4,6-disubstitued pyrimidines useful as kinase inhibitors

1. A compound of formula V:

wherein:

Ring A is an optionally substituted group selected from phenyl, an 8-10 membered bicyclic partially unsaturated or aryl ring, a 5-6 membered monocyclic heteroaryl ring having 1-4 heteroatoms independently selected from nitrogen, oxygen, or sulfur, or an 8-10 membered bicyclic heteroaryl ring having 1-5 heteroatoms independently selected from nitrogen, oxygen, or sulfur;

Ring B is phenyl, a 5-6 membered heteroaryl ring having 1-3 heteroatoms independently selected from N, O or S, a 5-6 membered saturated heterocyclic ring having 1-2 heteroatoms independently selected from N, O or S, or an 8-10 membered bicyclic partially unsaturated or aryl ring having 1-3 heteroatoms independently selected from N, O or S;

R 1′ is -L-Y′, wherein:

L is a covalent bond or a bivalent C 1-8 saturated or unsaturated, straight or branched, hydrocarbon chain, wherein one, two, or three methylene units of L are optionally and independently replaced by cyclopropylene, —NR—, —N(R)C(O)—, —C(O)N(R)—, —N(R)SO 2 —, —SO 2 N(R)—, —O—, —C(O)—, —OC(O)—, —C(O)O—, —S—, —SO—, —SO 2 —, —C(═S)—, —C(═NR)—, —N═N—,

or —C(═N 2 )—;

Y′ is a bivalent group selected from C 1-6 aliphatic optionally substituted with oxo, halogen, NO 2 , or CN, or a 3-10 membered monocyclic or bicyclic, saturated, partially unsaturated, or aryl ring having 0-3 heteroatoms independently selected from nitrogen, oxygen, or sulfur, and wherein said ring is substituted with 1-4 R e groups; and

each R e is independently selected from -Q-Z, oxo, NO 2 , halogen, CN, a suitable leaving group, or a C 1-6 aliphatic optionally substituted with oxo, halogen, NO 2 , or CN, wherein:

Q is a covalent bond or a bivalent C 1-6 saturated or unsaturated, straight or branched, hydrocarbon chain, wherein one or two methylene units of Q are optionally and independently replaced by —N(R)—, —S—, —O—, —C(O)—, —OC(O)—, —C(O)O—, —SO—, or —SO 2 —, —N(R)C(O)—, —C(O)N(R)—, —N(R)SO 2 —, or —SO 2 N(R)—; and

Z is hydrogen or C 1-6 aliphatic optionally substituted with oxo, halogen, NO 2 or CN;

R y is hydrogen, halogen, CN, lower alkyl, or lower haloalkyl;

W is a bivalent C 1-3 alkylene chain wherein one methylene unit of W is optionally replaced by —NR 2 —, —N(R 2 )C(O)—, —C(O)N(R 2 )—, —N(R 2 )SO 2 —, —SO 2 N(R 2 )—, —O—, —C(O)—, —OC(O)—, —C(O)O—, —S—, —SO— or —SO 2 —;

R 2 is hydrogen or optionally substituted C 1-6 aliphatic;

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

each R x is independently selected from —R, halogen, —OR, —CN, —NO 2 , —SO 2 R, —SOR, —C(O)R, —CO 2 R, —C(O)N(R) 2 , —NRC(O)R, —NRC(O)NR 2 , —NRSO 2 R, or —N(R) 2 ; or:

R x and R 1 are taken together with their intervening atoms to form a 5-7 membered saturated, partially unsaturated, or aryl ring having 0-3 heteroatoms independently selected from nitrogen, oxygen, or sulfur, wherein said ring is substituted with a warhead group, wherein the warhead group is -Q-Z, and said ring is further substituted with 0-3 groups independently selected from oxo, halogen, CN, or C 1-6 aliphatic; and

each R group is independently hydrogen or an optionally substituted group selected from C 1-6 aliphatic, phenyl, a 4-7 membered heterocylic ring having 1-2 heteroatoms independently selected from nitrogen, oxygen, or sulfur, or a 5-6 membered monocyclic heteroaryl ring having 1-4 heteroatoms independently selected from nitrogen, oxygen, or sulfur;

T is a bivalent tethering moiety selected from

R t is a detectable moiety selected from biotin and biotin sulfoxide.

