Bicyclic heterocyclyl derivatives as IRAK4 inhibitors
The present invention provides bicyclic heterocyclyl kinase enzyme inhibitor compounds of formula (I), which are therapeutically useful as kinase inhibitors, particularly IRAK4 inhibitors. wherein A, Y, Z, X 1 , X 2 , X 3 , R 1 , R 3 , ‘m’, ‘n’ and ‘p’ have the meanings given in the specification and pharmaceutically acceptable salt or stereoisomer thereof that are useful in the treatment and prevention of diseases or disorder, in particular their use in diseases or disorder mediated by kinase enzyme, particularly IRAK4 enzyme. The present invention also provides pharmaceutical composition comprising at least one of the compounds of compound of formula (I) together with a pharmaceutically acceptable carrier, diluent or excipient therefor.
1. A method of making a compound of formula (I) or a pharmaceutically acceptable salt thereof, according to the following scheme:
wherein:
M is
L is NH 2 ;
X 1 and X 3 independently are CH or N; X 2 is CR 2 or N, provided one and not more than one of X 1 , X 2 or X 3 is N;
A is O or S;
Y is —CH 2 — or O;
Z is aryl or heterocyclyl;
R 1 , at each occurrence, is independently halo or optionally substituted heterocyclyl, wherein the substituent is alkyl, alkoxy, aminoalkyl, halo, hydroxyl, hydroxyalkyl or —NR a R b ;
R 2 is hydrogen, optionally substituted cycloalkyl, optionally substituted aryl, optionally substituted heterocyclyl or —NR a R b , wherein the substituent is alkyl, amino, halo or hydroxyl;
R 3 , at each occurrence, is alkyl or hydroxyl;
R a and R b are independently hydrogen, alkyl, acyl, or heterocyclyl;
m and n are independently 0, 1 or 2;
p is 0 or 1;
Q 1 is N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide (EDCI) or a salt thereof, 1-[bis(dimethylamino)methylene]-1H-1,2,3-triazolo[4,5-b]pyridinium 3-oxide hexafluorophosphate (HATU);
Q 2 is hydroxybenzotriazole (HOBT) or is absent;
B is diisopropylethylamine (DIPEA) or trimethylamine (TEA); and
Sv is dimethylformamide.
2. The method of claim 1 , wherein
A is O or S;
Y is —CH 2 — or O;
Z is aryl or heterocyclyl;
R 1 , at each occurrence, is independently halo or optionally substituted heterocyclyl, wherein the substituent is alkyl, aminoalkyl, halo, or NR a R b ; where R a and R b are independently hydrogen, alkyl, or heterocyclyl;
R 2 is hydrogen, cycloalkyl, heterocyclyl or NR a R b ;
m is 0; and
n is 1.
3. The method of claim 1 , wherein
A is O or S;
Y is —CH 2 — or O;
Z is aryl or heterocyclyl;
R 1 , at each occurrence, is independently halo or optionally substituted heterocyclyl; wherein the substituent is alkyl, alkoxy, aminoalkyl, halo, hydroxyl or NR a R b ; where R a and R b are independently hydrogen, alkyl, or heterocyclyl;
R 2 is hydrogen, cycloalkyl, optionally substituted heterocyclyl or NR a R b , where the substituent is selected from amino, halo or hydroxyl;
‘m’ and ‘n’ are independently 0, 1 or 2; and
‘p’ is 0 or 1.
4. The method of claim 1 , wherein the group
5. The method of claim 1 , wherein the compound of formula (I) is a compound of formula (IA):
or a pharmaceutically acceptable salt thereof.
6. The method of claim 5 , wherein
A is O or S;
Y is —CH 2 — or O;
R 1 , at each occurrence, is independently halo or optionally substituted heterocyclyl, wherein the substituent is alkyl, aminoalkyl, halo, or NR a R b ; where R a and R b are independently hydrogen, alkyl, or heterocyclyl;
R 2 is hydrogen, cycloalkyl, heterocyclyl or NR a R b ;
m is 0; and
n is 1.
