Pyrazole compounds, pharmaceutical compositions thereof and use thereof

1. A compound represented by Formula (I) or a pharmaceutically acceptable salt thereof, wherein the compound represented by Formula (I) has the following structure:

wherein

the Het ring is a five- or six-membered heteroaromatic ring;

R 1 is selected from H or D;

R 2 and R 3 are each selected from H, D, alkyl, halogen, or OR a ;

R 4 is selected from COR d , CONR b R c , CO 2 R d , SO 2 R d , or SO 2 NR b R c ;

R 5 is selected from H, D, halogen, cyano, OR a , SR a , NR b R c , COR d , CONR b R c , CO 2 R d , SO 2 R d , SO 2 NR b R c , alkyl, alkenyl, alkynyl, cycloalkyl, or heterocycloalkyl; wherein the alkyl, alkenyl, alkynyl, cycloalkyl, or heterocycloalkyl is unsubstituted or substituted with 1 to 3 R 5a ;

R 5a is selected from H, D, halogen, cyano, alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, OR a , SR a , NR b R c , COR d , CONR b R c , CO 2 R d , SO 2 R d , or SO 2 NR b R c ; wherein the alkyl, cycloalkyl, or heterocycloalkyl is unsubstituted or substituted with 1 to 3 R 5b ;

R 5b is selected from H, D, halogen, cyano, OR a , SR a , NR b R c , COR d , CONR b R c , CO 2 R d , SO 2 R d , or SO 2 NR b R c ;

R a , R b , R c , and R d are each selected from H, D, alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl, wherein the alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl is unsubstituted or substituted with 1 to 4 R 6 ;

R 6 is selected from H, D, halogen, cyano, OR a , SR a , NR b R c , NR b COR d , NR b CONR b R c , CONR b R c , CO 2 R d , NR b SO 2 R d , NR b SO 2 NR b R c , SOR d , SO 2 R d , SO 2 NR b R c , alkyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl;

wherein R b and R c in a group containing both R b and R c are attached to a N atom in the group by a single bond or form a heterocycloalkyl together with the N atom to which they are attached, and the heterocycloalkyl is unsubstituted or substituted with 1 to 3 R 7 ;

R 7 is selected from H, D, halogen, cyano, OR a , SR a , NR b R c , NR b COR d , NR b CONR b R c , CONR b R c , CO 2 R d , NR b SO 2 R d , NR b SO 2 NR b R c , SOR d , SO 2 R d , SO 2 NR b R c , alkyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; and

m, n, p, q, and y are each independently 1, 2, or 3.

2. The compound or the pharmaceutically acceptable salt thereof according to claim 1 , wherein the compound has a structure represented by Formula (IA):

wherein

R 4 is selected from COR d , CONR b R c , CO 2 R d , SO 2 R d , or SO 2 NR b R c ;

R 5 is selected from H, D, halogen, cyano, OR a , SR a , NR b R c , COR d , CONR b R c , CO 2 R d , SO 2 R d , SO 2 NR b R c , alkyl, alkenyl, alkynyl, cycloalkyl, or heterocycloalkyl; wherein the alkyl, alkenyl, alkynyl, cycloalkyl, or heterocycloalkyl is unsubstituted or substituted with 1 to 3 R 5a ;

R 5a is selected from H, D, halogen, cyano, alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, OR a , SR a , NR b R c , COR d , CONR b R c , CO 2 R d , SO 2 R d , or SO 2 NR b R c ; wherein the alkyl, cycloalkyl, and heterocycloalkyl are unsubstituted or substituted with 1 to 3 R 5b ;

R 5b is selected from H, D, halogen, cyano, OR a , SR a , NR b R c , COR d , CONR b R c , CO 2 R d , SO 2 R d , or SO 2 NR b R c ;

R 8 is selected from H, D, alkyl, halogen, haloalkyl, or OR a ;

R a , R b , R c , and R d are each selected from H, D, alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl, wherein the alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl is unsubstituted or substituted with 1 to 4 R 6 ;

R 6 is selected from H, D, halogen, cyano, OR a , SR a , NR b R c , NR b COR d , NR b CONR b R c , CONR b R c , CO 2 R d , NR b SO 2 R d , NR b SO 2 NR b R c , SOR d , SO 2 R d , SO 2 NR b R c , alkyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl;

wherein R b and R c in a group containing both R b and R c are attached to a N atom in the group by a single bond or form a heterocycloalkyl together with the N atom to which they are attached, and the heterocycloalkyl is unsubstituted or substituted with 1 to 3 R 7 ;

R 7 is selected from H, D, halogen, cyano, OR a , SR a , NR b R c , NR b COR d , NR b CONR b R c , CONR b R c , CO 2 R d , NR b SO 2 R d , NR b SO 2 NR b R c , SOR d , SO 2 R d , SO 2 NR b R c , alkyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; and

z is 1 or 2.

3. The compound or the pharmaceutically acceptable salt thereof according to claim 1 , wherein the compound is selected from the group consisting of:

N-(1-(1-(1-acetylpiperidin-4-yl)azetidin-3-yl)-3-(difluoromethyl)-1H-pyrazol-4-yl)-6-(1-(2,2-difluoroethyl)-1H-pyrazol-4-yl)-2-picolinamide,

6-(1-(2,2-difluoroethyl)-1H-pyrazol-4-yl)-N-(3-(difluoromethyl)-1-(1-(1-(2-hydroxyacetyl)piperidin-4-yl)azetidin-3-yl)-1H-pyrazol-4-yl)-2-picolinamide,

N-(1-(1-(1-acetylpiperidin-4-yl)azetidin-3-yl)-3-(difluoromethyl)-1H-pyrazol-4-yl)-6-(1-(2,2,2-trifluoroethyl)-1H-pyrazol-4-yl)-2-picolinamide,

N-(3-(difluoromethyl)-1-(1-(1-(2-hydroxyacetyl)piperidin-4-yl)azetidin-3-yl)-1H-pyrazol-4-yl)-6-(1-(2,2,2-trifluoroethyl)-1H-pyrazol-4-yl)-2-picolinamide,

N-(1-(1-(1-acetylpiperidin-4-yl)azetidin-3-yl)-3-(difluoromethyl)-1H-pyrazol-4-yl)-6-(1-(difluoromethyl)-1H-pyrazol-4-yl)-2-picolinamide,

N-(1-(1-(1-acetylpiperidin-4-yl)azetidin-3-yl)-3-(difluoromethyl)-1H-pyrazol-4-yl)-6-(1-methyl-1H-pyrazol-4-yl)-2-picolinamide,

N-(1-(1-(1-acetylpiperidin-4-yl)azetidin-3-yl)-3-(difluoromethyl)-1H-pyrazol-4-yl)-6-(1-ethyl-1H-pyrazol-4-yl)-2-picolinamide,

N-(1-(1-(1-acetylpiperidin-4-yl)azetidin-3-yl)-3-(difluoromethyl)-1H-pyrazol-4-yl)-6-(1-isopropyl-1H-pyrazol-4-yl)-2-picolinamide,

N-(1-(1-(1-acetylpiperidin-4-yl)azetidin-3-yl)-3-(difluoromethyl)-1H-pyrazol-4-yl)-6-(1-(1-cyanocyclopropyl)-1H-pyrazol-4-yl)-2-picolinamide,

N-(1-(1-(1-acetylpiperidin-4-yl)azetidin-3-yl)-3-(difluoromethyl)-1H-pyrazol-4-yl)-6-(1-(1-cyanocyclobutyl)-1H-pyrazol-4-yl)-2-picolinamide,

N-(1-(1-(1-acetylpiperidin-4-yl)azetidin-3-yl)-3-(difluoromethyl)-1H-pyrazol-4-yl)-6-(1-(1-(aminomethyl)cyclobutyl)-1H-pyrazol-4-yl)-2-picolinamide,

N-(1-(1-(1-acetylpiperidin-4-yl)azetidin-3-yl)-3-(difluoromethyl)-1H-pyrazol-4-yl)-6-(1-(2-cyanopropan-2-yl)-1H-pyrazol-4-yl)-2-picolinamide,

N-(1-(1-(1-acetylpiperidin-4-yl)azetidin-3-yl)-3-(difluoromethyl)-1H-pyrazol-4-yl)-6-(1-(1-amino-2-methylpropan-2-yl)-1H-pyrazol-4-yl)-2-picolinamide,

N-(1-(1-(1-acetylpiperidin-4-yl)azetidin-3-yl)-3-(difluoromethyl)-1H-pyrazol-4-yl)-6-(1-(1-(hydroxymethyl)cyclobutyl)-1H-pyrazol-4-yl)-2-picolinamide,

N-(1-(1-(1-acetylpiperidin-4-yl)azetidin-3-yl)-3-(difluoromethyl)-1H-pyrazol-4-yl)-6-(1-(2-hydroxy-2-methylpropyl)-1H-pyrazol-4-yl)-2-picolinamide,

