Heterocyclic compounds and uses thereof

1. A compound of Formula (I):

or a pharmaceutically acceptable salt, a tautomer or an isomer thereof, wherein:

ring A is fused C 6-10 aryl, fused 5- or 6-membered heteroaryl or fused 4 to 10-membered heterocycloalkyl, wherein the fused 5- or 6-membered heteroaryl or fused 4 to 10-membered heterocycloalkyl has a carbon and 1-4 heteroatoms as ring members selected from O, N, and S, wherein the N and S as ring members are each optionally oxidized, with the proviso that ring A is other than pyrazolyl having the formula:

wherein the single wavy line indicates the point of attachment to the X linkage in Formula (I), the double wavy line indicates the point of attachment to the ring carbon atom of the pyrimidine ring in Formula (I) and the dashed circular line indicates a single or a double bond and wherein a ring carbon in pyrazolyl is optionally replaced by a carbonyl group;

ring B is C 6-10 aryl, 5- or 6-membered heteroaryl, C 3-6 cycloalkyl or 4 to 10-membered heterocycloalkyl, wherein the 5- or 6-membered heteroaryl or 4 to 10-membered heterocycloalkyl has a carbon and 1-4 heteroatoms as ring members selected from O, N and S, wherein the N and S as ring members are each optionally oxidized and a ring carbon in ring B is optionally replaced by a carbonyl group;

L is a bond, —(CR 5 R 6 ) m —, —C(O)—, —S(O) or —SO 2 —; R 5 and R 6 are each independently selected from H, C 1-4 alkyl, C 1-4 alkoxy, C 1-4 haloalkyl, C 1-4 haloalkoxy, halogen, OH, CN and NH 2 , wherein C 1-4 alkyl, C 1-4 alkoxy, C 1-4 haloalkyl and C 1-4 haloalkoxy of R 5 and R 6 are each further optionally substituted with 1-2 members independently selected from halo, OH, CN, NH 2 , OR 7 , NHR 7 , NR 7 R 7 , C 1-4 alkyl, C 1-4 alkoxy, C 1-4 haloalkyl and C 1-4 haloalkoxy;

or R 5 and R 6 taken together with the carbon atom to which they are attached form a C 3-6 cycloalkyl ring, optionally substituted with 1-2 members independently selected from OH, CN, NH 2 , OR 7 , NHR 7 , NR 7 R 7 , C 1-4 alkyl, C 1-4 alkoxy, C 1-4 haloalkyl and C 1-4 haloalkoxy;

each R 7 is independently C 1-4 alkyl;

the subscript m is 1, 2 or 3;

X is a bond, —C(O)— or —CR 8 R 9 —;

R 8 and R 9 are each independently H, C 1-4 alkyl, C 1-4 alkoxy, C 1-4 haloalkyl or C 1-4 haloalkoxy, wherein the C 1-4 alkyl, C 1-4 alkoxy, C 1-4 haloalkyl and C 1-4 haloalkoxy of R 8 and R 9 are each optionally substituted with 1-2 members independently selected from OH, CN, NH 2 , OR 7 , NHR 7 , NR 7 R 7 , C 1-4 alkyl, C 1-4 alkoxy, C 1-4 haloalkyl, and C 1-4 haloalkoxy;

or R 8 and R 9 taken together with the carbon atom to which they are attached form a C 3-6 cycloalkyl ring, optionally substituted with 1-2 members independently selected from OH, CN, NH 2 , OR 7 , NHR 7 , NR 7 R 7 , C 1-4 alkyl, C 1-4 alkoxy, C 1-4 haloalkyl, and C 1-4 haloalkoxy;

