

2-{[5-(4-{[trans-4-(dimethylamino)cyclohexyl]amino}quinazolin-6-yl)pyrimidin-2-yl]amino}ethanol;

3-(4-{[trans-4-(dimethylamino)cyclohexyl]amino}quinazolin-6-yl)benzonitrile;

trans-N′-[6-(1H-indol-5-yl)quinazolin-4-yl]-N,N-dimethylcyclohexane-1,4-diamine;

N-[trans-4-(morpholin-4-yl)cyclohexyl]-6-(pyridin-3-yl)quinazolin-4-amine;

N-[trans-4-(morpholin-4-yl)cyclohexyl]-6-(pyrimidin-5-yl)quinazolin-4-amine;

N-[trans-4-(morpholin-4-yl)cyclohexyl]-6-(pyridin-4-yl)quinazolin-4-amine;

trans-N′-[6-(2,3-dihydro-1,4-benzodioxin-6-yl)quinazolin-4-yl]-N,N-dimethylcyclohexane-1,4-diamine;

trans-N,N-dimethyl-N′-[6-(pyridazin-4-yl)quinazolin-4-yl]cyclohexane-1,4-diamine;

trans-N′-[6-(5-methoxypyridin-3-yl)quinazolin-4-yl]-N,N-dimethylcyclohexane-1,4-diamine;

trans-N′-[6-(5-fluoro-6-methoxypyridin-3-yl)quinazolin-4-yl]-N,N-dimethylcyclohexane-1,4-diamine;

trans-N′-[6-(5-fluoropyridin-3-yl)quinazolin-4-yl]-N,N-dimethylcyclohexane-1,4-diamine;

5-(4-{[trans-4-(dimethylamino)cyclohexyl]amino}quinazolin-6-yl)pyridine-3-carbonitrile;

trans-N,N-dimethyl-N′-[6-(1H-pyrrolo[2,3-b]pyridin-5-yl)quinazolin-4-yl]cyclohexane-1,4-diamine;

N-tert-butyl-5-(4-{[trans-4-(dimethylamino)cyclohexyl]amino}quinazolin-6-yl)pyridine-3-carboxamide;

trans-N,N-dimethyl-N′-[6-(4-methyl-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazin-7-yl)quinazolin-4-yl]cyclohexane-1,4-diamine;

trans-N,N-dimethyl-N′-[6-(1H-pyrazolo[3,4-b]pyridin-5-yl)quinazolin-4-yl]cyclohexane-1,4-diamine;

trans-N,N-dimethyl-N′-[6-(1H-pyrrolo[3,2-b]pyridin-6-yl)quinazolin-4-yl]cyclohexane-1,4-diamine;

trans-N,N-dimethyl-N′-[6-(3-methyl-3H-imidazo[4,5-b]pyridin-6-yl)quinazolin-4-yl]cyclohexane-1,4-diamine;

trans-N′-[6-(furo[3,2-b]pyridin-6-yl)quinazolin-4-yl]-N,N-dimethylcyclohexane-1,4-diamine;

trans-N′-[6-(3,5-difluorophenyl)quinazolin-4-yl]-N,N-dimethylcyclohexane-1,4-diamine;

3-(4-{[trans-4-(dimethylamino)cyclohexyl]amino}quinazolin-6-yl)-5-fluorophenol;

5-(4-{[trans-4-(dimethylamino)cyclohexyl]amino}quinazolin-6-yl)-2,3-difluorophenol;

5-(4-{[trans-4-(morpholin-4-yl)cyclohexyl]amino}quinazolin-6-yl)pyridin-3-ol;

3-fluoro-5-{4-[(trans-4-morpholin-4-ylcyclohexyl)amino]quinazolin-6-yl}phenol;

4-{4-[(trans-4-morpholin-4-ylcyclohexyl)amino]quinazolin-6-yl}pyridin-2-ol ;

6-(3,5-difluorophenyl)-N-(trans-4-morpholin-4-ylcyclohexyl)quinazolin-4-amine;

6-(5-methoxypyridin-3-yl)-N′-[trans-4-(morpholin-4-yl)cyclohexyl]quinazolin-4-amine;

