Metalloenzyme inhibitor compounds
View Patent ↗Provided are compounds having metalloenzyme modulating activity, and methods of treating diseases, disorders or symptoms thereof mediated by such metalloenzymes.
1. A compound of Formula I:
or a pharmaceutically acceptable salt thereof; wherein
A is N or CR 5 ;
W is N or CR 6 ;
X is N or CR 6 ;
Y is N or CR 6 ;
Z is N or CR 6 ;
provided that no more than two of W, X, Y, and Z are N;
R 1 is halogen, cyano, acyl, alkyl, alkenyl, alkynyl, haloalkyl, alkoxy, haloalkoxy, cycloalkyl, cycloalkoxy, aryl, arylalkyl, heteroaryl, heteroarylalkyl, heterocycloalkyl, heterocycloalkylalkyl, NR a R b , NHSO 2 R c , CH 2 NR a R b , CH 2 NHSO 2 R d , CO 2 R e , COR f , S(O)R d , S(O) 2 R d , CH 2 OR f , or CR e R f OH, wherein any R 1 can be optionally substituted with 1-3 independent substituents R 7 ;
R 2 is hydrogen, halogen, cyano, alkyl, or haloalkyl;
or R 1 and R 2 together with the atoms to which they are attached form an aryl, heterocycloalkyl, or cycloalkyl ring;
R 3 is hydrogen, cyano, acyl, alkenyl, alkynyl, haloalkyl, alkoxy, haloalkoxy, cycloalkyl, cycloalkoxy, aryl, arylalkyl, heteroaryl, heteroarylalkyl, heterocycloalkyl, heterocycloalkylalkyl, NR a R b , NHSO 2 R c , CH 2 NR a R b , CH 2 NHSO 2 R d , CO 2 R e , COR f , CH 2 OR f , or CR e R f OH;
R 4 is alkyl, cycloalkyl, or haloalkyl;
R 5 is hydrogen, alkyl, haloalkyl, heteroalkyl, or cycloalkyl;
each occurrence of R 6 is, independently, hydrogen, halogen, cyano, haloalkyl, alkyl, cycloalkyl, alkoxy, haloalkyl, or carboxyl;
each occurrence of R 7 is, independently, halogen, alkyl, alkoxy, haloalkyl, carboxyl, aryl, aryl substituted with 1-3 independent halogen, —(CH 2 )nC(O)NR g R h , —S(O) 2 R i , —CO 2 R j , or NR g R h ,
each n is independently 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10;
each occurrence of R a , R b , R c , R d , R e , and R f is, independently, hydrogen, acyl, alkoxyalkyl, alkyl, alkenyl, alkynyl, heteroalkyl, haloalkyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, C(O)OC 1-6 alkyl, C(O)C 1-6 alkyl, a nitrogen protecting group when attached to a nitrogen atom, or an oxygen protecting group when attached to an oxygen atom; or R a and R b together with the atoms to which they are attached form a heterocycloalkyl ring; or R e and R f together with the atoms to which they are attached form a cycloalkyl ring; and
each occurrence of R g , R h , R i , and R j is, independently, hydrogen, acyl, alkyl, alkenyl, alkynyl, heteroalkyl, haloalkyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, C(O)OC 1-6 alkyl, C(O)C 1-6 alkyl, or R g and R h together with the atoms to which they are attached form a heterocycloalkyl ring.
2. The compound of claim 1 , or a pharmaceutically acceptable salt thereof, wherein R 1 is halogen, cyano, alkyl, alkenyl, alkynyl, haloalkyl, alkoxy, haloalkoxy, cycloalkyl, cycloalkoxy, aryl, NR a R b , NHSO 2 R c , CH 2 NR a R b , CH 2 NHSO 2 R d , COR f , or CR e R f OH; or R 1 and R 2 together with the atoms to which they are attached form an aryl ring.
3. The compound of claim 1 , or a pharmaceutically acceptable salt thereof, wherein R 1 is halogen, alkyl, alkenyl, haloalkyl, alkoxy, haloalkoxy, cycloalkoxy, aryl, NR a R b , CH 2 NHSO 2 R d , or CR e R f OH; or R 1 and R 2 together with the atoms to which they are attached form an aryl ring.
4. The compound of claim 1 , or a pharmaceutically acceptable salt thereof, wherein:
R 1 is halogen, alkyl, haloalkyl, CH 2 NHSO 2 R d , or NR a R b ; and
R a , R b , and R d are, independently, hydrogen, alkyl, or haloalkyl.
5. The compound of claim 1 , or a pharmaceutically acceptable salt thereof, wherein R 1 is haloalkyl.
6. The compound of claim 1 , or a pharmaceutically acceptable salt thereof, wherein R 2 is hydrogen or alkyl.
7. The compound of claim 1 , or a pharmaceutically acceptable salt thereof, wherein R 4 is alkyl or cycloalkyl.
8. The compound of claim 1 , or a pharmaceutically acceptable salt thereof, wherein R 4 is C 1-4 alkyl or C 3-5 cycloalkyl.
9. The compound of claim 1 , or a pharmaceutically acceptable salt thereof, wherein each R 6 is, independently, hydrogen, halogen, cyano, alkoxy, haloalkyl, or carboxyl.
10. The compound of claim 1 , or a pharmaceutically acceptable salt thereof, wherein each R 6 is, independently, hydrogen, halogen, or cyano.
11. The compound of claim 1 , or a pharmaceutically acceptable salt thereof, wherein A is CR 5 and R 5 is hydrogen, C 1-4 alkyl, or C 3-5 cycloalkyl.
12. The compound of claim 1 , or a pharmaceutically acceptable salt thereof, wherein A is N.
13. The compound of claim 1 , or a pharmaceutically acceptable salt thereof, wherein no more than one of W, X, Y, and Z is N.
14. The compound of claim 1 , or a pharmaceutically acceptable salt thereof, wherein W, X, Y, and Z are each independently CR 6 .
15. The compound of claim 1 , or a pharmaceutically acceptable salt thereof, wherein Z is N.
16. The compound of claim 1 , wherein the compound is of Formula I-a:
or a pharmaceutically acceptable salt thereof.
17. The compound of claim 15 , or a pharmaceutically acceptable salt thereof, wherein A is N.
18. The compound of claim 1 , wherein the compound is of Formula I-b:
or a pharmaceutically acceptable salt thereof.
19. The compound of claim 1 , wherein the compound is of Formula I-c:
or a pharmaceutically acceptable salt thereof.
20. The compound of claim 1 , wherein the compound is of Formula I-d:
or a pharmaceutically acceptable salt thereof.
21. The compound of claim 1 , wherein the compound is of Formula I-e:
or a pharmaceutically acceptable salt thereof.
22. The compound of claim 1 , wherein the compound is of Formula I-f:
or a pharmaceutically acceptable salt thereof.
23. The compound of claim 1 , wherein the compound is of Formula I-g:
or a pharmaceutically acceptable salt thereof.
24. The compound of claim 1 selected from the group consisting of:
5-(1-cyclopropyl-6-fluoro-1H-benzo[d]imidazol-2-yl)pyridazine-3-carbonitrile (2);