7. The method of claim 5 , wherein
A is O or S;
Y is —CH 2 — or O;
R 1 , at each occurrence, is independently halo or optionally substituted heterocyclyl; wherein the substituent is alkyl, alkoxy, aminoalkyl, halo, hydroxyl or NR a R b ; where R a and R b are independently hydrogen, alkyl, or heterocyclyl;
R 2 is hydrogen, cycloalkyl, optionally substituted heterocyclyl or NR a R b , where the substituent is selected from amino, halo or hydroxyl; and
‘m’ and ‘n’ are independently 0, 1 or 2.
8. The method of claim 1 , wherein the compound of formula (I) a compound of formula (IB):
or a pharmaceutically acceptable salt thereof.
9. The method of claim 8 , wherein
A is O or S;
Y is —CH 2 — or O;
R 1 , at each occurrence, is independently halo or optionally substituted heterocyclyl, wherein the substituent is alkyl, aminoalkyl, halo, or NR a R b ; where R a and R b are independently hydrogen, alkyl, or heterocyclyl;
R 2 is hydrogen, cycloalkyl, heterocyclyl or NR a R b ; and
n is 1.
10. The method of claim 8 , wherein
A is O or S;
Y is —CH 2 — or O;
R 1 , at each occurrence, is independently halo or optionally substituted heterocyclyl; wherein the substituent is alkyl, alkoxy, aminoalkyl, halo, hydroxyl or NR a R b ; where R a and R b are independently hydrogen, alkyl, or heterocyclyl; and
R 2 is hydrogen, cycloalkyl, optionally substituted heterocyclyl or NR a R b , where the substituent is selected from amino, halo or hydroxyl.
11. The method of claim 1 , wherein the compound of formula (I) is a compound of formula (IC):
or a pharmaceutically acceptable salt thereof.
12. The method of claim 1 , wherein
Q 1 is EDCI or a salt thereof; and
Q 2 is HOBT.
13. The method of claim 1 , wherein
Q 1 is HATU; and
Q 2 is absent.
14. The method of claim 1 , wherein the method further comprises a purification step.
15. The method of claim 14 , wherein the purification step comprises column chromatography, preparative thin layer chromatography, or high performance liquid chromatography.
16. The method of claim 1 , wherein the method further comprises a deprotection step.
17. The method of claim 16 , wherein the deprotection step comprises contacting the reaction mixture with a deprotection agent, wherein the deprotection agent is methanolic hydrochloric acid or tetrabutylammonium fluoride (TBAF).
18. The method of claim 1 , wherein the compound of formula (I) is selected from:
Example No
IUPAC name
1.
6′-amino-N-(2-morpholinooxazolo[4,5-b]pyridin-6-yl)-[2,3′-bipyridine]-6-
carboxamide;
2.
6′-amino-N-(5-cyclopropyl-2-morpholinooxazolo[4,5-b]pyridin-6-yl)-[2,3′-
bipyridine]-6-carboxamide hydrochloride;
3.
N-(5-cyclopropyl-2-morpholinooxazolo[4,5-b]pyridin-6-yl)-2-(2-methylpyridin-4-
yl)oxazole-4-carboxamide hydrochloride;
4.
N-(2,5-di(piperidin-1-yl)oxazolo[4,5-b]pyridin-6-yl)-6-(1H-pyrazol-4-
yl)picolinamide hydrochloride;
5.
N-(2,5-di(piperidin-1-yl)oxazolo[4,5-b]pyridin-6-yl)-2-(2-methylpyridin-4-
yl)oxazole-4-carboxamide;
6.
N-(2-morpholino-5-(piperidin-1-yl)oxazolo[4,5-b]pyridin-6-yl)-6-(1H-pyrazol-4-
yl)picolinamide;
7.
2-(2-methylpyridin-4-yl)-N-(2-morpholino-5-(piperidin-1-yl)oxazolo[4,5-b]pyridin-
6-yl)oxazole-4-carboxamide;
8.
6-chloro-N-(2-morpholino-5-(piperidin-1-yl)oxazolo[4,5-b]pyridin-6-
yl)picolinamide;
9.
N-(2,5-di(piperidin-1-yl)oxazolo[4,5-b]pyridin-6-yl)-6-(1-methyl-1H-pyrazol-4-
yl)picolinamide;
10.
2-(2-chloropyridin-4-yl)-N-(2,5-di(piperidin-1-yl)oxazolo[4,5-b]pyridin-6-
yl)oxazole-4-carboxamide;
11.
(S)-2-(2-methylpyridin-4-yl)-N-(2-morpholino-5-(pyrrolidin-3-ylamino)oxazolo[4,5-
b]pyridin-6-yl)oxazole-4-carboxamide;
12.
6′-amino-N-(2-morpholinooxazolo[5,4-b]pyridin-5-yl)-[2,3′-bipyridine]-6-
carboxamide;
13.
6′-amino-N-(2-morpholinothiazolo[4,5-c]pyridin-6-yl)-[2,3′-bipyridine]-6-
carboxamide;
14.
6′-amino-N-(2-morpholinothiazolo[5,4-b]pyridin-5-yl)-[2,3′-bipyridine]-6-
carboxamide;
15.
2-(2-methylpyridin-4-yl)-N-(2-morpholinothiazolo[4,5-b]pyridin-6-yl)oxazole-4-
carboxamide;
16.
6′-amino-N-(2-morpholinothiazolo[4,5-b]pyridin-6-yl)-[2,3′-bipyridine]-6-
carboxamide;
17.
N-(2-morpholinothiazolo[4,5-b]pyridin-6-yl)-6-(1H-pyrazol-4-yl)picolinamide;
18.
3-(4-(aminomethyl)piperidin-1-yl)-5-fluoro-N-(2-morpholinothiazolo[4,5-b]pyridin-
6-yl)benzamide;
19.
2-(4-(aminomethyl)piperidin-1-yl)-5-fluoro-N-(2-morpholinothiazolo[4,5-b]pyridin-
6-yl)benzamide;
20.
2-(2-methylpyridin-4-yl)-N-(2-morpholino-5-(piperidin-1-yl)thiazolo[4,5-b]pyridin-
6-yl)oxazole-4-carboxamide;
21.
N-(2-morpholino-5-(piperidin-1-yl)thiazolo[4,5-b]pyridin-6-yl)-6-(1H-pyrazol-4-
yl)picolinamide;
22.
N-(2,5-di(piperidin-1-yl)thiazolo[4,5-b]pyridin-6-yl)-6-(1H-pyrazol-4-
yl)picolinamide;
23.
N-(2,5-di(piperidin-1-yl)thiazolo[4,5-b]pyridin-6-yl)-2-(2-methylpyridin-4-
yl)oxazole-4-carboxamide;
24.
N-(2,5-dimorpholinooxazolo[4,5-b]pyridin-6-yl)-2-(2-methylpyridin-4-yl)oxazole-4-
carboxamide;
25.
N-(5-(4-methylpiperazin-1-yl)-2-morpholinooxazolo[4,5-b]pyridin-6-yl)-2-(2-
methylpyridin-4-yl)oxazole-4-carboxamide;
26.
N-(2,5-di(piperidin-1-yl)oxazolo[4,5-b]pyridin-6-yl)-2-(6-methoxypyridin-3-
yl)oxazole-4-carboxamide;
27.
N-(2,5-di(piperidin-1-yl)oxazolo[4,5-b]pyridin-6-yl)-2-(2-methylpyridin-3-
yl)oxazole-4-carboxamide;
28.
N-(2,5-di(piperidin-1-yl)oxazolo[4,5-b]pyridin-6-yl)-2-(2-hydroxypyridin-3-
yl)oxazole-4-carboxamide;
29.
2-(2-hydroxypyridin-3-yl)-N-(2-morpholino-5-(piperidin-1-yl)oxazolo[4,5-b]pyridin-
6-yl)oxazole-4-carboxamide;
30.
N-(2,5-di(piperidin-1-yl)oxazolo[4,5-b]pyridin-6-yl)-2-(6-hydroxypyridin-3-
yl)oxazole-4-carboxamide;
31.
2-(2-methoxypyridin-4-yl)-N-(2-morpholino-5-(piperidin-1-yl)oxazolo[4,5-b]pyridin-
6-yl)oxazole-4-carboxamide;
32.
