# US 2019/0169184 A1 · Novel compounds and pharmaceutical compositions thereof for the treatment of inflammatory disorders

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- Number: US 2019/0169184 A1
- Document ID: US20190169184A1
- Status: Published application
- Kind: A1
- Application number: 16/146,450
- Filed: 2018-09-28
- Published: 2019-06-06
- Earliest claimed: 2013-03-14
- Assignees: Galapagos NV
- Applicants: Galapagos NV
- Inventors: Nicolas DESROY; Bertrand HECKMANN; Reginald Christophe Xavier BRYS; Agnès Marie JONCOUR; Christophe PEIXOTO; Xavier Marie BOCK
- Web page: https://patentgrep.com/patent/US20190169184A1

## CPC

- C07D 471/04: Ortho-condensed systems
- A61K 31/437: the heterocyclic ring system containing a five-membered ring having nitrogen as a ring hetero atom, e.g. indolizine, beta-carboline
- A61K 31/444: containing a six-membered ring with nitrogen as a ring heteroatom, e.g. amrinone
- A61K 31/4545: containing a six-membered ring with nitrogen as a ring hetero atom, e.g. pipamperone, anabasine
- A61K 31/496: Non-condensed piperazines containing further heterocyclic rings, e.g. rifampin, thiothixene or sparfloxacin
- A61K 31/506: not condensed and containing further heterocyclic rings
- A61K 31/5377: not condensed and containing further heterocyclic rings, e.g. timolol
- A61K 31/541: Non-condensed thiazines containing further heterocyclic rings
- A61K 45/06: Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
- A61P 3/04: Anorexiants; Antiobesity agents
- A61P 3/10: for hyperglycaemia, e.g. antidiabetics
- A61P 9/00: Drugs for disorders of the cardiovascular system
- A61P 9/10: for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
- A61P 11/00: Drugs for disorders of the respiratory system
- A61P 11/06: Antiasthmatics
- A61P 17/00: Drugs for dermatological disorders
- A61P 19/02: for joint disorders, e.g. arthritis, arthrosis
- A61P 25/00: Drugs for disorders of the nervous system
- A61P 25/04: Centrally acting analgesics, e.g. opioids
- A61P 25/28: for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia
- A61P 29/00: Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
- A61P 35/00: Antineoplastic agents
- A61P 35/02: specific for leukemia
- A61P 37/00: Drugs for immunological or allergic disorders
- A61P 37/02: Immunomodulators
- A61P 43/00: Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
- C07D: HETEROCYCLIC COMPOUNDS (macromolecular compounds C08)
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)
- A61P: SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS

## Abstract

The present invention discloses compounds according to Formula I: Wherein R1a, R1b, R2, R4, R5, R6a, R6b, R7, R8, W, X, Cy, and the subscript a are as defined herein. The present invention relates to compounds inhibiting autotaxin (NPP2 or ENPP2), methods for their production, pharmaceutical compositions comprising the same, and methods of treatment using the same, for the prophylaxis and/or treatment of diseases involving fibrotic diseases, proliferative diseases, inflammatory diseases, autoimmune diseases, respiratory diseases, cardiovascular diseases, neurodegenerative diseases, dermatological disorders, and/or abnormal angiogenesis associated diseases by administering the compound of the invention.