2,3-difluoro-5-{4-[(trans-4-morpholin-4-ylcyclohexyl)amino]quinazolin-6-yl}phenol;

6-(5-amino-6-methoxypyridin-3-yl)-N-(trans-4-morpholin-4-ylcyclohexyl)quinazolin-4-amine;

3-{4-[(trans-4-morpholin-4-ylcyclohexyl)amino]quinazolin-6-yl}phenol;

6-(5-aminopyridin-3-yl)-N-(trans-4-morpholin-4-ylcyclohexyl)quinazolin-4-amine;

6-(2-aminopyridin-4-yl)-N-(trans-4-morpholin-4-ylcyclohexyl)quinazolin-4-amine;

6-(1-methyl-1H-pyrazol-4-yl)-N-(trans-4-morpholin-4-ylcyclohexyl)quinazolin-4-amine;

5-methyl-N-(trans-4-morpholin-4-ylcyclohexyl)-6-pyrimidin-5-ylquinazolin-4-amine;

5-methyl-6-(1-methyl-1H-pyrazol-4-yl)-N-(trans-4-morpholin-4-ylcyclohexyl)quinazolin-4-amine;

5-methyl-N-(trans-4-morpholin-4-ylcyclohexyl)-6-pyridin-4-ylquinazolin-4-amine;

5-{5-methyl-4-[(trans-4-morpholin-4-ylcyclohexyl)amino]quinazolin-6-yl}pyridin-3-ol;

7-fluoro-N-(trans-4-morpholin-4-ylcyclohexyl)-6-(1H-pyrazol-4-yl)quinazolin-4-amine;

6-[5-(methylamino)pyridin-3-yl]-N-(trans-4-morpholin-4-ylcyclohexyl)quinazolin-4-amine;

N-(trans-4-morpholin-4-ylcyclohexyl)-6-(1H-pyrazol-4-yl)quinazolin-4-amine;

6-(3-aminophenyl)-N-(trans-4-morpholin-4-ylcyclohexyl)quinazolin-4-amine;

5-{7-fluoro-4-[(trans-4-morpholin-4-ylcyclohexyl)amino]quinazolin-6-yl}pyridin-3-ol;

6-(5-aminopyridin-3-yl)-7-fluoro-N-(trans-4-morpholin-4-ylcyclohexyl)quinazolin-4-amine;

7-fluoro-6-[5-(methylamino)pyridin-3-yl]-N-(trans-4-morpholin-4-ylcyclohexyl)quinazolin-4-amine;

7-fluoro-N-(trans-4-morpholin-4-ylcyclohexyl)-6-pyrimidin-5-ylquinazolin-4-amine;

6-(1H-indol-4-yl)-N-[trans-4-(morpholin-4-yl)cyclohexyl]quinazolin-4-amine;

6-(2-methylpyrimidin-5-yl)-N-[trans-4-(morpholin-4-yl)cyclohexyl]quinazolin-4-amine;

N-[cis-4-(morpholin-4-yl)cyclohexyl]-6-[2-(trifluoromethyl)pyrimidin-5-yl]quinazolin-4-amine;

N-[trans-4-(morpholin-4-yl)cyclohexyl]-6-(1H-pyrazol-3-yl)quinazolin-4-amine;

N-[5-(4-{[trans-4-(morpholin-4-yl)cyclohexyl]amino}quinazolin-6-yl)pyridin-3-yl]methanesulfonamide;

6-(5-methylpyridin-3-yl)-N-[trans-4-(morpholin-4-yl)cyclohexyl]quinazolin-4-amine;

[5-(4-{[trans-4-(morpholin-4-yl)cyclohexyl]amino}quinazolin-6-yl)pyridin-3-yl]methanol;

2-[5-(4-{[trans-4-(morpholin-4-yl)cyclohexyl]amino}quinazolin-6-yl)pyridin-3-yl]propan-2-ol;

6-(isoxazol-4-yl)-N-[trans-4-(morpholin-4-yl)cyclohexyl]quinazolin-4-amine;

6-(5-fluoropyridin-3-yl)-N-[trans-4-(morpholin-4-yl)cyclohexyl]quinazolin-4-amine;