2-(2-methylpyridin-3-yl)-N-(2-morpholino-5-(piperidin-1-yl)oxazolo[4,5-b]pyridin-
6-yl)oxazole-4-carboxamide;
33.
2-(3-methylpyridin-4-yl)-N-(2-morpholino-5-(piperidin-1-yl)oxazolo[4,5-b]pyridin-
6-yl)oxazole-4-carboxamide;
34.
N-(2,5-di(piperidin-1-yl)oxazolo[4,5-b]pyridin-6-yl)-2-(3-methylpyridin-4-
yl)oxazole-4-carboxamide;
35.
2-(6-methylpyridin-3-yl)-N-(2-morpholino-5-(piperidin-1-yl)oxazolo[4,5-b]pyridin-
6-yl)oxazole-4-carboxamide;
36.
6-(1-methyl-1H-pyrazol-4-yl)-N-(2-morpholino-5-(piperidin-1-yl)oxazolo[4,5-
b]pyridin-6-yl)picolinamide;
37.
N-(2,5-di(piperidin-1-yl)oxazolo[4,5-b]pyridin-6-yl)-2-(6-methylpyridin-3-
yl)oxazole-4-carboxamide;
38.
(S)-N-(5-(3-aminopyrrolidin-1-yl)-2-morpholinooxazolo[4,5-b]pyridin-6-yl)-2-(2-
methylpyridin-4-yl)oxazole-4-carboxamide;
39.
(S)-N-(5-(3-hydroxypyrrolidin-1-yl)-2-morpholinooxazolo[4,5-b]pyridin-6-yl)-2-(2-
methylpyridin-4-yl)oxazole-4-carboxamide;
40.
(R)-N-(5-(3-aminopyrrolidin-1-yl)-2-morpholinooxazolo[4,5-b]pyridin-6-yl)-2-(2-
methylpyridin-4-yl)oxazole-4-carboxamide;
41.
(R)-N-(5-(3-hydroxypyrrolidin-1-yl)-2-morpholinooxazolo[4,5-b]pyridin-6-yl)-2-(2-
methylpyridin-4-yl)oxazole-4-carboxamide;
42.
(S)-2-(3-aminopyrrolidin-1-yl)-N-(2-morpholino-5-(piperidin-1-yl)oxazolo[4,5-
b]pyridin-6-yl)oxazole-4-carboxamide;
43.
(S)-6-(3-hydroxypyrrolidin-1-yl)-N-(2-morpholino-5-(piperidin-1-yl)oxazolo[4,5-
b]pyridin-6-yl)picolinamide;
44.
(S)-6-(3-aminopyrrolidin-1-yl)-N-(2-morpholino-5-(piperidin-1-yl)oxazolo[4,5-
b]pyridin-6-yl)picolinamide;
45.
(S)-2-(3-hydroxypyrrolidin-1-yl)-N-(2-morpholino-5-(piperidin-1-yl)oxazolo[4,5-
b]pyridin-6-yl)oxazole-4-carboxamide;
46.
(S)-N-(5-cyclopropyl-2-morpholinooxazolo[4,5-b]pyridin-6-yl)-2-(3-
hydroxypyrrolidin-1-yl)oxazole-4-carboxamide;
47.
(S)-2-(3-aminopyrrolidin-1-yl)-N-(5-cyclopropyl-2-morpholinooxazolo[4,5-
b]pyridin-6-yl)oxazole-4-carboxamide;
48.
2-(2-methylpyridin-4-yl)-N-(5-(piperidin-1-yl)-2-(pyrrolidin-1-yl)oxazolo[4,5-
b]pyridin-6-yl)oxazole-4-carboxamide hydrochloride;
49.
N-(2-(2,6-dimethylmorpholino)-5-(piperidin-1-yl)oxazolo[4,5-b]pyridin-6-yl)-2-(2-
methylpyridin-4-yl)oxazole-4-carboxamide hydrochloride;
50.
N-(2,5-di(piperidin-1-yl)thiazolo[4,5-b]pyridin-6-yl)-6-(1-methyl-1H-pyrazol-4-
yl)picolinamide hydrochloride;
51.