each R 1 is independently selected from H, halo, C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 1-6 haloalkyl, C 1-6 haloalkoxy, C 6-10 aryl, C 3-10 cycloalkyl, 5-10 membered heteroaryl, 4-10 membered heterocycloalkyl, C 6-10 aryl-C 1-4 alkyl-, C 3-10 cycloalkyl-C 1-4 alkyl-, (5-10 membered heteroaryl)-C 1-4 alkyl-, (4-10 membered heterocycloalkyl)-C 1-4 alkyl-, CN, NO 2 , OR a , SR a , NHOR a , C(O)R a , C(O)NR a R a , C(O)OR a , OC(O)R a , OC(O)NR a R a , NH 2 , NHR a , NR a R a , NR a C(O)R a , NR a C(O)OR a , NR a C(O)NR a R a , C(═NR a )R a , C(═NR a )NR a R a , NR a C(═NR a )NR a R a , NR a S(O)R a , NR a S(O) 2 R a , NR a S(O) 2 NR a R a , S(O)R a , S(O)NR a R a , S(O) 2 R a , and S(O) 2 NR a R a , wherein the C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 6-10 aryl, C 3-10 cycloalkyl, 5-10 membered heteroaryl, 4-10 membered heterocycloalkyl, C 6-10 aryl-C 1-4 alkyl-, C 3-10 cycloalkyl-C 1-4 alkyl-, (5-10 membered heteroaryl)-C 1-4 alkyl-, and (4-10 membered heterocycloalkyl)-C 1-4 alkyl- of R 1 are each optionally substituted with 1, 2, 3, or 4 R b substituents;

each R b is independently selected from halo, C 1-4 alkyl, C 1-4 haloalkyl, C 1-4 haloalkoxy, C 6-10 aryl, C 3-10 cycloalkyl, 5-10 membered heteroaryl, 4-10 membered heterocycloalkyl, C 6-10 aryl-C 1-4 alkyl-, C 3-10 cycloalkyl-C 1-4 alkyl-, (5-10 membered heteroaryl)-C 1-4 alkyl-, (4-10 membered heterocycloalkyl)-C 1-4 alkyl-, CN, NO 2 , NHOR c , OR c , SR c , C(O)R c , C(O)NR c R c , C(O)OR c , OC(O)R c , OC(O)NR c R c , C(═NR c )NR c R c , NR c C(═NR c )NR c R c , NR c R c , NR c C(O)R c , NR c C(O)OR c , NR c C(O)NR c R c , NR c S(O)R c , NR c S(O) 2 R c , NR c S(O) 2 NR c R c , S(O)R c , S(O)NR c R c , S(O) 2 R c and S(O) 2 NR c R c ; wherein the C 1-4 alkyl, C 1-4 haloalkyl, C 1-4 haloalkoxy, C 6-10 aryl, C 3-10 cycloalkyl, 5-10 membered heteroaryl, 4-10 membered heterocycloalkyl, C 6-10 aryl-C 1-4 alkyl-, C 3-10 cycloalkyl-C 1-4 alkyl-, (5-10 membered heteroaryl)-C 1-4 alkyl- and (4-10 membered heterocycloalkyl)-C 1-4 alkyl- of R b are each further optionally substituted with 1-3 R d substituents;

or two R 1 substituents attached to the same carbon of ring A are taken together to form an oxo group or a C 3-6 cycloalkyl optionally substituted with 1-2 members independently selected from OH, CN, NH 2 , OR 7 , NHR 7 , NR 7 R 7 , C 1-4 alkyl, C 1-4 alkoxy, C 1-4 haloalkyl, and C 1-4 haloalkoxy;

each R a is independently selected from H, C 1-6 alkyl, C 1-4 haloalkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 6-10 aryl, C 3-10 cycloalkyl, 5-10 membered heteroaryl, 4-10 membered heterocycloalkyl, C 6-10 aryl-C 1-4 alkyl-, C 3-10 cycloalkyl-C 1-4 alkyl-, (5-10 membered heteroaryl)-C 1-4 alkyl-, and (4-10 membered heterocycloalkyl)-C 1-4 alkyl-, wherein the C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 6-10 aryl, C 3-10 cycloalkyl, 5-10 membered heteroaryl, 4-10 membered heterocycloalkyl, C 6-10 aryl-C 1-4 alkyl-, C 3-10 cycloalkyl-C 1-4 alkyl-, (5-10 membered heteroaryl)-C 1-4 alkyl- and (4-10 membered heterocycloalkyl)-C 1-4 alkyl- of R a are each optionally substituted with 1, 2, 3, 4, or 5 R d substituents;

each R d is independently selected from C 1-4 alkyl, C 1-4 haloalkyl, halo, CN, R e , NHOR e , OR e , SR e , C(O)R e , C(O)NR e R e , C(O)OR e , OC(O)R e , OC(O)NR e R e , NH 2 , NHR e , NR e R e , NR e C(O)R e , NR e C(O)NR e R e , NR e C(O)OR e , C(═NR e )NR e R e , NR e C(═NR e )NR e R e , S(O)R e , S(O)NR e R e , S(O) 2 R e , NR e S(O) 2 R e , NR e S(O) 2 NR e R e , and S(O) 2 NR e R e ;