## Claims

### Claim 1

1) A compound according to Formula I:
wherein
R1a is H, halo or C1-4 alkyl;
R1b is:
halo,
C1-4 alkyl (which alkyl is optionally substituted with one or more independently selected halo), or
C1-4 alkoxy (which alkoxy is optionally substituted with one or more independently selected halo);
X is —S—, —O—, —N═CH—, —CH═N— or —CH═CH—;
W is N, or CR3
when W is N, R2 is:
H,
—CN,
halo,
C1-4 alkyl (which alkyl is optionally substituted with one or more independently selected OH, or CN)
—C(═O)CH3,
—C(═O)CF3,
—C(═O)OCH3,
—C(═O)NH2, or
—NHC(═O)CH3, or
when W is CR3, one of R2 or R3 is:
H,
—CN,
halo,
C1-4 alkyl (which alkyl is optionally substituted with one or more independently selected OH, or CN)
—C(═O)CH3,
—C(═O)CF3,
—C(═O)OCH3,
—C(═O)NH2, or
—NHC(═O)CH3,
and the other is H, or C1-4 alkyl;
R4 is C1-4 alkyl;
R5 is C1-4 alkyl optionally substituted with one or more independently selected CN, OH, halo, or —C(═O)NH2;
one of R6a or R6b is selected from H, —CH3, and halo, and the other is H;
Cy is:
—C4-10 cycloalkyl,
4-10 membered mono or bicyclic heterocycloalkyl containing one or more heteroatoms independently selected from O, N, and S, or
4-7 membered heterocycloalkenyl containing 1 double bond, containing one or more heteroatoms independently selected from O, N, and S;
each R7 is independently selected from:
OH,
oxo,
halo, and
C1-4 alkyl (which alkyl is optionally substituted with one or more independently selected OH, or C1-4 alkoxy);
the subscript a is 0, 1 or 2;
R8 is -(L1-W1)m-L2-G1,
wherein
L1 is absent, or is —O—, —C(═O)—, —NRi, —NRhC(═O)—, or —SO2—;
W1 is C1-4 alkylene;
the subscript m is 0, or 1;
L2 is absent, or is —O—, —C(═O)—, —C(═O)O—, —OC(═O)—, —C(═O)—C(═O)—, —C(═O)—C(═O)NRa—, —NRb—, —C(═O)NRc—, —NRdC(═O)—, —NRjC(═O)O—, —SO2—, —SO2NRe— or —NRfSO2—;
G1 is
H,
—CN,
C1-4 alkyl (which alkyl is optionally substituted with one or more independently selected CN, OH, halo or phenyl),
C3-7 cycloalkyl (which cycloalkyl is optionally substituted with NH2),
5-6 membered heterocycloalkenyl containing 1 double bond containing one or more heteroatoms independently selected from O, N, and S (which heterocycloalkenyl is optionally substituted with one or more independently selected R9 groups),
4-10 membered mono, bi or spirocyclic heterocycloalkyl containing one or more heteroatoms independently selected from O, N, and S (which heterocycloalkyl is optionally substituted with one or more independently selected R9 groups), or
5-6 membered heteroaryl containing one or more heteroatoms independently selected from O, N, and S (which heteroaryl is optionally substituted with one or more independently selected R10 groups),
each R9 is oxo, or R10;
each R10 is:
—OH,
halo,
—CN,
C1-4 alkyl (which alkyl is optionally substituted with one or more independently selected OH, halo, or phenyl),
C1-4 alkoxy,
C3-7 cycloalkyl,
phenyl,
—SO2CH3,
—C(═O)C1-4 alkoxy,
—C(═O)C1-4 alkyl, or
—NRgC(═O)C1-4 alkyl; and
each Ra, Rb, Rc, Rd, Re, Rf, Rg, Rh, Ri, and R10 is independently selected from H and C1-4 alkyl;
or a pharmaceutically acceptable salt, or a solvate, or a pharmaceutically acceptable salt of a solvate thereof.

### Claim 2 (depends on 1)

2) A compound or pharmaceutically acceptable salt thereof, according to claim 1, wherein the compound is according to Formula II:

### Claim 3 (depends on 1)

3) A compound or pharmaceutically acceptable salt thereof, according to claim 1, wherein the compound is according to Formula III:

### Claim 4 (depends on 1)

4) A compound or pharmaceutically acceptable salt thereof, according to claim 1, wherein R5 is —CH3, or —C2H5.

### Claim 5 (depends on 2)

5) A compound or pharmaceutically acceptable salt thereof, according to claim 2, wherein R5 is —CH3, or —C2H5.

### Claim 6 (depends on 3)

6) A compound or pharmaceutically acceptable salt thereof, according to claim 3, wherein R5 is —CH2—CH2—CN, —CH2—CH2—OH, —CH2—CF3, or —CH2—CH2—C(═O)NH2.

### Claim 7 (depends on 1)

7) A compound or pharmaceutically acceptable salt thereof, according to claim 1, wherein Cy is 4-10 membered mono or bicyclic heterocycloalkyl containing one or more heteroatoms independently selected from O, N, and S.

### Claim 8 (depends on 1)

8) A compound or pharmaceutically acceptable salt thereof, according to claim 1, wherein the subscript a is 0.

### Claim 9 (depends on 1)

9) A compound according to claim 1, wherein the compound is according to Formula Va, Vb, Vc, or Vd:

### Claim 10 (depends on 9)

10) A compound or pharmaceutically acceptable salt thereof, according to claim 9, wherein W1 is —CH2—, —CH2—CH2—, —C(CH3)H—, —CH2—CH2—CH2— or —CH2—C(CH3)H—.

### Claim 11 (depends on 10)

11) A compound or pharmaceutically acceptable salt thereof, according to claim 10, wherein G1 is 4-7 membered heterocycloalkyl containing one or more heteroatoms independently selected from O, N, and S, which heterocycloalkyl is substituted with one or two independently selected R9 groups.

### Claim 12 (depends on 11)

12) A compound or pharmaceutically acceptable salt thereof, according to claim 11, wherein R9 is R10 and R10 is selected from OH, F, Cl, and —CN.

### Claim 13 (depends on 12)

13) A compound or pharmaceutically acceptable salt thereof, according to claim 12, wherein R6a is H, —CH3 or F, and R6b is H.

### Claim 14

14) A compound or pharmaceutically acceptable salt thereof, wherein the compound is selected from:
2-((2-ethyl-8-methyl-6-(piperazin-1-yl)imidazo[1,2-a]pyridin-3-yl)(methyl)amino)-4-(4-fluorophenyl)thiazole-5-carbonitrile,
2-((2-ethyl-6-(4-(2-(3-hydroxyazetidin-1-yl)-2-oxoethyl)piperazin-1-yl)-8-methylimidazo[1,2-a]pyridin-3-yl)(methyl)amino)-4-(4-fluorophenyl)thiazole-5-carbonitrile,
2-((2-ethyl-6-(4-(2-(3-hydroxy-3-methylazetidin-1-yl)-2-oxoethyl)piperazin-1-yl)-8-methylimidazo[1,2-a]pyridin-3-yl)(methyl)amino)-4-(4-fluorophenyl)thiazole -5-carbonitrile,
(R)-2-((2-ethyl-6-(4-(2-(3-hydroxypyrrolidin-1-yl)-2-oxoethyl)piperazin-1-yl)-8-methylimidazo[1,2-a]pyridin-3-yl)(methyl)amino)-4-(4-fluorophenyl)thiazole -5-carbonitrile,
(S)-2-(2-ethyl-6-(4-(2-(3-hydroxypyrrolidin-1-yl)-2-oxoethyl)piperazin-1-yl)-8-methylimidazo[1,2-a]pyridin-3-yl)(methyl)amino)-4-(4-fluorophenyl)thiazole -5-carbonitrile,
2-((2-ethyl-6-(4-(2-(3-hydroxyazetidin-1-yl)-2-oxoethyl)-3,3-dimethylpiperazin-1-yl)-8-methylimidazo[1,2-a]pyridin-3-yl)(methyl)amino)-4-(4-fluorophenyl)thiazole -5-carbonitrile,
2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)-8-methylimidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)-1-(3-hydroxyazetidin-1-yl)ethanone,
(R)-2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)-8-methylimidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)-1-(3-hydroxypyrrolidin-1-yl)ethanone,
(S)-2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)-8-methylimidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)-1-(3-hydroxypyrrolidin-1-yl)ethanone,
2-((2-ethyl-6-(1-(2-(3-hydroxyazetidin-1-yl)-2-oxoethyl)piperidin-4-yl)-8-methylimidazo[1,2-a]pyridin-3-yl)(methyl)amino)-4-(4-fluorophenyl)thiazole -5-carbonitrile,
2-(ethyl(2-ethyl-8-methyl -6-(1-(methylsul fonyl)-1,2,3,6-tetrahydropyridin-4-yl)imidazo[1,2-a]pyridin-3-yl)amino)-4-(4-fluorophenyl)thiazole -5-carbonitrile,
2-((2-ethyl-8-fluoro-6-(4-(2-(3-hydroxyazetidin-1-yl)-2-oxoethyl)piperazin-1-yl)imidazo[1,2-a]pyridin-3-yl)(methyl)amino)-4-(4-fluorophenyl)thiazole -5-carbonitrile,
2-(4-(3-((5-cyano-4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)-2-ethyl-8-fluoroimidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)-N-methylacetamide,
2-(4-(2-ethyl-8-fluoro-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)-1-(3-hydroxyazetidin-1-yl)ethanone,
(S)-2-(4-(2-ethyl-8-fluoro-3-((4-(4-fluorophenyl)thiazol -2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)-1-(3-hydroxypyrrolidin-1-yl)ethanone,
(R)-2-(4-(2-ethyl-8-fluoro-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)-1-(3-hydroxypyrrolidin-1-yl)ethanone,
2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)-7-methylimidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)-1-(3-hydroxyazetidin-1-yl)ethanone,
2-[(2-Ethyl-7-fluoro-6-{4-[2-(3-hydroxy-azetidin-1-yl)-2-oxo-ethyl]-piperazin-1-yl }-imidazo[1,2-a]pyridin-3-yl)-methyl-amino]-4-(4-fluoro-phenyl)-thiazole-5-carbonitrile,
2-[4-(2-Ethyl-7-fluoro-3-{[4-(4-fluoro-phenyl)-thiazol-2-yl]-methyl-amino}-imidazo[1,2-a]pyridin-6-yl)-piperazin-1-yl]-1-(3-hydroxy-azetidin-1-yl)-ethanone,
2-[4-(2-Ethyl-7-fluoro-3-{[4-(4-fluoro-phenyl)-thiazol-2-yl]-methyl-amino}-imidazo[1,2-a]pyridin-6-yl)-piperazin-1-yl]-1-(3-hydroxy-pyrrolidin-1-yl)-ethanone,
2-[4-(2-Ethyl-7-fluoro-3-{[4-(4-fluoro-phenyl)-thiazol-2-yl]-methyl-amino }-imidazo[1,2-a]pyridin-6-yl)-piperazin-1-yl]-1-(3-hydroxy-pyrrolidin-1-yl)-ethanone,
2-(4-(3-((5-cyano-4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)-2-ethylimidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)-N-methylacetamide,
tert-butyl 4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazine-1-carboxylate,
2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)-1-(3-hydroxyazetidin-1-yl)ethanone,
(S)-2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)-1-(3-hydroxypyrrolidin-1-yl)ethanone,
(R)-2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)-1-(3-hydroxypyrrolidin-1-yl)ethanone,
N-(1-(2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)acetoyl)pyrrolidin-3-yl)acetamide,
2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)-1-(3-fluoroazetidin-1-yl)ethanone,
1-(3,3-difluoroazetidin-1-yl)-2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)ethanone,
1-(azetidin-1-yl)-2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)ethanone,
2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)-1-(pyrrolidin-1-yl)ethanone,
2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)-1-morpholinoethanone,
2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)acetamide,
2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)-1-(3-(hydroxymethyl)azetidin-1-yl)ethanone,
2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)-N,N-dimethylacetamide,
ethyl 2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)acetate,
ethyl 2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)propanoate,
2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)acetonitrile,
N-(6-(4-((1-cyclopropyl-1H-tetrazol-5-yl)methyl)piperazin-1-yl)-2-ethylimidazo[1,2-a]pyridin-3-yl)-4-(4-fluorophenyl)-N-methylthiazol-2-amine,
N-(2-ethyl-6-(4-(oxazol -2-ylmethyl)piperazin-1-yl)imidazo[1,2-a]pyridin-3-yl)-4-(4-fluorophenyl)-N-methylthiazol-2-amine,
N-(6-(4-((1,2,4-oxadi azol-3-yl)methyl)piperazin-1-yl)-2-ethylimidazo[1,2-a]pyridin-3-yl)-4-(4-fluorophenyl)-N-methylthiazol-2-amine,
2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)acetic acid,
2-hydroxyethyl 4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazine-1-carboxylate,
tert-butyl 2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazine-1-carbonyl)pyrrolidine-1-carboxylate,
tert-butyl 3-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazine-1-carbonyl)pyrrolidine-1-carboxylate,
(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)(pyrrolidin-2-yl)methanone,
(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)(pyrrolidin-3-yl)methanone,
1-(3-(4-(2-ethyl-3-((4-(4-fluorophenyl) thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazine-1-carbonyl)pyrrolidin-1-yl)ethanone,
(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)(1-(methyl sulfonyl)pyrrolidin-3-yl)methanone,
1-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)-2-hydroxyethanone,
1-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)propan-1-one,
1-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)-4-hydroxybutan-1-one,
4-(dimethylamino)-1-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)butan-1-one,
N-(2-ethyl-6-(4-(methyl sulfonyl)piperazin-1-yl)imidazo[1,2-a]pyridin-3-yl)-4-(4-fluorophenyl)-N-methylthiazol-2-amine,
N-(6-(4-(3-chloropropylsulfonyl)piperazin-1-yl)-2-ethylimidazo[1,2-a]pyridin-3-yl)-4-(4-fluorophenyl)-N-methylthiazol-2-amine,
N-(6-(4-(3-(dimethylamino)propylsulfonyl)piperazin-1-yl)-2-ethylimidazo[1,2-a]pyridin-3-yl)-4-(4-fluorophenyl)-N-methylthiazol-2-amine,
N-(2-ethyl-6-(4-(3-(pyrrolidin-1-yl)propylsulfonyl)piperazin-1-yl)imidazo[1,2-a]pyridin-3-yl)-4-(4-fluorophenyl)-N-methylthiazol-2-amine,
3-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl sulfonyl)propan-1-ol,
methyl 2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl sulfonyl)acetate,
2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl sulfonyl)acetic acid,
2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl sulfonyl)acetamide,
tert-butyl 4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)-3-oxopiperazine-1-carboxylate,
tert-butyl 4-(3-((4(4-chlorophenyl)thiazol-2-yl)(methyl)amino)-2-ethylimidazo[1,2-a]pyridin-6-yl)-3-oxopiperazine -1-carboxylate,
ethyl 2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)-3-oxopiperazin-1-yl)acetate,
1-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)-4-(methylsulfonyl)piperazin-2-one,
N-(2-ethyl-6-(1-(methylsulfonyl)-1,2,3,6-tetrahydropyridin-4-yl)imidazo[1,2-a]pyridin-3-yl)-4-(4-fluorophenyl)-N-methylthiazol-2-amine,
N-(6-(1-(chloromethylsulfonyl)-1,2,3,6-tetrahydropyridin-4-yl)-2-ethylimidazo[1,2-a]pyridin-3-yl)-4-(4-fluorophenyl)-N-methylthiazol-2-amine,
4-(4-chlorophenyl)-N-(2-ethyl-6-(1-(methylsulfonyl)-2,5-dihydro-1H-pyrrol-3-yl)imidazo[1,2-a]pyridin-3-yl)-N-methylthiazol-2-amine,
4-(4-chlorophenyl)-N-(2-ethyl-6-(1-(methylsulfonyl)-1,4,5,6-tetrahydropyridin-3-yl)imidazo[1,2-a]pyridin-3-yl)-N-methylthiazol-2-amine,
4-(4-tert-butylphenyl)-N-(2-ethyl-6-(1-(methylsulfonyl)-1,2,3,6-tetrahydropyridin-4-yl)imidazo[1,2-a]pyridin-3-yl)-N-methylthiazol-2-amine,
N-(2-ethyl-6-(1-(methylsulfonyl)-1,2,3,6-tetrahydropyridin-4-yl)imidazo[1,2-a]pyridin-3-yl)-4-(4-methoxyphenyl)-N-methylthiazol-2-amine,
N-(2-ethyl-6-(1-(methylsulfonyl)-1,2,3,6-tetrahydropyridin-4-yl)imidazo[1,2-a]pyridin-3-yl)-N-methyl-4-(4-(trifluoromethoxy)phenyl)thiazol-2-amine,
4-(3,4-difluorophenyl)-N-(2-ethyl-6-(1-(methyl sulfonyl)-1,2,3,6-tetrahydropyridin-4-yl)imidazo[1,2-a]pyridin-3-yl)-N-methylthiazol-2-amine,
3-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)-5,6-dihydropyridin-1(2H)-yl sulfonyl)propyl acetate,
3-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)-5,6-dihydropyridin-1(2H)-yl sulfonyl)propan-1-ol,
4-(2-ethyl-3-((4-(4-chlorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)-3,6-dihydro-2H-thiopyran 1,1-dioxide,
N-(2-ethyl-6-(1-(methylsulfonyl)-1,2,3,6-tetrahydropyridin-4-yl)imidazo[1,2-a]pyridin-3-yl)-5-fluoro-4-(4-fluorophenyl)-N-methylthiazol-2-amine,
tert-butyl 4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)-3-hydroxypiperidine-1-carboxylate,