2. A compound of formula VI or VII:

wherein:

Ring A is an optionally substituted group selected from phenyl, an 8-10 membered bicyclic partially unsaturated or aryl ring, a 5-6 membered monocyclic heteroaryl ring having 1-4 heteroatoms independently selected from nitrogen, oxygen, or sulfur, or an 8-10 membered bicyclic heteroaryl ring having 1-5 heteroatoms independently selected from nitrogen, oxygen, or sulfur;

Ring B is phenyl, a 5-6 membered heteroaryl ring having 1-3 heteratoms independently selected from N, O or S, a 5-6 membered saturated heterocyclic ring having 1-2 heteroatoms independently selected from N, O or S, or an 8-10 membered bicyclic partially unsaturated or aryl ring having 1-3 heteroatoms independently selected from N, O or S;

R 1 is -L-Y, wherein:

L is a covalent bond or a bivalent C 1-8 saturated or unsaturated, straight or branched, hydrocarbon chain, wherein one, two, or three methylene units of L are optionally and independently replaced by cyclopropylene, —NR—, —N(R)C(O)—, —C(O)N(R)—, —N(R)SO 2 —, —SO 2 N(R)—, —O—, —C(O)—, —OC(O)—, —C(O)O—, —S—, —SO—, —SO 2 —, —C(═S)—, —C(═NR)—, —N═N—, or —C(═N 2 )—;

Y is a group selected from C 1-6 aliphatic optionally substituted with oxo, halogen, NO 2 , or CN, or a 3-10 membered monocyclic or bicyclic, saturated, partially unsaturated, or aryl ring having 0-3 heteroatoms independently selected from nitrogen, oxygen, or sulfur, and wherein said ring is substituted with 1-4 R e groups; and

each R e is independently selected from -Q-Z, oxo, NO 2 , halogen, CN, a suitable leaving group, or a C 1-6 aliphatic optionally substituted with oxo, halogen, NO 2 , or CN, wherein:

Q is a covalent bond or a bivalent C 1-6 saturated or unsaturated, straight or branched, hydrocarbon chain, wherein one or two methylene units of Q are optionally and independently replaced by —N(R)—, —S—, —O—, —C(O)—, —OC(O)—, —C(O)O—, —SO—, or —SO 2 —, —N(R)C(O)—, —C(O)N(R)—, —N(R)SO 2 —, or —SO 2 N(R)—; and

Z is hydrogen or C 1-6 aliphatic optionally substituted with oxo, halogen, NO 2 or CN;

R y is hydrogen, halogen, CN, lower alkyl, or lower haloalkyl;

W is a bivalent C 1-3 alkylene chain wherein one methylene unit of W is optionally replaced by —NR 2 —, —N(R 2 )C(O)—, —C(O)N(R 2 )—, —N(R 2 )SO 2 —, —SO 2 N(R 2 )—, —O—, —C(O)—, —OC(O)—, —C(O)O—, —S—, —SO— or —SO 2 —;

R 2 is hydrogen or optionally substituted C 1-6 aliphatic, or:

R 2 and a substituent on Ring A are taken together with their intervening atoms to form a 4-6 membered saturated ring, or:

R 2 and R y are taken together with their intervening atoms to form a 4-7 membered carbocyclic ring;

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

each R x is independently selected from —R, halogen, —OR, —CN, —NO 2 , —SO 2 R, —SOR, —C(O)R, —CO 2 R, —C(O)N(R) 2 , —NRC(O)R, —NRC(O)NR 2 , —NRSO 2 R, or —N(R) 2 ; or:

R x and R 1 are taken together with their intervening atoms to form a 5-7 membered saturated, partially unsaturated, or aryl ring having 0-3 heteroatoms independently selected from nitrogen, oxygen, or sulfur, wherein said ring is substituted with a warhead group, wherein the warhead group is -Q-Z, and said ring is further substituted with 0-3 groups independently selected from oxo, halogen, CN, or C 1-6 aliphatic;

each R group is independently hydrogen or an optionally substituted group selected from C 1-6 aliphatic, phenyl, a 4-7 membered heterocylic ring having 1-2 heteroatoms independently selected from nitrogen, oxygen, or sulfur, or a 5-6 membered monocyclic heteroaryl ring having 1-4 heteroatoms independently selected from nitrogen, oxygen, or sulfur;

T is a bivalent tethering moiety selected from

R t is a detectable moiety selected from biotin and biotin sulfoxide.

3. The compound of claim 1 or 2 , wherein R t is biotin.

4. The compound of claim 1 or 2 , wherein R t is biotin sulfoxide.

5. A compound selected from the group consisting of: