Bicyclic heterocycles as fgfr4 inhibitors

A compound of Formula (I′):

• or a pharmaceutically acceptable salt thereof, wherein:
• ring A is a C6-10 aryl or 5- to 10-membered heteroaryl having carbon and 1 to 4 heteroatoms as ring members selected from O, N, and S, wherein the N and S are each optionally oxidized;
• each R12 is independently selected from halo, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C1-6 haloalkyl, C6-10 aryl, C3-10 cycloalkyl, 5-10 membered heteroaryl, 4-10 membered heterocycloalkyl, C6-10 aryl-C1-4 alkyl-, C3-10 cycloalkyl-C1-4 alkyl-, (5-10 membered heteroaryl)-C1-4 alkyl-, (4-10 membered heterocycloalkyl)-C1-4 alkyl-, CN, NO2, ORa, SRa, C(O)Ra, C(O)NRaRa, C(O)ORa, OC(O)Ra, OC(O)NRaRa, NRaRa, NRaORa, NRaC(O)Ra, NRaC(O)ORa, NRaC(O)NRaRa, C(═NRa)Ra, C(═NRa)NRaRa, NRaC(═NRa)NRaRa, NRaS(O)Ra, NRaS(O)2Ra, NRaS(O)2NRaRa, S(O)Ra, S(O)NRaRa, S(O)2Ra, and S(O)2NRaRa, wherein the C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C6-10 aryl, C3-10 cycloalkyl, 5-10 membered heteroaryl, 4-10 membered heterocycloalkyl, C6-10 aryl-C1-4 alkyl-, C3-10 cycloalkyl-C1-4 alkyl-, (5-10 membered heteroaryl)-C1-4 alkyl-, and (4-10 membered heterocycloalkyl)-C1-4 alkyl- are each optionally substituted with 1, 2, 3, or 4 independently selected Rb substituents;
• or two adjacent R12 substituents on ring A taken together with the atoms to which they are attached form a fused 5- or 6-membered cycloalkyl ring, 5 to 6-membered heterocycloalkyl ring, phenyl or 5 to 6-membered heteroaryl ring, wherein the heterocycloalkyl or heteroaryl has 1-2 heteroatoms as ring members selected from O, N, and S;
• each Ra is independently selected from H, C1-6 alkyl, C1-4 haloalkyl, C6-10 aryl, C3-10 cycloalkyl, 5-10 membered heteroaryl, 4-10 membered heterocycloalkyl, C6-10 aryl-C1-4 alkyl-, C3-10 cycloalkyl-C1-4 alkyl-, (5-10 membered heteroaryl)-C1-4 alkyl-, and (4-10 membered heterocycloalkyl)-C1-4 alkyl-, wherein the C1-6 alkyl, C6-10 aryl, C3-10 cycloalkyl, 5-10 membered heteroaryl, 4-10 membered heterocycloalkyl, C6-10 aryl-C1-4 alkyl-, C3-10 cycloalkyl-C1-4 alkyl-, (5-10 membered heteroaryl)-C1-4 alkyl-, and (4-10 membered heterocycloalkyl)-C1-4 alkyl- of Ra are each optionally substituted with 1, 2, 3, 4, or 5 independently selected Rd substituents;
• or any two Ra substituents attached to the same N atom, together with the N 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 Rh substituents;
• each Rh is independently selected from halo, C1-4 alkyl, C1-4 haloalkyl, C6-10 aryl, C3-10 cycloalkyl, 5-10 membered heteroaryl, 4-10 membered heterocycloalkyl, C6-10 aryl-C1-4 alkyl-, C3-10 cycloalkyl-C1-4 alkyl-, (5-10 membered heteroaryl)-C1-4 alkyl-, and (4-10 membered heterocycloalkyl)-C1-4 alkyl-, CN, NO2, ORc, SRc, C(O)Rc, C(O)NRcRc, C(O)ORc, OC(O)Rc, OC(O)NRcRc, C(═NRc)NRcRc, NRcC(═NRc)NRcRc, NRcRc, NRcC(O)Rc, NRcC(O)ORc, NRcC(O)NRcRc, NRcS(O)Rc, NRcS(O)2Rc, NRcS(O)2NRcRc, S(O)Rc, S(O)NRcRc, S(O)2Rc, and S(O)2NRcRc;
• wherein the C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C6-10 aryl, C3-10 cycloalkyl, 5-10 membered heteroaryl, 4-10 membered heterocycloalkyl, C6-10 aryl-C1-4 alkyl-, C3-10 cycloalkyl-C1-4 alkyl-, (5-10 membered heteroaryl)-C1-4 alkyl-, and (4-10 membered heterocycloalkyl)-C1-4 alkyl- of Rb are each optionally substituted with 1, 2, 3, 4, or 5 independently selected Rf substituents;