4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)-1-(methylsulfonyl)piperidin-3-ol,
N-(2-ethyl-6-(1-(methylsulfonyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)-4-(4-fluorophenyl)-N-methylthiazol-2-amine,
4-(4-tert-butylphenyl)-N-(2-ethyl-6-(1-(methylsulfonyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)-N-methylthiazol-2-amine,
N-(2-ethyl-6-(1-(methylsulfonyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)-4-(4-methoxyphenyl)-N-methylthiazol-2-amine,
4-(3,4-difluorophenyl)-N-(2-ethyl-6-(1-(methylsulfonyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)-N-methylthiazol-2-amine,
N-(2-ethyl-6-(1-(methylsulfonyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)-N-methyl-4-(4-(trifluoromethyl)phenyl)thiazol-2-amine,
N-(2-ethyl-6-(1-(methylsulfonyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)-N-methyl-4-(4-(trifluoromethoxy)phenyl)thiazol-2-amine,
N-(6-(1-(3-chloropropylsulfonyl)piperidin-4-yl)-2-ethylimidazo[1,2-a]pyridin-3-yl)-4-(4-fluorophenyl)-N-methylthiazol-2-amine,
N-(6-(1-(3-(dimethylamino)propylsulfonyl)piperidin-4-yl)-2-ethylimidazo[1,2-a]pyridin-3-yl)-4-(4-fluorophenyl)-N-methylthiazol-2-amine,
N-(2-ethyl-6-(1-(3-morpholinopropylsulfonyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)-4-(4-fluorophenyl)-N-methylthiazol-2-amine,
N-(2-ethyl-6-(1-(3-(pyrrolidin-1-yl)propylsulfonyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)-4-(4-fluorophenyl)-N-methylthiazol-2-amine,
N-(6-(1-(3-aminopropylsulfonyl)piperidin-4-yl)-2-ethylimidazo[1,2-a]pyridin-3-yl)-4-(4-fluorophenyl)-N-methylthiazol-2-amine,
N-(2-ethyl-6-(1-(2-morpholinoethylsulfonyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)-4-(4-fluorophenyl)-N-methylthiazol-2-amine,
4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidine-1-sulfonamide,
3-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl sulfonyl)propyl acetate,
3-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-ylsulfonyl)propan-1-ol,
3-(4-(2-ethyl-3-((5-fluoro-4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-ylsulfonyl)propan-1-ol,
2-(2-((2-ethyl-6-(1-(methylsulfonyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)(methyl)amino)thiazol-4-yl)-5-fluorobenzonitrile,
2-(2-((2-ethyl-6-(1-(methylsulfonyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)(methyl)amino)-5-methylthiazol-4-yl)-5-fluorobenzonitrile,
N-(2-ethyl-6-(1-(methylsulfonyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)-4-(4-fluoro-2-methylphenyl)-N-methylthiazol-2-amine,
4-(2-chloro -4-fluorophenyl)-N-(2-ethyl-6-(1-(methylsulfonyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)-N-methylthiazol-2-amine,
4-(2,4-difluorophenyl)-N-(2-ethyl-6-(1-(methylsulfonyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)-N-methylthiazol-2-amine,
N-(2-ethyl-6-(1-(methylsulfonyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)-4-(4-fluorophenyl)-N,5-dimethylthiazol-2-amine,
4-(4-fluorophenyl)-N-(2-ethyl-6-(1-(methylsulfonyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)-N-(d3-methyl)thiazol-2-amine,
4-(4-fluorophenyl)-N-(2-ethyl-6-(1-(methylsulfonyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)-N-(d3-methyl)-(d-thiazol -2)-amine,
methyl 2-((2-ethyl-6-(1-(methylsulfonyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)(methyl)amino)-4-(4-fluorophenyl)thiazole -5-carboxylate,
1-(2-((2-ethyl-6-(1-(methylsulfonyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)(methyl)amino)-4-(4-fluorophenyl)thiazol-5-yl)ethanone,