N-(1-(1-(1-acetylpiperidin-4-yl)azetidin-3-yl)-3-(difluoromethyl)-1H-pyrazol-4-yl)-6-(1-(1-hydroxy-2-methylpropyl-2-yl)-1H-pyrazol-4-yl)-2-picolinamide,

6-(1-(1-amino-2-methylpropan-2-yl)-1H-pyrazol-4-yl)-N-(3-(difluoromethyl)-1-(1-(1-(dimethylcarbamoyl)piperidin-4-yl)azetidin-3-yl)-1H-pyrazol-4-yl)-2-picolinamide,

methyl 4-(3-(4-(6-(1-(1-amino-2-methylpropan-2-yl)-1H-pyrazol-4-yl)-2-picolinamide)-3-(difluoromethyl)-1H-pyrazol-1-yl)azetidin-1-yl)piperidine-1-carboxylate,

N-(1-(1-(1-acetylpiperidin-4-yl)azetidin-3-yl)-3-(difluoromethyl)-1H-pyrazol-4-yl)-6-(1H-pyrazol-4-yl)-2-picolinamide,

N-(3-(difluoromethyl)-1-(1-(1-(dimethylcarbamoyl)piperidin-4-yl)azetidin-3-yl)-1H-pyrazol-4-yl)-6-(1H-pyrazol-4-yl)-2-picolinamide,

methyl 4-(3-(4-(6-(1H-pyrazol-4-yl)-2-picolinamide)-3-(difluoromethyl)-1H-pyrazol-1-yl)azetidin-1-yl)piperidine-1-carboxylate,

N-(1-(1-(1-acryloylpiperidin-4-yl)azetidin-3-yl)-3-(difluoromethyl)-1H-pyrazol-4-yl)-6-(1H-pyrazol-4-yl)-2-picolinamide,

N-(1-(1-(1-acryloylpiperidin-4-yl)azetidin-3-yl)-3-(difluoromethyl)-1H-pyrazol-4-yl)-6-(1H-pyrazol-3-yl)-2-picolinamide,

N-(1-(1-(1-acetylpiperidin-4-yl)azetidin-3-yl)-3-(difluoromethyl)-1H-pyrazol-4-yl)-6-(1H-pyrazol-3-yl)-2-picolinamide,

methyl 4-(3-(4-(6-(1H-pyrazol-3-yl)-2-picolinamide)-3-(difluoromethyl)-1H-pyrazol-1-yl)azetidin-1-yl)piperidine-1-carboxylate,

N-(3-(difluoromethyl)-1-(1-(1-propionylpiperidin-4-yl)azetidin-3-yl)-1H-pyrazol-4-yl)-6-(1H-pyrazol-3-yl)-2-picolinamide,

N-(3-(difluoromethyl)-1-(1-(1-(2-hydroxyacetyl)piperidin-4-yl)azetidin-3-yl)-1H-pyrazol-4-yl)-6-(1H-pyrazol-3-yl)-2-picolinamide,

N-(3-(difluoromethyl)-1-(1-(1-(dimethylcarbamoyl)piperidin-4-yl)azetidin-3-yl)-1H-pyrazol-4-yl)-6-(1H-pyrazol-3-yl)-2-picolinamide,

N-(3-(difluoromethyl)-1-(1-(1-isobutyrylpiperidin-4-yl)azetidin-3-yl)-1H-pyrazol-4-yl)-6-(1H-pyrazol-3-yl)-2-picolinamide,

(S)—N-(3-(difluoromethyl)-1-(1-(1-(2-hydroxypropionyl)piperidin-4-yl)azetidin-3-yl)-1H-pyrazol-4-yl)-6-(1-(2,2,2-trifluoroethyl)-1H-pyrazol-4-yl)-2-picolinamide,

(R)—N-(3-(difluoromethyl)-1-(1-(1-(2-hydroxypropionyl)piperidin-4-yl)azetidin-3-yl)-1H-pyrazol-4-yl)-6-(1-(2,2,2-trifluoroethyl)-1H-pyrazol-4-yl)-2-picolinamide,

N-(3-(difluoromethyl)-1-(1-(1-(2-hydroxy-2-methylpropionyl)piperidin-4-yl)azetidin-3-yl)-1H-pyrazol-4-yl)-6-(1-(2,2,2-trifluoroethyl)-1H-pyrazol-4-yl)-2-picolinamide,

