PRMT5 inhibitors containing a dihydro- or tetrahydroisoquinoline and uses thereof

1. A compound selected from the group consisting of:

and pharmaceutically acceptable salts thereof.

2. A pharmaceutical composition comprising a compound of claim 1 , or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable excipient.

3. A compound of Formula (A-9):

or a pharmaceutically acceptable salt thereof,

wherein:

R 12 is halogen or C 1-3 alkyl optionally substituted by halogen, and R 13 is hydrogen, halogen, —NR A1 R A2 , C 1-3 alkyl optionally substituted by halogen, or —OR 1 ; or

R 12 is hydrogen, halogen or C 1-3 alkyl optionally substituted by halogen, and R 13 is hydrogen, halogen, —NR A1 R A2 , or C 1-3 alkyl optionally substituted by halogen;

R A1 and R A2 are each independently hydrogen, optionally substituted C 1-3 alkyl, a nitrogen protecting group, or R A1 and R A2 are taken together with the intervening nitrogen atom to form an optionally substituted 3-6 membered heterocyclic ring;

R 1 is hydrogen, R z , or —C(O)R z , wherein R z is C 1-6 alkyl;

R 2 and R 3 are each independently hydrogen or C 1-6 alkyl;

each R A is independently selected from the group consisting of hydrogen, optionally substituted aliphatic, optionally substituted carbocyclyl, optionally substituted heterocyclyl, optionally substituted aryl, and optionally substituted heteroaryl;

each R B is independently selected from the group consisting of hydrogen, optionally substituted aliphatic, optionally substituted carbocyclyl, optionally substituted heterocyclyl, optionally substituted aryl, and optionally substituted heteroaryl, or two R B groups are taken together with their intervening atoms to form an optionally substituted heterocyclic ring;

Cy is a monocyclic or bicyclic, aromatic ring having 0-4 heteroatoms independently selected from nitrogen, oxygen, and sulfur, wherein Cy is substituted with 0, 1, 2, 3, or 4 R y groups;

each R y is independently selected from the group consisting of halo, —CN, —NO 2 , optionally substituted aliphatic, optionally substituted carbocyclyl, optionally substituted aryl, optionally substituted heterocyclyl, optionally substituted heteroaryl, —OR A , —N(R B ) 2 , —SR A , —C(═O)R A , —C(O)OR A , —C(O)SR A , —C(O)N(R B ) 2 , —C(O)N(R B )N(R B ) 2 , —OC(O)R A , —OC(O)N(R B ) 2 , —NR B C(O)R A , —NR B C(O)N(R B ) 2 , —NR B C(O)N(R B )N(R B ) 2 , —NR B C(O)OR A , —SC(O)R A , —C(═NR B )R A , —C(═NNR B )R A , —C(═NOR A )R A , —C(═NR B )N(R B ) 2 , —NR B C(═NR B )R B , —C(═S)R A , —C(═S)N(R B ) 2 , —NR B C(═S)R A , —S(O)R A , —OS(O) 2 R A , —SO 2 R A , —NR B SO 2 R A , and —SO 2 N(R B ) 2 ; or an R y group may be optionally taken together with R 2 or R 3 to form an optionally substituted 5- to 6-membered carbocyclic or heterocyclic ring fused to Cy;

each R x is independently selected from halo;

n is 0, 1, or 2;

wherein each instance of aliphatic is independently an alkyl, alkenyl, alkynyl, cycloalkyl, or cycloalkenyl group; and

each instance of optionally substituted is independently unsubstituted or substituted, and each instance of substituted is, when on a carbon atom, independently halogen, —CN, —NO 2 , —N 3 , —SO 2 H, —SO 3 H, —OH, —OR aa , —ON(R bb ) 2 , —N(R bb ) 2 , —N(R bb ) 3 + X − , —N(OR cc )R bb , —SH, —SR aa , —SSR cc , —C(═O)R aa , —CO 2 H, —CHO, —C(OR cc ) 2 , —CO 2 R aa , —OC(═O)R aa , —OCO 2 R aa , —C(═O)N(R bb ) 2 , —OC(═O)N(R bb ) 2 , —NR bb C(═O)R aa , —NR bb CO 2 R aa , —NR bb C(═O)N(R bb ) 2 , —C(═NR bb )R aa , —C(═NR bb )OR aa , —OC(═NR bb )R aa , —OC(═NR bb )OR aa , —C(═NR bb )N(R bb ) 2 , —OC(═NR bb )N(R bb ) 2 , —NR bb C(═NR bb )N(R bb ) 2 , —C(═O)NR bb SO 2 R aa , —NR bb SO 2 R aa , —SO 2 N(R bb ) 2 , —SO 2 R aa , C 1-10 alkyl, C 1-10 perhaloalkyl, C 2-10 alkenyl, C 2-10 alkynyl, C 3-10 carbocyclyl, 3-14 membered heterocyclyl, C 6-14 aryl, or 5-14 membered heteroaryl, wherein each alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 R dd groups, or two geminal hydrogens on a carbon atom are replaced with the group ═O;