6-(1-methyl-1H-pyrazol-4-yl)-N-(2-morpholino-5-(piperidin-1-yl)thiazolo[4,5-
b]pyridin-6-yl)picolinamide;
52.
N-(2,5-di(piperidin-1-yl)thiazolo[4,5-b]pyridin-6-yl)-2-(2-methylpyridin-3-
yl)oxazole-4-carboxamide hydrochloride;
53.
N-(2-((2S,6R)-2,6-dimethylmorpholino)-5-(piperidin-1-yl)thiazolo[4,5-b]pyridin-6-
yl)-2-(2-methylpyridin-4-yl)oxazole-4-carboxamide;
54.
2-(2-methylpyridin-3-yl)-N-(2-morpholino-5-(piperidin-1-yl)thiazolo[4,5-b]pyridin-
6-yl)oxazole-4-carboxamide;
55.
2-(2-hydroxypyridin-3-yl)-N-(2-morpholino-5-(piperidin-1-yl)thiazolo[4,5-b]pyridin-
6-yl)oxazole-4-carboxamide;
56.
N-(2,5-di(piperidin-1-yl)thiazolo[4,5-b]pyridin-6-yl)-2-(2-methoxypyridin-4-
yl)oxazole-4-carboxamide;
57.
2-(6-methoxypyridin-3-yl)-N-(2-morpholino-5-(piperidin-1-yl)thiazolo[4,5-
b]pyridin-6-yl)oxazole-4-carboxamide;
58.
2-(2-methoxypyridin-4-yl)-N-(2-morpholino-5-(piperidin-1-yl)thiazolo[4,5-
b]pyridin-6-yl)oxazole-4-carboxamide;
59.
(S)-N-(5-(3-fluoropiperidin-1-yl)-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-2-(2-
methylpyridin-4-yl)oxazole-4-carboxamide;
60.
2-(6-methylpyridin-3-yl)-N-(2-morpholino-5-(piperidin-1-yl)thiazolo[4,5-b]pyridin-
6-yl)oxazole-4-carboxamide;
61.
2-(3-methylpyridin-4-yl)-N-(2-morpholino-5-(piperidin-1-yl)thiazolo[4,5-b]pyridin-
6-yl)oxazole-4-carboxamide;
62.
(S)-6-(3-aminopyrrolidin-1-yl)-N-(2-morpholino-5-(piperidin-1-yl)thiazolo[4,5-
b]pyridin-6-yl)picolinamide;
63.
(S)-6-(3-hydroxypyrrolidin-1-yl)-N-(2-morpholino-5-(piperidin-1-yl)thiazolo[4,5-
b]pyridin-6-yl)picolinamide;
64.
(S)-6-(3-aminopyrrolidin-1-yl)-N-(2,5-di(piperidin-1-yl)thiazolo[4,5-b]pyridin-6-
yl)picolinamide;
65.
(S)-N-(2,5-di(piperidin-1-yl)thiazolo[4,5-b]pyridin-6-yl)-6-(3-hydroxypyrrolidin-1-
yl)picolinamide;
66.
(S)-2-(3-aminopyrrolidin-1-yl)-N-(2-morpholino-5-(piperidin-1-yl)thiazolo[4,5-
b]pyridin-6-yl)oxazole-4-carboxamide;
67.
(S)-N-(5-(3-aminopyrrolidin-1-yl)-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-2-(2-
methylpyridin-4-yl)oxazole-4-carboxamide;
68.
(S)-2-(3-aminopyrrolidin-1-yl)-N-(5-cyclopropyl-2-morpholinothiazolo[4,5-
b]pyridin-6-yl)oxazole-4-carboxamide;
69.
N-(5-cyclopropyl-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-2-(2-methylpyridin-4-
yl)oxazole-4-carboxamide;
70.
(S)-2-(3-hydroxypyrrolidin-1-yl)-N-(2-morpholino-5-(piperidin-1-yl)thiazolo[4,5-
b]pyridin-6-yl)oxazole-4-carboxamide;
71.
(S)-N-(5-(3-hydroxypyrrolidin-1-yl)-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-2-(2-
methylpyridin-4-yl)oxazole-4-carboxamide;
72.
(S)-N-(5-cyclopropyl-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-6-(3-
hydroxypyrrolidin-1-yl)picolinamide;
73.