2-(6-chloropyridazin-4-yl)-1-cyclopropyl-6-fluoro-1H-benzo[d]imidazole (3);
1-cyclopropyl-6-fluoro-2-(6-vinylpyridazin-4-yl)-1H-benzo[d]imidazole (4);
methyl 5-(1-cyclopropyl-6-fluoro-1H-benzo[d]imidazol-2-yl)pyridazine-3-carboxylate (5);
1-cyclopropyl-2-(6-ethylpyridazin-4-yl)-6-fluoro-1H-benzo[d]imidazole (6);
1-(5-(1-cyclopropyl-6-fluoro-1H-benzo[d]imidazol-2-yl)pyridazin-3-yl)-2,2,2-trifluoroethan-1-ol (7);
N-((5-(1-cyclopropyl-6-fluoro-1H-benzo[d]imidazol-2-yl)pyridazin-3-yl)methyl)propionamide (8);
ethyl ((5-(1-cyclopropyl-6-fluoro-1H-benzo[d]imidazol-2-yl)pyridazin-3-yl)methyl)carbamate (9);
4-(5-(1-cyclopropyl-6-fluoro-1H-benzo[d]imidazol-2-yl)pyridazin-3-yl)morpholine (10);
1-cyclopropyl-6-fluoro-2-(6-(4-(4-fluorophenyl)piperazin-1-yl)pyridazin-4-yl)-1H-benzo[d]imidazole (11);
2-(5-(1-cyclopropyl-6-fluoro-1H-benzo[d]imidazol-2-yl)pyridazin-3-yl)propan-2-ol (12);
5-(1-cyclopropyl-6-fluoro-1H-benzo[d]imidazol-2-yl)-N-(tetrahydro-2H-pyran-4-yl)pyridazin-3-amine (13);
4-(1-cyclopropyl-6-fluoro-1H-benzo[d]imidazol-2-yl)cinnoline (14);
1-cyclopropyl-6-fluoro-2-(6-methylpyridazin-4-yl)-1H-benzo[d]imidazole (15);
N-(5-(1-cyclopropyl-6-fluoro-1H-benzo[d]imidazol-2-yl)pyridazin-3-yl)ethanesulfonamide (16);
2-(6-chloropyridazin-4-yl)-1-ethyl-1H-benzo[d]imidazole-6-carbonitrile (17);
2-(4-(5-(1-cyclopropyl-6-fluoro-1H-benzo[d]imidazol-2-yl)pyridazin-3-yl)piperazin-1-yl)-N-isopropylacetamide (18);
1-cyclopropyl-5,6-difluoro-2-(6-methylpyridazin-4-yl)-1H-benzo[d]imidazole (19);
2-(4-(5-(1-cyclopropyl-6-fluoro-1H-benzo[d]imidazol-2-yl)pyridazin-3-yl)piperazin-1-yl)-1-(pyrrolidin-1-yl)ethan-1-one (20);
5-(1-cyclopropyl-5,6-difluoro-1H-benzo[d]imidazol-2-yl)-N-methylpyridazin-3-amine (21);
2-(6-chloropyridazin-4-yl)-1-cyclopropyl-5,6-difluoro-1H-benzo[d]imidazole (22);
1-cyclopropyl-5,6-difluoro-2-(6-methoxypyridazin-4-yl)-1H-benzo[d]imidazole (23);
1-cyclopropyl-5,6-difluoro-2-(6-isopropoxypyridazin-4-yl)-1H-benzo[d]imidazole (24);
5-(1-cyclopropyl-5,6-difluoro-1H-benzo[d]imidazol-2-yl)-N,N-dimethylpyridazin-3-amine (25);
1-ethyl-6-fluoro-2-(6-methylpyridazin-4-yl)-1H-indole (26);
1-cyclopropyl-5,6-difluoro-2-(6-(2,2,2-trifluoroethoxy)pyridazin-4-yl)-1H-benzo[d]imidazole (27);
5-(1-cyclopropyl-5,6-difluoro-1H-benzo[d]imidazol-2-yl)-N-(2-methoxyethyl)pyridazin-3-amine (28);
1-cyclopropyl-2-(6-methoxypyridazin-4-yl)-1H-benzo[d]imidazole-6-carbonitrile (29);
1-cyclopropyl-6-fluoro-2-(6-methylpyridazin-4-yl)-1H-indole (30);
N-((5-(1-cyclopropyl-6-fluoro-1H-benzo[d]imidazol-2-yl)pyridazin-3-yl)methyl)ethanesulfonamide (31);