• each Rc is independently selected from H, C1-6 alkyl, C1-4 haloalkyl, C2-6 alkenyl, C2-6 alkynyl, C6-10 aryl, C3-10 cycloalkyl, 5-10 membered heteroaryl, 4-10 membered heterocycloalkyl, C6-10 aryl-C1-4 alkyl-, C3-10 cycloalkyl-C1-4 alkyl-, (5-10 membered heteroaryl)-C1-4 alkyl-, and (4-10 membered heterocycloalkyl)-C1-4 alkyl-, wherein said C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C6-10 aryl, C3-10 cycloalkyl, 5-10 membered heteroaryl, 4-10 membered heterocycloalkyl, C6-10 aryl-C1-4 alkyl-, C3-10 cycloalkyl-C1-4 alkyl-, (5-10 membered heteroaryl)-C1-4 alkyl-, and (4-10 membered heterocycloalkyl)-C1-4 alkyl- of Rc are each optionally substituted with 1, 2, 3, 4, or 5 independently selected Rf substituents;
• or any two Rc substituents attached to the same N atom, together with the N 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 Rh substituents;
• each Rd is independently selected from C1-4 alkyl, C1-4 haloalkyl, halo, CN, ORe, C(O)Re, C(O)NReRe, C(O)ORe, OC(O)Re, OC(O)NReRe, NReRe, NReC(O)Re, NReC(O)NReRe, NReC(O)ORe, C(═NRe)NReRe, NReC(═NRe)NReRe, S(O)Re, S(O)NReRe, S(O)2Re, NReS(O)2Re, NReS(O)2NReRe, and S(O)2NReRe;
• each Rf is independently selected from C1-4 alkyl, C1-4 haloalkyl, halo, CN, ORg, SRg, C(O)Rg, C(O)NRgRg, C(O)ORg, OC(O)Rg, OC(O)NRgRg, NRgRg, NRgC(O)Rg, NRgC(O)NRgRg, NRgC(O)ORg, C(═NRg)NRgRg, NRgC(═NRg)NRgRg, S(O)Rg, S(O)NRgRg, S(O)2Rg, NRgS(O)2Rg, NRgS(O)2NRgRg, and S(O)2NRgRg;
• each Rh is independently selected from C1-6 alkyl, C3-7 cycloalkyl, 4-7 membered heterocycloalkyl, C6-10 aryl, 5-6 membered heteroaryl, C1-6 haloalkyl, halo, CN, ORi, SRi, C(O)Ri, C(O)NRiRi, C(O)ORi, OC(O)Ri, OC(O)NRiRi, NRiRi, NRiC(O)Ri, NRiC(O)NRiRi, NRiC(O)ORi, C(═NRi)NRiRi, NRiC(═NRi)NRiRi, S(O)Ri, S(O)NRiRi, S(O)2Ri, NRiS(O)2Ri, NRiS(O)2NRiRi, and S(O)2NRiRi, wherein said C1-6 alkyl, C3-7 cycloalkyl, 4-7 membered heterocycloalkyl, C6-10 aryl, and 5-6 membered heteroaryl of Rh are optionally substituted by 1, 2, or 3 independently selected Rj substituents;
• each Rj is independently selected from halo, C1-4 alkyl, C1-4 haloalkyl, CN, ORk, SRk, C(O)Rk, C(O)NRkRk, C(O)ORk, OC(O)Rk, OC(O)NRkRk, NRkRk, NRkC(O)Rk, NRkC(O)NRkRk, NRkC(O)ORi, C(═NRk)NRkRk, NRkC(═NRk)NRkRk, S(O)Rk, S(O)NRkRk, S(O)2Rk, NRkS(O)2Rk, NRkS(O)2NRkRk, and S(O)2NRkRk;
• each Re, Rg, Ri or Rk is independently selected from H, C1-4 alkyl, C6-10aryl, C1-4 haloalkyl, C2-4 alkenyl, and C2-4 alkynyl, wherein the C1-4 alkyl, C6-10aryl, C2-4 alkenyl or C2-4 alkynyl is optionally substituted with 1, 2, or 3 substituents independently selected from OH, CN, amino, halo, C1-4 alkyl, C1-4 alkoxy, C1-4 alkylthio, C1-4 alkylamino, di(C1-4 alkyl)amino, C1-4 haloalkyl, and C1-4 haloalkoxy;
• or any two Re substituents attached to the same N atom, together with the N 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 Rh substituents;
• or any two Rg substituents attached to the same N atom, together with the N 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 Rh substituents;
• or any two Ri substituents attached to the same N atom, together with the N 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 Rh substituents;
• X1 is —CR10R11— or —NR7—
• X2 is N or CR6;