N-(2-(2-((2-ethyl-6-(1-(methylsulfonyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)(methyl)amino)thiazol-4-yl)-5-fluorophenypacetamide,
(2-(2-((2-ethyl-6-(1-(methylsulfonyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)(methyl)amino)thiazol-4-yl)-5-fluorophenyl)methanol,
ethyl 2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)-5,6-dihydropyridin-1(2H)-yl)acetate,
ethyl 2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)acetate,
2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)-1-(3-hydroxyazetidin-1-yl)ethanone,
(R)-2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol -2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)-1-(3-hydroxypyrrolidin-1-yl)ethanone,
(S)-2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)-1-(3-hydroxypyrrolidin-1-yl)ethanone,
2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)-1-(3-(hydroxymethyl)azetidin-1-yl)ethanone,
2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)-N,N-dimethylacetamide,
2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)-1-(pyrrolidin-1-yl)ethanone,
(S)-1-(2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)acetoyl)pyrrolidine -3-carbonitrile,
2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)-1-(3-(hydroxymethyl)pyrrolidin-1-yl)ethanone,
4-((4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol -2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)methyl)-1,3-dioxolan-2-one,
2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)-N-(2-hydroxyethyl)-N-methylacetamide,
2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)-N-methoxy-N-methylacetamide,
N-(cyanomethyl)-2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)-N-methylacetamide,
5-((4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)methyl)oxazolidin-2-one,
2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)-N-(3-hydroxypropyl)acetamide,
1-(3,3-difluoroazetidin-1-yl)-2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)ethanone,
2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)acetamide,
1-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)-2-(pyrrolidin-1-yl)ethanone,
1-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)-2-(methylamino)ethanone,
1-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)-2-(3-hydroxyazetidin-1-yl)ethanone,
2-(dimethylamino)-1-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)ethanone,
3-(dimethylamino)-1-(4-(2-ethyl-3-((4-(4-fluorophenyl) thiazol -2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)propan-1-one,
2-(3,3-difluoroazetidin-1-yl)-1-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)ethanone,
1-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)-3-(methylamino)propan-1-one,
1-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)-2-(3-fluoroazetidin-1-yl)ethanone,
1-(3-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)azetidin-1-yl)ethanone,
5-bromo -N-(2-ethyl-6-(1-(methylsulfonyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)-4-(4-fluorophenyl)-N-methylthiazol-2-amine,
2-((2-ethyl-6-(1-(methylsulfonyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)(methyl)amino)-4-(4-fluorophenyl)thiazole-5-carbonitrile,
2-((2-ethyl-6-(1-(methylsulfonyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)(methyl)amino)-4-(4-fluorophenyl)thiazole-5-carboxamide,
2-((2-ethyl-6-(4-(2-(3-hydroxyazetidin-1-yl)-2-oxoethyl)piperazin-1-yl)imidazo[1,2-a]pyridin-3-yl)(methyl)amino)-4-(4-fluorophenyl)thiazole -5-carbonitrile,
2-((2-ethyl-6-(4-(2-(3-(hydroxymethyl)azetidin-1-yl)-2-oxoethyl)piperazin-1-yl)imidazo[1,2-a]pyridin-3-yl)(methyl)amino)-4-(4-fluorophenyl)thiazole-5-carbonitrile,