5-(1-cyclopropyl-5,6-difluoro-1H-benzo[d]imidazol-2-yl)-N-(2,2,2-trifluoroethyl)pyridazin-3-amine (32);
1-cyclopropyl-2-(6-ethylpyridazin-4-yl)-5,6-difluoro-1H-benzo[d]imidazole (33);
2-(6-chloropyridazin-4-yl)-1-cyclopropyl-1H-benzo[d]imidazole-6-carbonitrile (34);
1-cyclopropyl-2-(6-methylpyridazin-4-yl)-1H-benzo[d]imidazole-6-carbonitrile (35);
1-cyclopropyl-5,6-difluoro-2-(6-(4-methylpiperazin-1-yl)pyridazin-4-yl)-1H-benzo[d]imidazole (36);
1-(4-(5-(1-cyclopropyl-5,6-difluoro-1H-benzo[d]imidazol-2-yl)pyridazin-3-yl)piperazin-1-yl)ethan-1-one (37);
1-cyclopropyl-5,6-difluoro-2-(6-(4-(methylsulfonyl)piperazin-1-yl)pyridazin-4-yl)-1H-benzo[d]imidazole (38);
1 tert-butyl 4-(5-(1-cyclopropyl-5,6-difluoro-1H-benzo[d]imidazol-2-yl)pyridazin-3-yl)piperazine-1-carboxylate (39);
1-ethyl-2-(6-methoxypyridazin-4-yl)-1H-benzo[d]imidazole-6-carbonitrile (40);
1-ethyl-2-(6-ethylpyridazin-4-yl)-1H-benzo[d]imidazole-6-carbonitrile (41);
1-cyclopropyl-2-(6-(difluoromethyl)pyridazin-4-yl)-5,6-difluoro-1H-benzo[d]imidazole (42);
2-(6-cyclobutoxypyridazin-4-yl)-1-cyclopropyl-5,6-difluoro-1H-benzo[d]imidazole (43);
1-cyclopropyl-2-(6-(4,4-difluoropiperidin-1-yl)pyridazin-4-yl)-5,6-difluoro-1H-benzo[d]imidazole (44);
5-chloro-3-cyclopropyl-2-(6-methylpyridazin-4-yl)-3H-imidazo[4,5-b]pyridine (45);
1-cyclopropyl-2-(6-(3,3-difluoropyrrolidin-1-yl)pyridazin-4-yl)-5,6-difluoro-1H-benzo[d]imidazole (46);
1-(5-(1-cyclopropyl-5,6-difluoro-1H-benzo[d]imidazol-2-yl)pyridazin-3-yl)-2,2,2-trifluoroethan-1-ol (47);
1-(5-(1-cyclopropyl-5,6-difluoro-1H-benzo[d]imidazol-2-yl)pyridazin-3-yl)-N,N-dimethylpyrrolidin-3-amine (48);
1-cyclopropyl-5,6-difluoro-2-(6-(4-fluorophenyl)pyridazin-4-yl)-1H-benzo[d]imidazole (49);
1-cyclopropyl-5,6-difluoro-2-(6-((4-fluorophenyl)ethynyl)pyridazin-4-yl)-1H-benzo[d]imidazole (50);
1-cyclopropyl-5,6-difluoro-2-(6-isopropylpyridazin-4-yl)-1H-benzo[d]imidazole (51);
N-((5-(1-cyclopropyl-5,6-difluoro-1H-benzo[d]imidazol-2-yl)pyridazin-3-yl)methyl) ethanesulfonamide (52);
1-cyclopropyl-5,6-difluoro-2-(6-((1,1,1-trifluoropropan-2-yl)oxy)pyridazin-4-yl)-1H-benzo[d]imidazole (53);
3-cyclopropyl-2-(6-methylpyridazin-4-yl)-3H-imidazo[4,5-b]pyridine-5-carbonitrile (54);
1-cyclopropyl-2-(6-(2,2-difluoropropoxy)pyridazin-4-yl)-5,6-difluoro-1H-benzo[d]imidazole (57);
1-cyclopropyl-2-(6-cyclopropylpyridazin-4-yl)-5,6-difluoro-1H-benzo[d]imidazole (59);
2-(6-chloropyridazin-4-yl)-3-cyclopropyl-5-methoxy-3H-imidazo[4,5-b]pyridine (60);
1-cyclopropyl-5,6-difluoro-2-(6-(4-fluoro-2-methylphenyl)pyridazin-4-yl)-1H-benzo[d]imidazole (61);
1-cyclopropyl-2-(6-(2,4-difluorophenyl)pyridazin-4-yl)-5,6-difluoro-1H-benzo[d]imidazole (62);