5-(4-{[trans-4-(morpholin-4-yl)cyclohexyl]amino}quinazolin-6-yl)pyridine-3-carbonitrile;

6-(5-chloropyridin-3-yl)-N-[trans-4-(morpholin-4-yl)cyclohexyl]quinazolin-4-amine;

2-chloro-5-(4-{[trans-4-(morpholin-4-yl)cyclohexyl]amino}quinazolin-6-yl)pyridin-3-ol;

ethyl 1-methyl-3-(4-(((trans)-4-morpholinocyclohexyl)amino)quinazolin-6-yl)-1H-pyrazole-4-carboxylate;

6-(2-methyl-1,3-thiazol-4-yl)-N-(trans-4-morpholin-4-ylcyclohexyl)quinazolin-4-amine;

6-[2-(1-methylethyl)-1,3-thiazol-4-yl]-N-(trans-4-morpholin-4-ylcyclohexyl)quinazolin-4-amine;

N-(trans-4-morpholin-4-ylcyclohexyl)-6-[5-(trifluoromethyl)pyridin-3-yl]quinazolin-4-amine;

3-{4-[(trans-4-morpholin-4-ylcyclohexyl)amino]quinazolin-6-yl}-5-(trifluoromethyl)pyridin-2-ol ;

2-chloro-5-{4-[(trans-4-morpholin-4-ylcyclohexyl)amino]quinazolin-6-yl}pyridin-3-ol;

6-(5-amino-6-fluoropyridin-3-yl)-N-(trans-4-morpholin-4-ylcyclohexyl)quinazolin-4-amine;

6-{4-[(trans-4-morpholin-4-ylcyclohexyl)amino]quinazolin-6-yl}pyridine-2-carboxylic acid;

6-(4-fluoro-1H-pyrazol-3-yl)-N-(trans-4-morpholin-4-ylcyclohexyl)quinazolin-4-amine;

4-{4-[(trans-4-morpholin-4-ylcyclohexyl)amino]quinazolin-6-yl}-1H-pyrazole-3-carbonitrile;

5-{4-[(trans-4-morpholin-4-ylcyclohexyl)amino]quinazolin-6-yl}-1H-1,2,3-triazole-4-carbonitrile;

(1-methyl-4-{4-[(trans-4-morpholin-4-ylcyclohexyl)amino]quinazolin-6-yl}-1H-pyrazol-3-yl)methanol;

6-(1-methyl-1H-pyrazol-5-yl)-N-(trans-4-morpholin-4-ylcyclohexyl)quinazolin-4-amine;

N-(trans-4-morpholin-4-ylcyclohexyl)-6-[3-(trifluoromethyl)-1H-pyrazol-4-yl]quinazolin-4-amine;

6-(1-methyl-1H-1,2,3-triazol-5-yl)-N-(trans-4-morpholin-4-ylcyclohexyl)quinazolin-4-amine;

6-(2,3-dihydro-1H-pyrrolo[3,2-b]pyridin-6-yl)-N-[trans-4-(morpholin-4-yl)cyclohexyl]quinazolin-4-amine;

3-(4-{[trans-4-(morpholin-4-yl)cyclohexyl]amino}quinazolin-6-yl)thiophene-2-carbonitrile;

4-(4-{[trans-4-(morpholin-4-yl)cyclohexyl]amino}quinazolin-6-yl)thiophene-3-carbonitrile;

6-(4-methyl-1H-imidazol-5-yl)-N-[trans-4-(morpholin-4-yl)cyclohexyl]quinazolin-4-amine;

6-(3-methyl-1H-pyrazol-4-yl)-N-[trans-4-(morpholin-4-yl)cyclohexyl]quinazolin-4-amine;

6-(1,5-dimethyl-1H-pyrazol-4-yl)-N-[trans-4-(morpholin-4-yl)cyclohexyl]quinazolin-4-amine;

6-(4-methyl-1H-imidazol-2-yl)-N-[trans-4-(morpholin-4-yl)cyclohexyl]quinazolin-4-amine;

6-(1,4-dimethyl-1H-imidazol-2-yl)-N-[trans-4-(morpholin-4-yl)cyclohexyl]quinazolin-4-amine;