N-(3-(difluoromethyl)-1-(1-(1-(methylsulfonyl)piperidin-4-yl)azetidin-3-yl)-1H-pyrazol-4-yl)-6-(1-(2,2,2-trifluoroethyl)-1H-pyrazol-4-yl)-2-picolinamide,

(S)-6-(1-(2,2-difluoroethyl)-1H-pyrazol-4-yl)-N-(3-(difluoromethyl)-1-(1-(1-(2-hydroxypropionyl)piperidin-4-yl)azetidin-3-yl)-1H-pyrazol-4-yl)-2-picolinamide,

(R)-6-(1-(2,2-difluoroethyl)-1H-pyrazol-4-yl)-N-(3-(difluoromethyl)-1-(1-(1-(2-hydroxypropionyl)piperidin-4-yl)azetidin-3-yl)-1H-pyrazol-4-yl)-2-picolinamide,

6-(1-(2,2-difluoroethyl)-1H-pyrazol-4-yl)-N-(3-(difluoromethyl)-1-(1-(1-(2-hydroxy-2-methylpropionyl)piperidin-4-yl)azetidin-3-yl)-1H-pyrazol-4-yl)-2-picolinamide,

6-(1-(2,2-difluoroethyl)-1H-pyrazol-4-yl)-N-(3-(difluoromethyl)-1-(1-(1-(methylsulfonyl)piperidin-4-yl)azetidin-3-yl)-1H-pyrazol-4-yl)-2-picolinamide,

6-(1-(2,2-difluoroethyl)-1H-pyrazol-4-yl)-N-(3-(difluoromethyl)-1-(1-(1-(dimethylcarbamoyl)piperidin-4-yl)azetidin-3-yl)-1H-pyrazol-4-yl)-2-picolinamide,

(S)—N-(3-(difluoromethyl)-1-(1-(1-(2-hydroxypropionyl)piperidin-4-yl)azetidin-3-yl)-1H-pyrazol-4-yl)-6-(1H-pyrazol-3-yl)-2-picolinamide,

(R)—N-(3-(difluoromethyl)-1-(1-(1-(2-hydroxypropionyl)piperidin-4-yl)azetidin-3-yl)-1H-pyrazol-4-yl)-6-(1H-pyrazol-3-yl)-2-picolinamide,

N-(3-(difluoromethyl)-1-(1-(1-(2-hydroxy-2-methylpropionyl)piperidin-4-yl)azetidin-3-yl)-1H-pyrazol-4-yl)-6-(1H-pyrazol-3-yl)-2-picolinamide,

N-(3-(difluoromethyl)-1-(1-(1-(methylsulfonyl)piperidin-4-yl)azetidin-3-yl)-1H-pyrazol-4-yl)-6-(1H-pyrazol-3-yl)-2-picolinamide and

6-(1-(2-cyanopropan-2-yl)-1H-pyrazol-4-yl)-N-(3-(difluoromethyl)-1-(1-(1-(2-hydroxyacetyl)piperidin-4-yl)azetidin-3-yl)-1H-pyrazol-4-yl)-2-picolinamide.

4. A pharmaceutical composition, which consists of the compound or the pharmaceutically acceptable salt thereof according to claim 1 and at least one pharmaceutically acceptable carrier or excipient.

5. A method for treating a disease mediated by IRAK4 kinase, comprising administrating to a subject in need thereof the compound or the pharmaceutically acceptable salt thereof according to claim 1 .

6. The method according to claim 5 , wherein the disease is selected from autoimmune diseases; inflammatory diseases; pain disorders; respiratory tract, airway and lung diseases; lung inflammation and injury; pulmonary hypertension; gastrointestinal diseases; allergic diseases; infectious diseases; trauma disorders and tissue injuries; fibrotic diseases; eye diseases; joint, muscle and bone diseases; skin diseases; kidney diseases; hematopoietic diseases; liver diseases; oral diseases; metabolic disorders and heart diseases; vascular diseases; neuroinflammatory diseases; neurodegenerative diseases; sepsis; genetic disorders; and cancer.