1-cyclopropyl-2-(6-(3,4-difluorophenyl)pyridazin-4-yl)-5,6-difluoro-1H-benzo[d]imidazole (63);
1-(5-(1-cyclopropyl-5,6-difluoro-1H-benzo[d]imidazol-2-yl)pyridazin-3-yl)ethan-1-one (64);
2-(6-chloropyridazin-4-yl)-1-ethyl-5,6-difluoro-1H-benzo[d]imidazole (65);
1-cyclopropyl-2-(6-(difluoromethyl)pyridazin-4-yl)-1H-benzo[d]imidazole-6-carbonitrile (66);
2-(6-(difluoromethyl)pyridazin-4-yl)-1-ethyl-5,6-difluoro-1H-benzo[d]imidazole (67);
2-(6-chloropyridazin-4-yl)-1-ethyl-1H-benzo[d]imidazole-6-carbonitrile (68);
2-(6-(difluoromethyl)pyridazin-4-yl)-1-ethyl-1H-benzo[d]imidazole-6-carbonitrile (69);
1-cyclopropyl-2-(6-(1,1-difluoroethyl)pyridazin-4-yl)-5,6-difluoro-1H-benzo[d]imidazole (70);
1-cyclopropyl-5,6-difluoro-2-(6-(2,2,2-trifluoroethyl)pyridazin-4-yl)-1H-benzo[d]imidazole (71);
2-(6-Cyclopropylpyridazin-4-yl)-1-ethyl-5,6-difluoro-1H-benzo[d]imidazole (72);
5-Chloro-3-cyclopropyl-2-(6-(difluoromethyl)pyridazin-4-yl)-3H-imidazo[4,5-b]pyridine (73);
1-Cyclopropyl-2-(6-cyclopropylpyridazin-4-yl)-1H-benzo[d]imidazole-6-carbonitrile (75);
3-Cyclopropyl-2-(6-(difluoromethyl)pyridazin-4-yl)-3H-imidazo[4,5-b]pyridine-5-carbonitrile (76);
N-((5-(1-Cyclopropyl-5,6-difluoro-1H-benzo[d]imidazol-2-yl)pyridazin-3-yl)methyl)methane sulfonamide (77);
N-((5-(1-Cyclopropyl-5,6-difluoro-1H-benzo[d]imidazol-2-yl)pyridazin-3-yl)methyl)-N-methylmethanesulfonamide (78);
N-((5-(1-Cyclopropyl-5,6-difluoro-1H-benzo[d]imidazol-2-yl)pyridazin-3-yl)methyl)propane-2-sulfonamide (79);
1-Cyclopropyl-5,6-difluoro-2-(6-(methylsulfonyl)pyridazin-4-yl)-1H-benzo[d]imidazole (80);
1-Cyclopropyl-2-(6-(ethylsulfonyl)pyridazin-4-yl)-5,6-difluoro-1H-benzo[d]imidazole (81);
1-Cyclopropyl-5,6-difluoro-2-(6-(methylsulfinyl)pyridazin-4-yl)-1H-benzo[d]imidazole (82);
1-cyclopropyl-2-(6-(ethylsulfinyl)pyridazin-4-yl)-5,6-difluoro-1H-benzo[d]imidazole (83);
5-Chloro-3-cyclopropyl-2-(6-cyclopropylpyridazin-4-yl)-3H-imidazo[4,5-b]pyridine (84);
1-Cyclopropyl-5,6-difluoro-2-(6-(trifluoromethyl)pyridazin-4-yl)-1H-benzo[d]imidazole (85);
1-Cyclopropyl-2-(6-(trifluoromethyl)pyridazin-4-yl)-1H-benzo[d]imidazole-6-carbonitrile (86);
3-Cyclopropyl-2-(6-cyclopropylpyridazin-4-yl)-3H-imidazo[4,5-b]pyridine-5-carbonitrile (87);
2-((5-(1-Cyclopropyl-5,6-difluoro-1H-benzo[d]imidazol-2-yl)pyridazin-3-yl)methyl)isothiazolidine 1,1-dioxide (88);
3-Cyclopropyl-2-(6-(trifluoromethyl)pyridazin-4-yl)-3H-imidazo[4,5-b]pyridine-5-carbonitrile (89);
1-cyclopropyl-2-(6-methylpyridazin-4-yl)-6-(trifluoromethyl)-1H-benzo[d]imidazole (90);
and pharmaceutically acceptable salts thereof.