each instance of substituted is, when on a nitrogen, independently —OH, —OR aa , —N(R cc ) 2 , —CN, —C(═O)R aa , —C(═O)N(R cc ) 2 , —CO 2 R aa , —SO 2 R aa , —C(═NR bb )R aa , —C(═NR cc )OR aa , —C(═NR cc )N(R cc ) 2 , —SO 2 N(R cc ) 2 , —SO 2 R cc , C 1-10 alkyl, C 1-10 perhaloalkyl, C 2-10 alkenyl, C 2-10 alkynyl, C 3-10 carbocyclyl, 3-14 membered heterocyclyl, C 6-14 aryl, or 5-14 membered heteroaryl, or two R cc groups attached to a nitrogen atom are joined to form a 3-14 membered heterocyclyl or 5-14 membered heteroaryl ring, wherein each alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 R dd groups;

each instance of R aa is, independently, C 1-10 alkyl, C 1-10 perhaloalkyl, C 2-10 alkenyl, C 2-10 alkynyl, C 3-10 carbocyclyl, 3-14 membered heterocyclyl, C 6-14 aryl, or 5-14 membered heteroaryl, or two R aa groups are joined to form a 3-14 membered heterocyclyl or 5-14 membered heteroaryl ring, wherein each alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 R dd groups;

each instance of R bb is, independently, hydrogen, —OH, —OR aa , —N(R cc ) 2 , —CN, —C(═O)R aa , —C(═O)N(R cc ) 2 , —CO 2 R aa , —SO 2 R aa , —C(═NR cc )OR aa , —C(═NR cc )N(R cc ) 2 , —SO 2 N(R cc ) 2 , —SO 2 R cc , C 1-10 alkyl, C 1-10 perhaloalkyl, C 2-10 alkenyl, C 2-10 alkynyl, C 3-10 carbocyclyl, 3-14 membered heterocyclyl, C 6-14 aryl, or 5-14 membered heteroaryl, or two R bb groups are joined to form a 3-14 membered heterocyclyl or 5-14 membered heteroaryl ring, wherein each alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 R dd groups;

each instance of R cc is, independently, hydrogen, C 1-10 alkyl, C 1-10 perhaloalkyl, C 2-10 alkenyl, C 2-10 alkynyl, C 3-10 carbocyclyl, 3-14 membered heterocyclyl, C 6-14 aryl, or 5-14 membered heteroaryl, or two R cc groups are joined to form a 3-14 membered heterocyclyl or 5-14 membered heteroaryl ring, wherein each alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 R dd groups;

each instance of R dd is, independently, halogen, —CN, —NO 2 , —N 3 , —SO 2 H, —SO 3 H, —OH, —OR ee , —ON(R ff ) 2 , —N(R ff ) 2 , —N(R ff ) 3 + X − , —N(OR ee )R ff , —SH, —SR ee , —SSR ee , —C(═O)R ee , —CO 2 H, —CO 2 R ee , —OC(═O)R ee , —OCO 2 R ee , —C(═O)N(R ff ) 2 , —OC(═O)N(R ff ) 2 , —NR ff C(═O)R ee , —NR ff CO 2 R ee , —NR ff C(═O)N(R ff ) 2 , —C(═NR ff )OR ee , —OC(═NR ff )R ee , —OC(═NR ff )OR ee , —C(═NR ff )N(R ff ) 2 , —OC(═NR ff )N(R ff ) 2 , —NR ff C(═NR ff )N(R ff ) 2 , —NR ff SO 2 R ee , —SO 2 N(R ff ) 2 , —SO 2 R ee , C 1-6 alkyl, C 1-6 perhaloalkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 3-10 carbocyclyl, 3-10 membered heterocyclyl, C 6-10 aryl, or 5-10 membered heteroaryl, wherein each alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 R gg groups, or two geminal R dd substituents are joined to form ═O;

each instance of R ee is, independently, C 1-6 alkyl, C 1-6 perhaloalkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 3-10 carbocyclyl, C 6-10 aryl, 3-10 membered heterocyclyl, or 3-10 membered heteroaryl, wherein each alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 R gg groups;