• R13 is H, CN, NRc4Rd4, OR1 or —C(O)NHRe, wherein R1 is C1-3 alkyl or C1-3 haloalkyl;
• R2 is H, halo, C1-3 alkyl, C1-3 haloalkyl, CN, or C1-3 alkoxy;
• R3 is H, halo, C1-3 alkyl, C1-3 haloalkyl, CN, or C1-3 alkoxy;
• R14 is H, CN, NRc4Rd4, OR4 or —C(O)NHRg, wherein R4 is C1-3 alkyl or C1-3 haloalkyl;
• R5 is H, halo, C1-3 alkyl, C1-3 haloalkyl, CN, or C1-3 alkoxy;
• R6 is selected from H, halo, CN, ORa4, SRa4, C(O)NRc4Rd4, OC(O)NRc4Rd4, NRc4Rd4, NRc4C(O)Rb4, NRc4C(O)ORa4, NRc4C(O)NRc4Rd4, NRc4S(O)Rb4, NRc4S(O)2Rb4, NRc4S(O)2NRc4Rd4, S(O)Rb4, S(O)NRc4Rd4, S(O)2Rb4, S(O)2NRc4Rd4, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C1-6 haloalkyl, phenyl, C3-6 cycloalkyl, a 5-6 membered heteroaryl having carbon and 1, 2, or 3 heteroatoms independently selected from N, O and S, and a 4-7 membered heterocycloalkyl having carbon and 1, 2, or 3 heteroatoms independently selected from N, O and S;
• wherein said C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, phenyl, C3-6 cycloalkyl, 5-6 membered heteroaryl, and 4-7 membered heterocycloalkyl groups of R6 are each optionally substituted with 1, 2, or 3 substituents independently selected from R10A;
• R7 is selected from H, C(O)NRc4Rd4, S(O)Rb4, S(O)NRc4Rd4, S(O)2Rb4, S(O)2NRc4Rd4, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C1-6 haloalkyl, phenyl, C3-6 cycloalkyl, 5- to 10-membered heteroaryl having carbon and 1, 2, or 3 heteroatoms independently selected from N, O and S, 4- to 10-membered heterocycloalkyl having carbon and 1, 2, or 3 heteroatoms independently selected from N, O and S, C6-10 aryl-C1-4 alkyl-, C3-10 cycloalkyl-C1-4 alkyl-, (5-10 membered heteroaryl)-C1-4 alkyl-, and (4-10 membered heterocycloalkyl)-C1-4 alkyl-;
• wherein said C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, phenyl, C3-6 cycloalkyl, 5- to 10-membered heteroaryl, 4-7 membered heterocycloalkyl, C6-10 aryl-C1-4 alkyl-, C3-10 cycloalkyl-C1-4 alkyl-, (5-10 membered heteroaryl)-C1-4 alkyl-, and (4-10 membered heterocycloalkyl)-C1-4 alkyl- groups of R7 are each optionally substituted with 1, 2, or 3 substituents independently selected from R10A;
• or two R10A substituents attached to the adjacent ring atoms of the aryl or heteroaryl ring of R7, taken together with the atoms to which they are attached, form a fused C5-6 cycloalkyl ring or a fused 5- to 6-membered heterocycloalkyl ring having 1-2 heteroatoms as ring members independently selected from O, N and S, wherein the nitrogen and sulfur atoms are each optionally oxidized and the fused C5-6 cycloalkyl ring or fused 5 to 6-membered heterocycloalkyl is optionally substituted with 1 or 2 independently selected R19 groups;
• R10 and R11 are each independently selected from H, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C1-6 haloalkyl, C6-10 aryl, C3-10 cycloalkyl, a 5-10 membered heteroaryl moiety having carbon and 1, 2, or 3 heteroatoms independently selected from N, O and S, and a 4-10 membered heterocycloalkyl moiety having carbon and 1, 2, or 3 heteroatoms independently selected from N, O and S;
• wherein said C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C6-10 aryl, C3-10 cycloalkyl, 5-10 membered heteroaryl, and 4-10 membered heterocycloalkyl groups of R10 and R11 are each optionally substituted with 1, 2, or 3, R10A;