7. The method according to claim 6 , wherein the autoimmune diseases and the inflammatory diseases are selected from systemic lupus erythematosus, lupus nephritis, arthritis, psoriasis, colitis, Crohn's disease, atopic dermatitis, liver fibrosis, Alzheimer's disease, gout, cryopyrin-associated periodic syndrome, chronic kidney disease or acute kidney injury, chronic obstructive pulmonary disease, asthma, bronchi spasms, and graft-versus-host disease; and the cancer is selected from breast cancer, small cell lung cancer, non-small cell lung cancer, bronchi alveolar cancer, prostate cancer, cholangiocarcinoma, bone cancer, bladder cancer, head and neck cancer, renal cancer, liver cancer, gastrointestinal tissue cancer, esophageal cancer, ovarian cancer, pancreatic cancer, skin cancer, testicular cancer, thyroid cancer, uterine cancer, cervical and vaginal cancer, leukemia, multiple myeloma, and lymphoma.

8. The method according to claim 5 , wherein the compound or the pharmaceutically acceptable salt thereof is used alone or in combination with additional medicaments; wherein the additional medicaments are any one or a combination of at least two of a small molecule medicament, a monoclonal antibody medicament, a fusion protein medicament, and an anti-sense DNA medicament.

9. The compound or the pharmaceutically acceptable salt thereof according to claim 1 , wherein the compound is N-(1-(1-(1-acetylpiperidin-4-yl)azetidin-3-yl)-3-(difluoromethyl)-1H-pyrazol-4-yl)-6-(1-(2,2-difluoroethyl)-1H-pyrazol-4-yl)-2-picolinamide.

10. The compound or the pharmaceutically acceptable salt thereof according to claim 1 , wherein the compound is 6-(1-(2,2-difluoroethyl)-1H-pyrazol-4-yl)-N-(3-(difluoromethyl)-1-(1-(1-(2-hydroxyacetyl)piperidin-4-yl)azetidin-3-yl)-1H-pyrazol-4-yl)-2-picolinamide.

11. The compound or the pharmaceutically acceptable salt thereof according to claim 1 , wherein the compound is N-(1-(1-(1-acetylpiperidin-4-yl)azetidin-3-yl)-3-(difluoromethyl)-1H-pyrazol-4-yl)-6-(1-(2,2,2-trifluoroethyl)-1H-pyrazol-4-yl)-2-picolinamide.

12. The compound or the pharmaceutically acceptable salt thereof according to claim 1 , wherein the compound is N-(3-(difluoromethyl)-1-(1-(1-(2-hydroxyacetyl)piperidin-4-yl)azetidin-3-yl)-1H-pyrazol-4-yl)-6-(1-(2,2,2-trifluoroethyl)-1H-pyrazol-4-yl)-2-picolinamide.

13. The compound or the pharmaceutically acceptable salt thereof according to claim 1 , wherein the compound is N-(1-(1-(1-acetylpiperidin-4-yl)azetidin-3-yl)-3-(difluoromethyl)-1H-pyrazol-4-yl)-6-(1-(difluoromethyl)-1H-pyrazol-4-yl)-2-picolinamide.

14. The compound or the pharmaceutically acceptable salt thereof according to claim 1 , wherein the compound is N-(1-(1-(1-acetylpiperidin-4-yl)azetidin-3-yl)-3-(difluoromethyl)-1H-pyrazol-4-yl)-6-(1-methyl-1H-pyrazol-4-yl)-2-picolinamide.

15. The compound or the pharmaceutically acceptable salt thereof according to claim 1 , wherein the compound is N-(1-(1-(1-acetylpiperidin-4-yl)azetidin-3-yl)-3-(difluoromethyl)-1H-pyrazol-4-yl)-6-(1-ethyl-1H-pyrazol-4-yl)-2-picolinamide.

16. The compound or the pharmaceutically acceptable salt thereof according to claim 1 , wherein the compound is N-(1-(1-(1-acetylpiperidin-4-yl)azetidin-3-yl)-3-(difluoromethyl)-1H-pyrazol-4-yl)-6-(1-isopropyl-1H-pyrazol-4-yl)-2-picolinamide.

17. The compound or the pharmaceutically acceptable salt thereof according to claim 1 , wherein the compound is N-(1-(1-(1-acetylpiperidin-4-yl)azetidin-3-yl)-3-(difluoromethyl)-1H-pyrazol-4-yl)-6-(1-(1-cyanocyclopropyl)-1H-pyrazol-4-yl)-2-picolinamide.

18. The compound or the pharmaceutically acceptable salt thereof according to claim 1 , wherein the compound is N-(1-(1-(1-acetylpiperidin-4-yl)azetidin-3-yl)-3-(difluoromethyl)-1H-pyrazol-4-yl)-6-(1-(1-cyanocyclobutyl)-1H-pyrazol-4-yl)-2-picolinamide.