25. A pharmaceutical composition comprising a compound of claim 1 , or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable carrier.
26. The compound of claim 1 , or a pharmaceutically acceptable salt thereof, wherein R 3 is hydrogen.
27. A compound of Formula I:
or a pharmaceutically acceptable salt thereof; wherein
A is N or CR 5 ;
W is N or CR 6 ;
X is N or CR 6 ;
Y is N or CR 6 ;
Z is N or CR 6 ;
provided that no more than two of W, X, Y, and Z are N;
R 1 is halogen, cyano, acyl, alkyl, alkenyl, alkynyl, haloalkyl, alkoxy, haloalkoxy, cycloalkyl, cycloalkoxy, aryl, arylalkyl, heteroaryl, heteroarylalkyl, heterocycloalkyl, heterocycloalkylalkyl, NR a R b , NHSO 2 R c , CH 2 NR a R b , CR e R f NHSO 2 R d , OR f , SR f , CO 2 R e , COR f , S(O)R d , S(O) 2 R d , CH 2 OR f , or CR e R f OH, wherein any R 1 can be optionally substituted with 1-3 independent substituents R 7 ;
R 2 is hydrogen, halogen, cyano, alkyl, or haloalkyl;
or R 1 and R 2 together with the atoms to which they are attached form an aryl, heterocycloalkyl, or cycloalkyl ring;
R 3 is hydrogen, cyano, acyl, alkenyl, alkynyl, haloalkyl, alkoxy, haloalkoxy, cycloalkyl, cycloalkoxy, aryl, arylalkyl, heteroaryl, heteroarylalkyl, heterocycloalkyl, heterocycloalkylalkyl, NR a R b , NHSO 2 R c , CH 2 NR a R b , CH 2 NHSO 2 R d , CO 2 R e , COR f , CH 2 OR f , or CR e R f OH;
R 4 is alkyl, cycloalkyl, or haloalkyl;
R 5 is hydrogen, cyano, alkyl, haloalkyl, heteroalkyl, or cycloalkyl;
each occurrence of R 6 is, independently, hydrogen, halogen, cyano, haloalkyl, alkyl, cycloalkyl, alkoxy, haloalkyl, OR f , or carboxyl;
each occurrence of R 7 is, independently, halogen, alkyl, alkoxy, haloalkyl, carboxyl, cycloalkyl, aryl, aryl substituted with 1-3 independent halogen, —(CH 2 )nC(O)NR g R h , —S(O) 2 R i , —CO 2 R j , or NR g R h ,
each n is independently 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10;
each occurrence of R a , R b , R c , R d , R e , and R f is, independently, hydrogen, acyl, alkoxyalkyl, alkyl, alkenyl, alkynyl, heteroalkyl, haloalkyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, C(O)OC 1-6 alkyl, C(O)C 1-6 alkyl, a nitrogen protecting group when attached to a nitrogen atom, or an oxygen protecting group when attached to an oxygen atom; or R a and R b together with the atoms to which they are attached form a heterocycloalkyl ring; or R e and R f together with the atoms to which they are attached form a cycloalkyl ring; and
each occurrence of R g , R h , R i , and R j is, independently, hydrogen, acyl, alkyl, alkenyl, alkynyl, heteroalkyl, haloalkyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, C(O)OC 1-6 alkyl, C(O)C 1-6 alkyl, or R g and R h together with the atoms to which they are attached form a heterocycloalkyl ring.
28. The compound of claim 27 , or a pharmaceutically acceptable salt thereof, wherein R 1 is halogen, cyano, alkyl, alkenyl, alkynyl, haloalkyl, alkoxy, haloalkoxy, cycloalkyl, cycloalkoxy, aryl, NR a R b , NHSO 2 R c , CH 2 NR a R b , CR e R f NHSO 2 R d , SR f , COR f , or CR e R f OH; or R 1 and R 2 together with the atoms to which they are attached form an aryl or cycloalkyl ring.