• alternatively, R10 and R11 together with the carbon atom to which they are attached form a 3-, 4-, 5-, 6-, or 7-membered cycloalkyl group or a 4-, 5-, 6-, 7-, 8-, 9-, or 10-membered heterocycloalkyl group;
• wherein said 3-, 4-, 5-, 6-, or 7-membered cycloalkyl group and 4-, 5-, 6-, 7-, 8-, 9-, or 10-membered heterocycloalkyl group are each optionally substituted with 1, 2, 3 or 4 R10A;
• each R10A is independently selected from halo, CN, NO2, ORa4, SRa4, C(O)Rb4, C(O)NRc4Rd4, C(O)ORa4, OC(O)Rb4, OC(O)NRc4Rd4, C(═NRe4)NRc4Rd4, NRc4C(═NRe4)NRc4Rd4, NRc4Rd4, NRc4C(O)Rb4, NRc4C(O)ORa4, NRc4C(O)NRc4Rd4, NRc4S(O)Rb4, NRc4S(O)2Rb4, NRc4S(O)2NRc4Rd4, S(O)Rb4, S(O)NRc4Rd4, S(O)2Rb4, S(O)2NRc4Rd4, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C1-6 haloalkyl, phenyl, C3-6 cycloalkyl, a 5-6 membered heteroaryl moiety having carbon and 1, 2, or 3 heteroatoms independently selected from N, O and S, and a 4-7 membered heterocycloalkyl moiety having carbon and 1, 2, or 3 heteroatoms independently selected from N, O and S;
• wherein said C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, phenyl, C3-6 cycloalkyl, 5-6 membered heteroaryl, and 4-7 membered heterocycloalkyl group of R10A are each optionally substituted with 1, 2, or 3 substituents independently selected from R19;
• each Ra4, Rb4, Rc4, and Rd4 is independently selected from H, C1-4 alkyl, C2-4 alkenyl, C2-4 alkynyl, C1-4 haloalkyl, phenyl, C3-6 cycloalkyl, a 5-6 membered heteroaryl moiety having carbon and 1, 2, or 3 heteroatoms independently selected from N, O and S, and a 4-7 membered heterocycloalkyl moiety having carbon and 1, 2, or 3 heteroatoms independently selected from N, O and S;
• wherein said C1-4 alkyl, C2-4 alkenyl, C2-4 alkynyl, phenyl, C3-6 cycloalkyl, 5-6 membered heteroaryl, and 4-7 membered heterocycloalkyl group of Ra4, Rb4, Rc4, and Rd4 are each optionally substituted with 1, 2, or 3 substituents independently selected from R19;
• alternatively, Rc4 and Rd4 together with the nitrogen atom to which they are attached form a 4-, 5-, 6-, or 7-membered heterocycloalkyl group which is optionally substituted with 1, 2 or 3 substituents independently selected from R19;
• each Re4 is independently H or C1-4 alkyl;
• each R19 is independently selected from halo, CN, NO2, ORa9, SRa9, C(O)Rb9, C(O)NRc9Rd9, C(O)ORa9, OC(O)Rb9, OC(O)NRc9Rd9, NRc9Rd9, NRc9C(O)Rb9, NRc9C(O)ORa9, NRc9C(O)NRc9Rd9, NRc9S(O)Rb9, NRc9S(O)2Rb9, NRc9S(O)2NRc9Rd9, S(O)Rb9, S(O)NRc9Rd9, S(O)2Rb9, S(O)2NRc9Rd9, C1-4 alkyl, C2-4 alkenyl, C2-4 alkynyl, C3-6cycloalkyl, 4- to 6-membered heterocycloalkyl and C1-4 haloalkyl, wherein the C1-4 alkyl, C2-4 alkenyl, C2-4 alkynyl, C3-6-cycloalkyl, 4- to 6-membered heterocycloalkyl and C1-4 haloalkyl of R19 are each further optionally substituted with 1 or 2 R20 substituents independently selected from H, halo, CN, NO2, ORq, SRq, C(O)Rq, C(O)NRqRq, C(O)ORq, OC(O)Rq, OC(O)NRqRq, NRqRq, NRqC(O)Rq, NRqC(O)ORq, NRqC(O)NRqRq, NRqS(O)Rq, NRqS(O)2Rq, NRqS(O)2NRqRq, S(O)Rq, S(O)NRqRq, S(O)2Rq, S(O)2NRqRq, C1-4 alkyl, C2-4 alkenyl, C2-4 alkynyl, C3-6 cycloalkyl and C1-4 haloalkyl, wherein each Rq is independently H or C1-4alkyl;
• each Ra9, Rc9, and Rd9 is independently selected from H and C1-4 alkyl;
• each Rb9 is independently C1-4 alkyl;
• and
• the subscript n is 0, 1, 2 or 3.