(S)-N-(5-cyclopropyl-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-2-(3-
hydroxypyrrolidin-1-yl)oxazole-4-carboxamide;
74.
(S)-N-(5-cyclopropyl-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-6-(1-(2-
hydroxypropyl)-1H-pyrazol-4-yl)picolinamide;
75.
(S)-N-(5-cyclopropyl-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-2-(1-(2-
hydroxypropyl)-1H-pyrazol-4-yl)oxazole-4-carboxamide;
76.
N-(5-(3-hydroxypyrrolidin-1-yl)-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-2-(6-
methoxypyridin-3-yl)oxazole-4-carboxamide;
77.
(S)-N-(5-(3-hydroxypyrrolidin-1-yl)-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-2-(6-
methoxypyridin-3-yl)oxazole-4-carboxamide;
78.
(R)-N-(5-(3-hydroxypyrrolidin-1-yl)-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-2-(6-
methoxypyridin-3-yl)oxazole-4-carboxamide;
79.
(S)-N-(5-(azetidin-1-yl)-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-6-(3-
hydroxypyrrolidin-1-yl)picolinamide;
80.
N-(5-(3-hydroxyazetidin-1-yl)-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-2-(2-
methylpyridin-4-yl)oxazole-4-carboxamide;
81.
(S)-N-(5-(3-hydroxypyrrolidin-1-yl)-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-5-(2-
methylpyridin-4-yl)thiophene-2-carboxamide;
82.
(S)-N-(5-(3-hydroxypyrrolidin-1-yl)-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-5-(2-
methylpyridin-4-yl)furan-2-carboxamide;
83.
(S)-N-(5-(3-hydroxypiperidin-1-yl)-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-2-(2-
methylpyridin-4-yl)oxazole-4-carboxamide;
84.
N-(5-(4-hydroxypiperidin-1-yl)-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-2-(2-
methylpyridin-4-yl)oxazole-4-carboxamide
85.
(R)-N-(5-(3-hydroxypyrrolidin-1-yl)-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-2-(2-
methylpyridin-4-yl)oxazole-4-carboxamide;
86.
N-(5-(4-hydroxypiperidin-1-yl)-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-5-(2-
methylpyridin-4-yl)furan-2-carboxamide;
87.
N-(5-(azetidin-1-yl)-2-(piperidin-1-yl)thiazolo[4,5-b]pyridin-6-yl)-2-(2-
methylpyridin-4-yl)oxazole-4-carboxamide;
88.
2-(2-methylpyridin-4-yl)-N-(2-(piperidin-1-yl)-5-(pyrrolidin-1-yl)thiazolo[4,5-
b]pyridin-6-yl)oxazole-4-carboxamide;
89.
2-(2-methylpyridin-4-yl)-N-(2-morpholino-5-(pyrrolidin-1-yl)thiazolo[4,5-b]pyridin-
6-yl)oxazole-4-carboxamide;
90.
5-(2-methylpyridin-4-yl)-N-(2-morpholino-5-(piperidin-1-yl)thiazolo[4,5-b]pyridin-
6-yl)furan-2-carboxamide;
91.
N-(5-(azepan-1-yl)-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-2-(2-methylpyridin-4-
yl)oxazole-4-carboxamide;
92.
2-(2-aminopyridin-4-yl)-N-(2-morpholino-5-(piperidin-1-yl)thiazolo[4,5-b]pyridin-6-
yl)oxazole-4-carboxamide hydrochloride;
93.
N-(5-(azetidin-1-yl)-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-2-(2-methylpyridin-4-
yl)oxazole-4-carboxamide;
94.
(R)-N-(5-(3-hydroxypiperidin-1-yl)-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-2-(2-
methylpyridin-4-yl)oxazole-4-carboxamide;
95.
(R)-N-(5-(3-hydroxypiperidin-1-yl)-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-5-(2-
methylpyridin-4-yl)furan-2-carboxamide;
96.
(S)-6-(1-(2-hydroxypropyl)-1H-pyrazol-4-yl)-N-(2-morpholino-5-(piperidin-1-
yl)thiazolo[4,5-b]pyridin-6-yl)picolinamide
97.