each R c is independently selected from H, C 1-6 alkyl, C 1-4 haloalkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 6-10 aryl, C 3-10 cycloalkyl, 5-10 membered heteroaryl, 4-10 membered heterocycloalkyl, C 6-10 aryl-C 1-4 alkyl-, C 3-10 cycloalkyl-C 1-4 alkyl-, (5-10 membered heteroaryl)-C 1-4 alkyl-, and (4-10 membered heterocycloalkyl)-C 1-4 alkyl-, wherein the C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, 10 aryl, C 3-10 cycloalkyl, 5-10 membered heteroaryl, 4-10 membered heterocycloalkyl, C 6-10 aryl-C 1-4 alkyl-, C 3-10 cycloalkyl-C 1-4 alkyl-, (5-10 membered heteroaryl)-C 1-4 alkyl- and (4-10 membered heterocycloalkyl)-C 1-4 alkyl- of R c are each optionally substituted with 1, 2, 3, 4, or 5 R f substituents;

each R f is independently selected from C 1-4 alkyl, C 1-4 haloalkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 6-10 aryl, C 3-10 cycloalkyl, 5-10 membered heteroaryl, 4-10 membered heterocycloalkyl, C 6-10 aryl-C 1-4 alkyl-, C 3-10 cycloalkyl-C 1-4 alkyl-, (5-10 membered heteroaryl)-C 1-4 alkyl-, (4-10 membered heterocycloalkyl)-C 1-4 alkyl-, halo, CN, NHOR g , OR g , SR g , C(O)R g , C(O)NR g R g , C(O)OR g , OC(O)R g , OC(O)NR g R g , NH 2 , NHR g , NR g R g , NR g C(O)R g , NR g C(O)NR g R g , NR g C(O)OR g , C(═NR g )NR g R g , NR g C(═NR g )NR g R g , S(O)R g , S(O)NR g R g , S(O) 2 R g , NR g S(O) 2 R g , NR g S(O) 2 NR g R g , and S(O) 2 NR g R g ; wherein the C 1-4 alkyl, C 1-4 haloalkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 6-10 aryl, C 3-10 cycloalkyl, 5-10 membered heteroaryl, 4-10 membered heterocycloalkyl, C 6-10 aryl-C 1-4 alkyl-, C 3-10 cycloalkyl-C 1-4 alkyl-, (5-10 membered heteroaryl)-C 1-4 alkyl-, and (4-10 membered heterocycloalkyl)-C 1-4 alkyl- of R f are each optionally substituted with 1, 2, 3, 4, or 5 R n substituents;

each R n is independently selected from C 1-4 alkyl, C 1-4 haloalkyl, halo, CN, R o , NHOR o , OR o , SR o , C(O)R o , C(O)NR o R o , C(O)OR o , OC(O)R o , OC(O)NR o R o , NHR o , NR o R o , NR o C(O)R o , NR o C(O)NR o R o , NR o C(O)OR o , C(═NR o )NR o R o , NR o C(═NR o )NR o R o , S(O)R o , S(O)NR o R o , S(O) 2 R o , NR o S(O) 2 R o , NR o S(O) 2 NR o R o , and S(O) 2 NR o R o ;

each R g is independently selected from H, C 1-6 alkyl, C 1-4 haloalkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 6-10 aryl, C 3-10 cycloalkyl, 5-10 membered heteroaryl, 4-10 membered heterocycloalkyl, C 6-10 aryl-C 1-4 alkyl-, C 3-10 cycloalkyl-C 1-4 alkyl-, (5-10 membered heteroaryl)-C 1-4 alkyl-, and (4-10 membered heterocycloalkyl)-C 1-4 alkyl-, wherein the C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 6-10 aryl, C 3-10 cycloalkyl, 5-10 membered heteroaryl, 4-10 membered heterocycloalkyl, C 6-10 aryl-C 1-4 alkyl-, C 3-10 cycloalkyl-C 1-4 alkyl-, (5-10 membered heteroaryl)-C 1-4 alkyl- and (4-10 membered heterocycloalkyl)-C 1-4 alkyl- of R g are each optionally substituted with 1-3 R p substituents;