each instance of R ff is, independently, hydrogen, C 1-6 alkyl, C 1-6 perhaloalkyl, C 2-6 alkenyl, C2-6 alkynyl, C 3-10 carbocyclyl, 3-10 membered heterocyclyl, C 6-10 aryl, or 5-10 membered heteroaryl, or two R ff groups are joined to form a 3-14 membered heterocyclyl or 5-14 membered heteroaryl ring, wherein each alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 R gg groups; and

each instance of R gg is, independently, halogen, —CN, —NO 2 , —N 3 , —SO 2 H, —SO 3 H, —OH, —OC 1-6 alkyl, —O(C 1-6 alkyl) 2 , —N(C 1-6 alkyl) 2 , —N(C 1-6 alkyl) 3 + X − , —NH(C 1-6 alkyl) 2 + X − , —NH 2 (C 1-6 alkyl) + X − , —NH 3 + X − , —N(OC 1-6 alkyl)(C 1-6 alkyl), —N(OH)(C 1-6 alkyl), —NH(OH), —SH, —SC 1-6 alkyl, —SS(C 1-6 alkyl), —C(═O)(C 1-6 alkyl), —CO 2 H, —CO 2 (C 1-6 alkyl), —OC(═O)(C 1-6 alkyl), —OCO 2 (C 1-6 alkyl), —C(═O)NH 2 , —C(═O)N(C 1-6 alkyl) 2 , —OC(═O)NH(C 1-6 alkyl), —NHC(═O)(C 1-6 alkyl), —N(C 1-6 alkyl)C(═O)(C 1-6 alkyl), —NHCO 2 (C 1-6 alkyl), —NHC(═O)N(C 1-6 alkyl) 2 , —NHC(═O)NH(C 1-6 alkyl), —NHC(═O)NH 2 , —C(═NH)O(C 1-6 alkyl), —OC(═NH)(C 1-6 alkyl), —OC(═NH)OC 1-6 alkyl, —C(═NH)N(C 1-6 alkyl) 2 , —C(═NH)NH(C 1-6 alkyl), —C(═NH)NH 2 , —OC(═NH)N(C 1-6 alkyl) 2 , —OC(NH)NH(C 1-6 alkyl), —OC(NH)NH 2 , —NHC(NH)N(C 1-6 alkyl) 2 , —NHC(═NH)NH 2 , —NHSO 2 (C 1-6 alkyl), —SO 2 N(C 1-6 alkyl) 2 , —SO 2 NH(C 1-6 alkyl), —SO 2 NH 2 , —SO 2 C 1-6 alkyl, C 1-6 alkyl, C 1-6 perhaloalkyl, C2 alkenyl, C 2-6 alkynyl, C 3-10 carbocyclyl, C 6-10 aryl, 3-10 membered heterocyclyl, or 5-10 membered heteroaryl, or two geminal R gg substituents are joined to form ═O; wherein X − is a counterion.

4. The compound of claim 3 , wherein R 12 is hydrogen, and R 13 is —NR A1 R A2 .

5. The compound of claim 3 , wherein R 12 is hydrogen, and R 13 is C 1-3 alkyl optionally substituted by halogen.

6. The compound of claim 3 , wherein n is 0.

7. The compound of claim 3 , wherein R 2 and R 3 are each hydrogen.

8. The compound of claim 3 , wherein Cy is phenyl substituted with 0, 1, or 2 R y groups.

9. The compound of claim 3 , wherein Cy is a bicyclic aromatic ring having 0-4 heteroatoms independently selected from nitrogen, oxygen, and sulfur, wherein Cy is substituted with 0, 1, 2, 3, or 4 R y groups.

10. The compound of claim 3 , wherein Cy is substituted with 1 or 2 R y groups, and at least one R y is halo, —CN, —NO 2 , optionally substituted aliphatic, optionally substituted carbocyclyl, optionally substituted aryl, optionally substituted heterocyclyl, optionally substituted heteroaryl, —OR A , —N(R B ) 2 , —C(O)N(R B ) 2 , —NR B C(O)R A , —S(O)R A , —NR B SO 2 R A , or —SO 2 N(R B ) 2 .

11. The compound of claim 3 , selected from the group consisting of:

and pharmaceutically acceptable salts thereof.

12. A pharmaceutical composition comprising a compound of claim 3 , or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable excipient.

13. A pharmaceutical composition comprising a compound of claim 11 , or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable excipient.