N-(5-(4-fluoropiperidin-1-yl)-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-5-(2-
methylpyridin-4-yl)furan-2-carboxamide
98.
N-(5-(4-fluoropiperidin-1-yl)-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-2-(2-
methylpyridin-4-yl)oxazole-4-carboxamide hydrochloride
99.
N-(5-(1-methyl-1H-pyrazol-4-yl)-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-2-(2-
methylpyridin-4-yl)oxazole-4-carboxamide;
100.
N-(5-(3-fluorophenyl)-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-2-(2-methylpyridin-
4-yl)oxazole-4-carboxamide;
101.
N-(5-(4-hydroxypiperidin-1-yl)-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-5-(2-
methylpyridin-4-yl)furan-2-carboxamide;
102.
N-(5-(3-fluoropiperidin-1-yl)-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-5-(2-
methylpyridin-4-yl)furan-2-carboxamide;
103.
(S)-N-(5-(3-hydroxypyrrolidin-1-yl)-2-morpholinooxazolo[4,5-b]pyridin-6-yl)-2-(6-
methoxypyridin-3-yl)oxazole-4-carboxamide;
104.
N-(5-(3-hydroxypyrrolidin-1-yl)-2-morpholinooxazolo[4,5-b]pyridin-6-yl)-2-(2-
methylpyridin-4-yl)oxazole-4-carboxamide;
105.
(R)-N-(5-(3-hydroxypyrrolidin-1-yl)-2-morpholinooxazolo[4,5-b]pyridin-6-yl)-2-(6-
methoxypyridin-3-yl)oxazole-4-carboxamide;
106.
N-(5-(3-hydroxypyrrolidin-1-yl)-2-morpholinooxazolo[4,5-b]pyridin-6-yl)-2-(6-
methoxypyridin-3-yl)oxazole-4-carboxamide;
107.
(S)-N-(5-(3-hydroxypyrrolidin-1-yl)-2-morpholinooxazolo[4,5-b]pyridin-6-yl)-5-(2-
methylpyridin-4-yl)furan-2-carboxamide;
108.
(S)-N-(5-(3-hydroxypyrrolidin-1-yl)-2-morpholinooxazolo[4,5-b]pyridin-6-yl)-5-(2-
methylpyridin-4-yl)thiophene-2-carboxamide;
109.
N-(5-(azetidin-1-yl)-2-(piperidin-1-yl)oxazolo[4,5-b]pyridin-6-yl)-2-(2-
methylpyridin-4-yl)oxazole-4-carboxamide;
110.
2-(2-methylpyridin-4-yl)-N-(2-(piperidin-1-yl)-5-(pyrrolidin-1-yl)oxazolo[4,5-
b]pyridin-6-yl)oxazole-4-carboxamide;
111.
5-(2-methylpyridin-4-yl)-N-(2-morpholino-5-(piperidin-1-yl)oxazolo[4,5-b]pyridin-
6-yl)furan-2-carboxamide;
112.
N-(5-(azetidin-1-yl)-2-morpholinooxazolo[4,5-b]pyridin-6-yl)-2-(2-methylpyridin-4-
yl)oxazole-4-carboxamide;
113.
2-(2-methylpyridin-4-yl)-N-(2-morpholino-5-(pyrrolidin-1-yl)oxazolo[4,5-b]pyridin-
6-yl)oxazole-4-carboxamide;
114.
N-(5-(4-hydroxypiperidin-1-yl)-2-morpholinooxazolo[4,5-b]pyridin-6-yl)-5-(2-
methylpyridin-4-yl)furan-2-carboxamide;
115.
(R)-N-(5-(3-hydroxypiperidin-1-yl)-2-morpholinooxazolo[4,5-b]pyridin-6-yl)-5-(2-
methylpyridin-4-yl)furan-2-carboxamide;
116.
N-(5-(furan-3-yl)-2-morpholinooxazolo[4,5-b]pyridin-6-yl)-2-(2-methylpyridin-4-
yl)oxazole-4-carboxamide;
117.
N-(5-(3-fluoropiperidin-1-yl)-2-morpholinooxazolo[4,5-b]pyridin-6-yl)-2-(2-
methylpyridin-4-yl)oxazole-4-carboxamide;
118.