6-(3,5-dimethyl-1H-pyrazol-4-yl)-N-[trans-4-(morpholin-4-yl)cyclohexyl]quinazolin-4-amine;

6-(2-methyl-1H-imidazol-4-yl)-N-[trans-4-(morpholin-4-yl)cyclohexyl]quinazolin-4-amine;

6-(2-cyclopropyl-1-methyl-1H-imidazol-5-yl)-N-[trans-4-(morpholin-4-yl)cyclohexyl]quinazolin-4-amine;

6-(1-methyl-1H-imidazol-2-yl)-N-[trans-4-(morpholin-4-yl)cyclohexyl]quinazolin-4-amine;

6-(1-methyl-1H-1,2,4-triazol-5-yl)-N-[trans-4-(morpholin-4-yl)cyclohexyl]quinazolin-4-amine;

6-(isoxazol-4-yl)-N-[trans-4-(morpholin-4-yl)cyclohexyl]quinazolin-4-amine;

6-(6-fluoro-5-methoxypyridin-3-yl)-N-[trans-4-(morpholin-4-yl)cyclohexyl]quinazolin-4-amine;

2-fluoro-5-(4-{[trans-4-(morpholin-4-yl)cyclohexyl]amino}quinazolin-6-yl)pyridin-3-ol;

6-[5-(dimethylamino)-6-fluoropyridin-3-yl]-N-[trans-4-(morpholin-4-yl)cyclohexyl]quinazolin-4-amine;

6-[6-fluoro-5-(methylamino)pyridin-3-yl]-N-[trans-4-(morpholin-4-yl)cyclohexyl]quinazolin-4-amine;

6-(6-chloro-5-fluoropyridin-3-yl)-N-[trans-4-(morpholin-4-yl)cyclohexyl]quinazolin-4-amine;

6-(5,6-difluoropyridin-3-yl)-N-[trans-4-(morpholin-4-yl)cyclohexyl]quinazolin-4-amine;

6-(5-(difluoromethyl)pyridin-3-yl)-N-[trans-4-(morpholin-4-yl)cyclohexyl]quinazolin-4-amine;

6-(5-amino-6-chloropyridin-3-yl)-N-[trans-4-(morpholin-4-yl)cyclohexyl]quinazolin-4-amine;

5-(4-(((trans)-4-(dimethylamino)cyclohexyl)amino)quinazolin-6-yl)pyridin-3-ol;

N,N-dimethyl-6-(4-(((trans)-4-morpholinocyclohexyl)amino)quinazolin-6-yl)picolinamide;

5-(4-{[trans-4-(4,4-difluoropiperidin-1-yl)cyclohexyl]amino}quinazolin-6-yl)-2-fluoropyridin-3-ol;

5-(4-{[trans-4-(3-methoxyazetidin-1-yl)cyclohexyl]amino}quinazolin-6-yl)pyridin-3-ol;

5-[4-({trans-4-[cyclopropyl(methyl)amino]cyclohexyl}amino)quinazolin-6-yl]pyridin-3-ol;

5-[4-({trans-4-[(2-methoxyethyl)amino]cyclohexyl}amino)quinazolin-6-yl]pyridin-3-ol;

5-(4-{[trans-4-(4-methylpiperazin-1-yl)cyclohexyl]amino}quinazolin-6-yl)pyridin-3-ol;

5-[4-({trans-4-[(2R,6S)-2,6-dimethylmorpholin-4-yl]cyclohexyl}amino)quinazolin-6-yl]pyridin-3-ol;

6-[5-(methylamino)pyridin-3-yl]-N-{trans-4-[4-(methylsulfonyl)piperazin-1-yl]cyclohexyl}quinazolin-4-amine;

N-[trans-4-(4,4-difluoropiperidin-1-yl)cyclohexyl]-6-[5-(methylamino)pyridin-3-yl]quinazolin-4-amine;

N-[trans-4-(4-fluoropiperidin-1-yl)cyclohexyl]-6-[5-(methylamino)pyridin-3-yl]quinazolin-4-amine;

6-(5-(methylamino)pyridin-3-yl)-N-{trans-4-[4-(morpholin-4-ylmethyl)piperidin-1-yl]cyclohexyl}quinazolin-4-amine;