29. The compound of claim 27 , or a pharmaceutically acceptable salt thereof, wherein R 1 is halogen, alkyl, alkenyl, haloalkyl, alkoxy, haloalkoxy, cycloalkoxy, aryl, NR a R b , CR e R f NHSO 2 R d , SR f , or CR e R f OH; or R 1 and R 2 together with the atoms to which they are attached form an aryl or cycloalkyl ring.
30. The compound of claim 27 , or a pharmaceutically acceptable salt thereof, wherein:
R 1 is halogen, alkyl, haloalkyl, CR e R f NHSO 2 R d , SR f , or NR a R b ; and
R a , R b , R d , R e , and R f are, independently, hydrogen, alkyl, or haloalkyl.
31. The compound of claim 27 selected from the group consisting of:
N-(1-(5-(1-Cyclopropyl-5,6-difluoro-1H-benzo[d]imidazol-2-yl)pyridazin-3-yl)ethyl) methanesulfonamide (91);
1-Cyclopropyl-5,6-difluoro-2-(6-(fluoromethyl)pyridazin-4-yl)-1H-benzo[d]imidazole (92);
1-Cyclopropyl-2-(5,6-dimethylpyridazin-4-yl)-5,6-difluoro-1H-benzo[d]imidazole (93);
(5-(1-Cyclopropyl-5,6-difluoro-1H-benzo[d]imidazol-2-yl)pyridazin-3-yl)methanol (94);
5-Chloro-3-cyclopropyl-2-(6-(trifluoromethyl)pyridazin-4-yl)-3H-imidazo[4,5-b]pyridine (95);
N-(1-(5-(1-Cyclopropyl-5,6-difluoro-1H-benzo[d]imidazol-2-yl)pyridazin-3-yl)ethyl) ethanesulfonamide (96);
2-(6-Butylpyridazin-4-yl)-1-cyclopropyl-5,6-difluoro-1H-benzo[d]imidazole (97);
1-Cyclopropyl-6-methyl-2-(6-methylpyridazin-4-yl)-1H-benzo[d]imidazole (98);
1-Cyclopropyl-2-(6-(difluoromethyl)pyridazin-4-yl)-6,7-difluoro-1H-benzo[d]imidazole (101);
5-(1-Cyclopropyl-5,6-difluoro-1H-benzo[d]imidazol-2-yl)pyridazine-3-thiol (102);
2-(6-(Difluoromethyl)pyridazin-4-yl)-5,6-difluoro-1-methyl-1H-benzo[d]imidazole (104);
2-(6-(Difluoromethyl)pyridazin-4-yl)-5,6-difluoro-1-propyl-1H-benzo[d]imidazole (105);
4-(1-Cyclopropyl-5,6-difluoro-1H-benzo[d]imidazol-2-yl)-5,6,7,8-tetrahydrocinnoline (106);
1-Cyclopropyl-2-(6-methylpyridazin-4-yl)-1H-benzo[d]imidazole-5-carbonitrile (Ex. 107);
1-Cyclobutyl-5,6-difluoro-2-(6-methylpyridazin-4-yl)-1H-benzo[d]imidazole (108);
1-Cyclopropyl-2-(6-(difluoromethyl)pyridazin-4-yl)-1H-benzo[d]imidazol-6-ol (109);
5-(1-Cyclopropyl-5,6-difluoro-1H-benzo[d]imidazol-2-yl)pyridazine-3-carboxylic acid (110);
1-Cyclopropyl-7-fluoro-2-(6-methylpyridazin-4-yl)-1H-benzo[d]imidazole (111);
5-Chloro-1-cyclopropyl-2-(6-methylpyridazin-4-yl)-1H-benzo[d]imidazole (112);
4-Chloro-1-cyclopropyl-2-(6-methylpyridazin-4-yl)-1H-benzo[d]imidazole (113);
1-Cyclopropyl-5,6-difluoro-2-(6-(methoxymethyl)pyridazin-4-yl)-1H-benzo[d]imidazole (114);
Methyl 5-(6-cyano-1-cyclopropyl-1H-benzo[d]imidazol-2-yl)pyridazine-3-carboxylate (115);
5-(6-Cyano-1-cyclopropyl-1H-benzo[d]imidazol-2-yl)pyridazine-3-carboxylic acid (116);