N-(5-(4-hydroxypiperidin-1-yl)-2-morpholinooxazolo[4,5-b]pyridin-6-yl)-2-(2-
methylpyridin-4-yl)oxazole-4-carboxamide;
119.
N-(5-(4-fluoropiperidin-1-yl)-2-morpholinooxazolo[4,5-b]pyridin-6-yl)-2-(2-
methylpyridin-4-yl)oxazole-4-carboxamide;
120.
(S)-N-(5-(3-aminopiperidin-1-yl)-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-2-(2-
methylpyridin-4-yl)oxazole-4-carboxamide;
121.
2-(2-methylpyridin-4-yl)-N-(2-morpholino-5-(1H-pyrazol-4-yl)thiazolo[4,5-
b]pyridin-6-yl)oxazole-4-carboxamide;
122.
N-(5-(6-fluoropyridin-3-yl)-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-2-(2-
methylpyridin-4-yl)oxazole-4-carboxamide;
123.
N-(5-(3-hydroxy-8-azabicyclo[3.2.1]octan-8-yl)-2-morpholinothiazolo[4,5-b]pyridin-
6-yl)-2-(2-methylpyridin-4-yl)oxazole-4-carboxamide;
124.
N-(2-(3-hydroxypiperidin-1-yl)-5-(piperidin-1-yl)thiazolo[4,5-b]pyridin-6-yl)-2-(2-
methylpyridin-4-yl)oxazole-4-carboxamide;
125.
2-(2-acetamidopyridin-4-yl)-N-(5-(4-hydroxypiperidin-1-yl)-2-
morpholinothiazolo[4,5-b]pyridin-6-yl)oxazole-4-carboxamide;
126.
N-(2-(3-hydroxypiperidin-1-yl)-5-(4-hydroxypiperidin-1-yl)thiazolo[4,5-b]pyridin-6-
yl)-2-(2-methylpyridin-4-yl)oxazole-4-carboxamide;
127.
2-(2-acetamidopyridin-4-yl)-N-(5-(3-hydroxypiperidin-1-yl)-2-
morpholinothiazolo[4,5-b]pyridin-6-yl)oxazole-4-carboxamide;
128.
2-(2-aminopyridin-4-yl)-N-(5-(3-hydroxypiperidin-1-yl)-2-morpholinothiazolo[4,5-
b]pyridin-6-yl)oxazole-4-carboxamide hydrochloride;
129.
5-(2-aminopyridin-4-yl)-N-(5-(4-hydroxypiperidin-1-yl)-2-morpholinothiazolo[4,5-
b]pyridin-6-yl)furan-3-carboxamide hydrochloride;
130.
2-(2-aminopyridin-4-yl)-N-(5-(4-hydroxypiperidin-1-yl)-2-morpholinothiazolo[4,5-
b]pyridin-6-yl)oxazole-4-carboxamide hydrochloride;
131.
2-(2-aminopyridin-4-yl)-N-(5-(4-fluoropiperidin-1-yl)-2-morpholinothiazolo[4,5-
b]pyridin-6-yl)oxazole-4-carboxamide hydrochloride;
132.
N-(5-(2-fluoropyridin-4-yl)-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-2-(2-
methylpyridin-4-yl)oxazole-4-carboxamide;
133.
N-(5-(4-fluoropiperidin-1-yl)-2-(3-hydroxypiperidin-1-yl)thiazolo[4,5-b]pyridin-6-
yl)-2-(2-methylpyridin-4-yl)oxazole-4-carboxamide;
134.
N-(5-(4-aminopiperidin-1-yl)-2-(3-hydroxypiperidin-1-yl)thiazolo[4,5-b]pyridin-6-
yl)-2-(2-methylpyridin-4-yl)oxazole-4-carboxamide hydrochloride; and
135.
N-(5-(2-hydroxypyridin-4-yl)-2-morpholinothiazolo[4,5-b]pyridin-6-yl)-2-(2-
methylpyridin-4-yl)oxazole-4-carboxamide hydrochloride;
or a pharmaceutically acceptable salt thereof.