or any two R a substituents, together with the nitrogen atom to which they are attached, form a 4-, 5-, 6-, or 7-membered heterocycloalkyl group optionally substituted with 1, 2, or 3 R h substituents;

each R h is independently selected from C 1-6 alkyl, C 3-10 cycloalkyl, 4-7 membered heterocycloalkyl, C 6-10 aryl, 5-6 membered heteroaryl, C 1-6 haloalkyl, halo, CN, OR i , R i , SR i , NHOR i , C(O)R i , C(O)NR i R i , C(O)OR i , OC(O)R i , OC(O)NR i R i , NHR i , NR i R i , NR i C(O)R i , NR i C(O)NR i R i , NR i C(O)OR i , C(═NR i )NR i R i , NR i C(═NR i )NR i R i , S(O)R i , S(O)NR i R i , S(O) 2 R i , NR i S(O) 2 R i , NR i S(O) 2 NR i R i , and S(O) 2 NR i R i , wherein the C 1-6 alkyl, C 3-10 cycloalkyl, 4-7 membered heterocycloalkyl, C 6-10 aryl, and 5-6 membered heteroaryl of R h are each further optionally substituted by 1, 2, or 3 substituents;

each R j independently selected from halo, C 1-4 alkyl, C 1-4 haloalkyl, CN, R k , NHOR k , OR k , SR k , C(O)R k , C(O)NR k R k , C(O)OR k , OC(O)R k , OC(O)NR k R k , NHR k , NR k R k , NR k C(O)R k , NR k C(O)NR k R k , NR k C(O)OR k , C(═NR k )NR k R k , NR k C(═NR k )NR k R k , S(O)R k , S(O)NR k R k , S(O) 2 R k , NR k S(O) 2 R k , NR k S(O) 2 NR k R k , and S(O) 2 NR k R k ;

or any two R c substituents, together with the nitrogen atom to which they are attached, form a 4-, 5-, 6-, or 7-membered heterocycloalkyl group optionally substituted with 1, 2, or 3 independently selected R h substituents;

or any two R e substituents, together with the nitrogen atom to which they are attached, form a 4-, 5-, 6-, or 7-membered heterocycloalkyl group optionally substituted with 1, 2, or 3 independently selected R h substituents;

or any two R g substituents, together with the nitrogen atom to which they are attached, form a 4-, 5-, 6-, or 7-membered heterocycloalkyl group optionally substituted with 1, 2, or 3 independently selected R h substituents;

or any two R i substituents, together with the nitrogen atom to which they are attached, form a 4-, 5-, 6-, or 7-membered heterocycloalkyl group optionally substituted with 1, 2, or 3 independently selected R h substituents;

or any two R k substituents, together with the nitrogen atom to which they are attached, form a 4-, 5-, 6-, or 7-membered heterocycloalkyl group optionally substituted with 1, 2, or 3 independently selected R h substituents;

or any two R o substituents, together with the nitrogen atom to which they are attached, form a 4-, 5-, 6-, or 7-membered heterocycloalkyl group optionally substituted with 1, 2, or 3 independently selected R h substituents;

each R e , R i , R k , R o or R p is independently selected from H, C 1-4 alkyl, C 3-6 cycloalkyl, C 6-10 aryl, 5 or 6-membered heteroaryl, C 1-4 haloalkyl, C 2-4 alkenyl, and C 2-4 alkynyl, wherein the C 1-4 alkyl, C 3-6 cycloalkyl, C 6-10 aryl, 5 or 6-membered heteroaryl, C 2-4 alkenyl and C 2-4 alkynyl of R e , R i , R k , R o or R p are each optionally substituted with 1, 2, or 3 substituents independently selected from OH, CN, amino, halo, C 1-4 alkyl, C 1-4 alkoxy, C 1-4 alkylthio, NHR 7 , NR 7 R 7 , C 1-4 haloalkyl, and C 1-4 haloalkoxy;

R 2 is C 1-6 alkyl optionally substituted with 1-3 independently selected R b groups;

R 3 is H or C 1-6 alkyl;

R 4 is —NH 2 , —NHOH, —OH, —CN, —COOH, C 1-4 alkyl, C 1-4 alkoxy, C 1-2 haloalkyl, C 1-2 haloalkoxy, —NHR 10 , —N(R 10 ) 2 , NHOR 10 , —NHC(O)R 10 , —C(O)R 10 , —C(O)NR 10 R 10 , —C(O)OR 10 , —OC(O)R 10 , —OC(O)NR 10 R 10 , —NR 10 R 10 , —NR 10 C(O)R 10 or —NR 10 C(O)OR 10 ; wherein the C 1-4 alkyl, C 1-4 alkoxy, C 1-2 haloalkyl and C 1-2 haloalkoxy of R 4 are each optionally substituted with 1-3 R m substituents independently selected from OH, CN, amino, halo, C 1-4 alkyl, C 1-4 alkoxy, C 1-4 alkylthio, NHR 7 , NR 7 R 7 , C 1-4 haloalkyl, and C 1-4 haloalkoxy;

each R 10 is independently C 1-4 alkyl, C 6-10 aryl or C 1-2 haloalkyl, each of which is optionally substituted with 1-2 independently selected R f groups; and

the subscript n is 1, 2 or 3.

2. The compound of claim 1 , having Formula (II):

or a pharmaceutically acceptable salt, a tautomer or an isomer thereof.

3. The compound of claim 1 , having Formula (III):

or a pharmaceutically acceptable salt, a tautomer or an isomer thereof.

4. The compound of claim 1 , having Formula (IV):

or a pharmaceutically acceptable salt, a tautomer or an isomer thereof.

5. The compound of claim 1 , or a pharmaceutically acceptable salt, a tautomer or an isomer thereof, wherein ring A is fused phenyl.

6. The compound of claim 1 , or a pharmaceutically acceptable salt, a tautomer or an isomer thereof, wherein ring A is a fused 5-membered heteroaryl selected from:

pyrrolyl, imidazolyl, triazolyl, tetrazolyl, oxazolyl, thiazolyl, isoxazolyl, furanyl, thiophenyl, and isothiazolyl.

7. The compound of claim 1 , or a pharmaceutically acceptable salt, a tautomer or an isomer thereof, wherein ring A is fused 6-membered heteroaryl selected from pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, and triazinyl.

8. The compound of claim 1 , or a pharmaceutically acceptable salt, a tautomer or an isomer thereof, wherein ring B is cyclopropyl, cyclobutyl, cyclopentyl, or cyclohexyl.

9. The compound of claim 1 , or a pharmaceutically acceptable salt, a tautomer or an isomer thereof, wherein ring B is 4 to 7-membered heterocycloalkyl selected from azetidinyl, oxetanyl, pyrrolidinyl, tetrahydrofuranyl, oxazolidinyl, isooxazolidinyl, thiazolidinyl, isothiazolidinyl, tetrahydro-pyranyl, morpholinyl, piperidinyl, piperazinyl, oxepanyl, and azepanyl.

10. The compound of claim 1 , or a pharmaceutically acceptable salt, a tautomer or an isomer thereof, wherein L is a bond or —(CH 2 ) m —.

11. The compound of claim 1 , or a pharmaceutically acceptable salt, a tautomer or an isomer thereof, wherein X is —CH 2 — or —C(O)—.

12. The compound of claim 1 , or a pharmaceutically acceptable salt, a tautomer or an isomer thereof, wherein:

each R 1 is independently selected from C 1-6 alkyl, C 1-6 haloalkyl, C 6-10 aryl-C 1-4 alkyl-, C 3-10 cycloalkyl-C 1-4 alkyl-, (5-10 membered heteroaryl)-C 1-4 alkyl-, and (4-10 membered heterocycloalkyl)-C 1-4 alkyl-, each optionally substituted with 1-2 R b substituents;

each R b is independently selected from C 1-6 alkyl, C 1-4 haloalkyl, halo, CN, NHOR c , OR c , C(O)NR c R c , C(O)OR c , OC(O)R c , OC(O)NR c R c , NR c R c , NR c C(O)R c , NR c C(O)OR c , NR c C(O)NR c R c , NR c S(O) 2 R c , NR c S(O) 2 NR c R c , S(O) 2 R c , and S(O) 2 NR c R c ;

each R c is independently selected from H, C 1-6 alkyl, C 1-4 haloalkyl, C 6-10 aryl, C 3-10 cycloalkyl, 5-10 membered heteroaryl, 4-10 membered heterocycloalkyl, C 6-10 aryl-C 1-4 alkyl-, C 3-10 cycloalkyl-C 1-4 alkyl-, (5-10 membered heteroaryl)-C 1-4 alkyl-, and (4-10 membered heterocycloalkyl)-C 1-4 alkyl-, wherein the C 1-6 alkyl, C 6-10 aryl, C 3-10 cycloalkyl, 5-10 membered heteroaryl, 4-10 membered heterocycloalkyl, C 6-10 aryl-C 1-4 alkyl-, C 3-10 cycloalkyl-C 1-4 alkyl-, (5-10 membered heteroaryl)-C 1-4 alkyl- and (4-10 membered heterocycloalkyl)-C 14 alkyl- of R c are each optionally substituted with 1-2 R f substituents; and

each R f substituent is independently selected from F, Cl, OH, C 1-4 alkoxy, C 1-4 haloalkoxy, NH 2 , NH(C 1-4 alkyl), N(C 1-4 alkyl) 2 , C(O)(C 1-4 alkyl), C(O)NH 2 , C(O)NH(C 1-4 alkyl), C(O)N(C 1-4 alkyl) 2 , NHC(O)NH 2 , NHC(O)NH—C 1-4 alkyl, NHC(O)N(C 1-4 alkyl) 2 , OC(O)—C 1-4 alkyl, NHC(O)—C 1-4 alkyl, NHS(O) 2 —C 1-4 alkyl, S(O) 2 —C 1-4 alkyl, S(O) 2 NH 2 , S(O) 2 NH—C 1-4 alkyl, S(O) 2 N(C 1-4 alkyl) 2 , NHS(O) 2 NH 2 , NHS(O) 2 NH—C 1-4 alkyl, and NHS(O) 2 N(C 1-4 alkyl) 2 .

13. The compound of claim 1 , or a pharmaceutically acceptable salt, a tautomer or an isomer thereof, wherein R 1 is C 1-6 alkyl, 5 to 6-membered heteroaryl, 4 to 7-membered heterocycloalkyl-C 1-4 alkyl or C 6-10 aryl, each of which is optionally substituted with 1-3 independently selected R b groups.

14. The compound of claim 1 , or a pharmaceutically acceptable salt, a tautomer or an isomer thereof, wherein R 1 is C 1-6 alkyl, 5 or 6-membered heteroaryl or phenyl, each of which is substituted with 1-3 independently selected R b groups.

15. The compound of claim 12 , or a pharmaceutically acceptable salt, a tautomer or an isomer thereof, wherein:

each R b is independently selected from halo, NR c R c , and C 1-6 alkyl; and

each R c is independently selected from C 1-6 alkyl, C 3-6 cycloalkyl, and 4-6 membered heterocycloalkyl; wherein said C 1-6 alkyl of R c is optionally substituted with OH.

16. The compound of claim 1 , or a pharmaceutically acceptable salt, a tautomer or an isomer thereof, wherein R 1 is morpholinylmethyl, cyclohexylaminomethyl, cyclopenylaminomethyl, 4-tetrahydro-2H-pyranylaminomethyl, C 1-4 alkylamino-C 1-4 alkyl, pyrazolyl, imidazolyl, 2-hydroxyethylaminomethyl or phenyl, each of which is optionally substituted with 1-3 members independently selected from OH, CN, amino, halo, C 1-4 alkyl, C 1-4 alkoxy, C 1-4 alkylthio, NHR 7 , NR 7 R 7 , C 1-4 haloalkyl, and C 1-4 haloalkoxy.

17. The compound of claim 1 , or a pharmaceutically acceptable salt, a tautomer or an isomer thereof, wherein R 1 is morpholin-4-ylmethyl, 2-hydroxyethylaminomethyl, cyclopentylaminomethyl, cyclohexylaminomethyl, tetrahydropyran-4-yl-aminomethyl, 1-methylimidazol-4-yl, or 2,6-difluorophenyl.

18. The compound of claim 1 , or a pharmaceutically acceptable salt, a tautomer or an isomer thereof, wherein R 2 is C 1-6 alkyl optionally substituted with one R b group.

19. The compound of claim 1 , or a pharmaceutically acceptable salt, a tautomer or an isomer thereof, wherein R 2 is n-butyl.