1-Cyclopropyl-2-(6-(cyclopropylmethoxy)pyridazin-4-yl)-5,6-difluoro-1H-benzo[d]imidazole (117);
1-Cyclopropyl-2-(6-(2,2,2-trifluoroethoxy)pyridazin-4-yl)-1H-benzo[d]imidazole-6-carbonitrile (118);
6-Chloro-1-cyclopropyl-2-(6-(difluoromethyl)pyridazin-4-yl)-5-fluoro-1H-benzo[d]imidazole (119);
1-Cyclopropyl-2-(6-(difluoromethyl)pyridazin-4-yl)-5-fluoro-1H-benzo[d]imidazole-6-carbonitrile (120);
4-(1-Cyclopropyl-5,6-difluoro-1H-benzo[d]imidazol-2-yl)-6,7-dihydro-5H-cyclopenta[c]pyridazine (121);
1-Cyclopropyl-2-(6-(difluoromethyl)pyridazin-4-yl)-6-fluoro-1H-benzo[d]imidazole (122);
1-Cyclopropyl-5,6-difluoro-2-(6-(methylthio)pyridazin-4-yl)-1H-benzo[d]imidazole (123);
1-Cyclopropyl-5,6-difluoro-2-(6-(isopropylthio)pyridazin-4-yl)-1H-benzo[d]imidazole (124);
1-Cyclopropyl-2-(6-((difluoromethyl)thio)pyridazin-4-yl)-5,6-difluoro-1H-benzo[d]imidazole (125);
5-(1-Cyclopropyl-5,6-difluoro-1H-benzo[d]imidazol-2-yl)pyridazin-3-ol (126);
1-Cyclopropyl-2-(6-(difluoromethoxy)pyridazin-4-yl)-5,6-difluoro-1H-benzo[d]imidazole (127);
1-(5-(1-Cyclopropyl-5,6-difluoro-1H-benzo[d]imidazol-2-yl)pyridazin-3-yl)ethan-1-ol (128);
1-Cyclopropyl-5,6-difluoro-2-(6-(1-fluoroethyl)pyridazin-4-yl)-1H-benzo[d]imidazole (129);
1-Cyclopropyl-5,6-difluoro-2-(6-((trifluoromethyl)thio)pyridazin-4-yl)-1H-benzo[d]imidazole (130)
1-Cyclopropyl-2-(6-(difluoromethyl)pyridazin-4-yl)-1H-benzo[d]imidazole (131);
2-(6-(Difluoromethyl)pyridazin-4-yl)-1-propyl-1H-benzo[d]imidazole (132);
1-Cyclopropyl-2-(6-(difluoromethoxy)pyridazin-4-yl)-1H-benzo[d]imidazole-6-carbonitrile (133);
1-Cyclopropyl-2-(6-(difluoromethyl)pyridazin-4-yl)-1H-indole-3-carbonitrile (134);
2-(6-(Difluoromethyl)pyridazin-4-yl)-1-methyl-1H-indole-3-carbonitrile (135);
1-Cyclopropyl-2-(6-(1-fluoroethyl)pyridazin-4-yl)-1H-benzo[d]imidazole-6-carbonitrile (136); and pharmaceutically acceptable salts thereof.
32. The compound of claim 27 , or a pharmaceutically acceptable salt thereof, wherein R 3 is hydrogen.
33. A pharmaceutical composition comprising a compound of claim 26 , or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable carrier.
34. A compound selected from the group consisting of:
1-cyclopropyl-2-(6-(difluoromethyl)pyridazin-4-yl)-5,6-difluoro-1H-benzo[d]imidazole (42);
3-Cyclopropyl-2-(6-(difluoromethyl)pyridazin-4-yl)-3H-imidazo[4,5-b]pyridine-5-carbonitrile (76);
1-Cyclopropyl-2-(6-(trifluoromethyl)pyridazin-4-yl)-1H-benzo[d]imidazole-6-carbonitrile (86); and pharmaceutically acceptable salts thereof.
35. A pharmaceutical composition comprising a compound of claim 34 , or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable carrier.