6-(5-(methylamino)pyridin-3-yl)-N-{trans-4-[(3R)-3-(morpholin-4-ylmethyl)piperidin-1-yl]cyclohexyl}quinazolin-4-amine;

6-[5-(methylamino)pyridin-3-yl]-N-{trans-4-[(3S)-3-(morpholin-4-ylmethyl)piperidin-1-yl]cyclohexyl}quinazolin-4-amine;

2-fluoro-5-(4-{[trans-4-(4-fluoropiperidin-1-yl)cyclohexyl]amino}quinazolin-6-yl)pyridin-3-ol;

2-fluoro-5-[4-({trans-4-[4-(methylsulfonyl)piperazin-1-yl]cyclohexyl}amino)quinazolin-6-yl]pyridin-3-ol;

6-(5-amino-6-fluoropyridin-3-yl)-N-[trans-4-(4,4-difluoropiperidin-1-yl)cyclohexyl]quinazolin-4-amine;

6-(5-amino-6-fluoropyridin-3-yl)-N-[trans-4-(4-fluoropiperidin-1-yl)cyclohexyl]quinazolin-4-amine;

5-(4-{[trans-4-(4,4-difluoropiperidin-1-yl)cyclohexyl]amino}quinazolin-6-yl)pyridin-3-ol;

5-(4-{[trans-4-(4-fluoropiperidin-1-yl)cyclohexyl]amino}quinazolin-6-yl)pyridin-3-ol;

6-(5-amino-6-fluoropyridin-3-yl)-N-{trans-4-[(2R,6S)-2,6-dimethylmorpholin-4-yl]cyclohexyl}quinazolin-4-amine;

6-(5-amino-6-fluoropyridin-3-yl)-N-{trans-4-[4-(methylsulfonyl)piperazin-1-yl]cyclohexyl}quinazolin-4-amine;

6-(5-amino-6-fluoropyridin-3-yl)-N-{trans-4-[3-(morpholin-4-ylmethyl)piperidin-1-yl]cyclohexyl}quinazolin-4-amine;

6-(5-amino-6-fluoropyridin-3-yl)-N-{trans-4-[(2R)-2-(fluoromethyl)morpholin-4-yl]cyclohexyl}quinazolin-4-amine;

6-(5-amino-6-fluoropyridin-3-yl)-N-{trans-4-[(2S)-2-(fluoromethyl)morpholin-4-yl]cyclohexyl}quinazolin-4-amine;

6-(5-amino-6-fluoropyridin-3-yl)-N-{trans-4-[(2R)-2-methylmorpholin-4-yl]cyclohexyl}quinazolin-4-amine;

6-(5-amino-6-fluoropyridin-3-yl)-N-{trans-4-[(2S)-2-methylmorpholin-4-yl]cyclohexyl}quinazolin-4-amine;

N-{trans-4-[(2R,6S)-2,6-dimethylmorpholin-4-yl]cyclohexyl}-6-[6-fluoro-5-(methylamino)pyridin-3-yl]quinazolin-4-amine;

N-[trans-4-(4,4-difluoropiperidin-1-yl)cyclohexyl]-6-[6-fluoro-5-(methylamino)pyridin-3-yl]quinazolin-4-amine;

cyclopropyl {4-[trans-4-({6-[6-fluoro-5-(methylamino)pyridin-3-yl]quinazolin-4-yl}amino)cyclohexyl]piperazin-1-yl}methanone;

6-[6-fluoro-5-(methylamino)pyridin-3-yl]-N-[trans-4-(4-fluoropiperidin-1-yl)cyclohexyl]quinazolin-4-amine;

6-[6-fluoro-5-(methylamino)pyridin-3-yl]-N-{trans-4-[(2R)-2-methylmorpholin-4-yl]cyclohexyl}quinazolin-4-amine; and

6-[6-fluoro-5-(methylamino)pyridin-3-yl]-N-{trans-4-[(2S)-2-methylmorpholin-4-yl]cyclohexyl}quinazolin-4-amine;

or a pharmaceutically acceptable salt or stereoisomer thereof.

4. A pharmaceutical composition comprising a pharmaceutical carrier, and dispersed therein, a therapeutically effective amount of a compound of claim 1 .