20. The compound of claim 1 , or a pharmaceutically acceptable salt, a tautomer or an isomer thereof, wherein R 3 is H.

21. The compound of claim 1 , or a pharmaceutically acceptable salt, a tautomer or an isomer thereof, wherein R 4 is NH 2 or OH.

22. The compound of claim 1 , or a pharmaceutically acceptable salt, a tautomer or an isomer thereof, wherein the substituents on ring B have trans configuration with respect to each other, when ring B is C 3-6 cycloalkyl or 4 to 10-membered heterocycloalkyl.

23. The compound of claim 1 , wherein the compound is selected from:

trans-4-[3-(Butylamino)-8-(morpholin-4-ylmethyl)pyrimido[4,5-c]isoquinolin-5(6H)-yl]cyclohexanol;

3-(Butylamino)-8-[(cyclohexylamino)methyl]-5-(trans-4-hydroxycyclohexyl)pyrimido[4,5-c]isoquinolin-6(5H)-one;

trans-4-[3-(Butylamino)-8-[(cyclohexylamino)methyl]pyrimido[4,5-c]isoquinolin-5(6H)-yl]cyclohexanol;

3-(Butylamino)-5-(trans-4-hydroxycyclohexyl)-8-[(tetrahydro-2H-pyran-4-ylamino) methyl]pyrimido[4,5-c]isoquinolin-6(5H)-one;

3-(Butylamino)-5-(trans-4-hydroxycyclohexyl)-8-{[(2-hydroxyethyl)amino]methyl}pyrimido [4,5-c]isoquinolin-6(5H)-one;

5-(trans-4-aminocyclohexyl)-3-(butylamino)-8-((cyclohexylamino)methyl)pyrimido[4,5-c]isoquinolin-6(5H)-one;

3-(Butylamino)-5-(trans-4-hydroxycyclohexyl)-8-(1-methyl-1H-pyrazol-4-yl)pyrimido[4,5-c]isoquinolin-6(5H)-one;

3-(Butylamino)-8-(2, 6-difluorophenyl)-5-(trans-4-hydroxycyclohexyl)pyrimido[4,5-c]isoquinolin-6(5H)-one;

5-(trans-4-aminocyclohexyl)-N-butyl-8-[(cyclohexylamino)methyl]-5,6-dihydropyrimido [4,5-c]isoquinolin-3-amine;

5-(trans-4-Aminocyclohexyl)-N-butyl-8-{[(tetrahydropyran-4-yl)amino]methyl}-5, 6-dihydropyrimido[4,5-c]isoquinolin-3-amine; and

5-(trans-4-aminocyclohexyl)-N-butyl-8-((cyclopentylamino)methyl)-5,6-dihydropyrimido[4,5-c]isoquinolin-3-amine;

or a pharmaceutically acceptable salt thereof.

24. A pharmaceutical composition comprising a compound of claim 1 , or a pharmaceutically acceptable salt, a tautomer or an isomer thereof, and a pharmaceutically acceptable carrier or excipient.

25. A method for inhibiting TAM kinases, said method comprising: contacting the TAM kinases with a compound of claim 1 , or a pharmaceutically acceptable salt, a tautomer or an isomer thereof.

26. A method for inhibiting or ameliorating cancer in a patient, said method comprising: administering to the patient a therapeutically effective amount of a compound of claim 1 , or a pharmaceutically acceptable salt, a tautomer or an isomer thereof.

27. The method of claim 26 , wherein the cancer is selected from hepatocellular cancer, bladder cancer, breast cancer, cervical cancer, colorectal cancer, endometrial cancer, gastric cancer, head and neck cancer, kidney cancer, liver cancer, lung cancer, ovarian cancer, prostate cancer, esophageal cancer, gall bladder cancer, pancreatic cancer, thyroid cancer, skin cancer, leukemia, multiple myeloma, chronic lymphocytic lymphoma, adult T cell leukemia, B-cell lymphoma, acute myelogenous leukemia, Hodgkin's or non-Hodgkin's lymphoma, Waldenstrom's Macroglubulinemia, hairy cell lymphoma, Burkett's lymphoma, glioblastoma, melanoma, and rhabdosarcoma.

28. The method of claim 26 , wherein the cancer is lung cancer, prostate cancer, colon cancer, breast cancer, melanoma, renal cell carcinoma, multiple myeloma, gastric cancer, or rhabdomyosarcoma.