2-(4-(3-((5-cyano-4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)-2-ethylimidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)-N,N-dimethylacetamide,
2-((2-ethyl-6-(1-(2-(3-hydroxyazetidin-1-yl)-2-oxoethyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)(methyl)amino)-4-(4-fluorophenyl)thiazole-5-carbonitrile,
(R)-2-((2-ethyl-6-(1-(2-(3-hydroxypyrrolidin-1-yl)-2-oxoethyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)(methyl)amino)-4-(4-fluorophenyl)thiazole -5-carbonitrile,
(S)-2-((2-ethyl-6-(1-(2-(3-hydroxypyrrolidin-1-yl)-2-oxoethyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)(methyl)amino)-4-(4-fluorophenyl)thiazole-5-carbonitrile,
2-((2-ethyl-6-(1-(2-(3-(hydroxymethyl)azetidin-1-yl)-2-oxoethyl)piperidin-4-ypimidazo[1,2-a]pyridin-3-yl)(methyl)amino)-4-(4-fluorophenyl)thiazole-5-carbonitrile,
2-(4-(3-((5-cyano-4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)-2-ethylimidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)-N,N-dimethylacetamide,
2-(4-(2-ethyl-3-((4-(4-fluorophenyl)-5-(hydroxymethyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)-1-(3-(hydroxymethyl)azetidin-1-yl)ethanone,
(2-((2-ethyl-6-(1-(methylsulfonyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)(methyl)amino)-4-(4-fluorophenyl)thiazol-5-yl)methanol,
(2-((2-ethyl-6-(1-(methylsulfonyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)(methyl)amino)-4-(4-(trifluoromethoxy)phenyl)thiazol-5-yl)methanol,
(2-((6-(1-(3-(dimethylamino)propylsulfonyl)piperidin-4-yl)-2-ethylimidazo[1,2-a]pyridin-3-yl)(methyl)amino)-4-(4-fluorophenyl)thiazol-5-yl),
(2-((2-ethyl-6-(1-(methylsulfonyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)(methyl)amino)-4-(4-(trifluoromethyl)phenyl)thiazol-5-yl)methanol,
2-(4-(2-ethyl-3-((4-(4-fluorophenyl)-5-(hydroxymethyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)-1-(pyrrolidin-1-yl)ethanone,
2-(4-(2-ethyl-3-((4-(4-fluorophenyl)-5-(hydroxymethyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)-1-(3-(hydroxymethyl)azetidin-1-yl)ethanone,
2-(dimethylamino)-1-(4-(2-ethyl-3-((4-(4-fluorophenyl)-5-(hydroxymethyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)ethanone,
1-(4-(2-ethyl-3-((4-(4-fluorophenyl)-5-(hydroxymethyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)propan-1-one,
2-(4-(2-ethyl-3-((4-(4-fluorophenyl)-5-(hydroxymethyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)-N,N-dimethylacetamide,
2-(4-(2-ethyl-3-((4-(4-fluorophenyl)-5-(hydroxymethyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)-1-(3-hydroxyazetidin-1-yl)ethanone,
2-(4-(2-ethyl-3-((4-(4-fluorophenyl)-5-(hydroxymethyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)-N,N-dimethylacetamide,
2-(4-(2-ethyl-3-(4-fluorophenyl)-5-(2,2,2-trifluoroacetoyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)-N,N-dimethylacetamide,
1-(2-((2-ethyl-6-(1-(2-(3-hydroxyazetidin-1-yl)-2-oxoethyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)(methyl)amino)-4-(4-fluorophenyl)thiazol-5-yl)-2,2,2-trifluoroethanone,
1-(2-((2-ethyl-6-(1-(methylsulfonyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)(methyl)amino)-4-(4-fluorophenyl)thiazol-5-yl)-2,2,2-trifluoroethanone,
2-(2-((2-ethyl-6-(piperazin-1-yl)imidazo[1,2-a]pyridin-3-yl)(methyl)amino)-5-methylthiazol-4-yl)-5-fluorobenzonitrile,
2-(2-((2-ethyl-6-(4-(2-(3-hydroxyazetidin-1-yl)-2-oxoethyl)piperazin-1-yl)imidazo[1,2-a]pyridin-3-yl)(methyl)amino)-5-methylthiazol-4-yl)-5-fluorobenzonitrile,
2-(4-(3-(2-cyano -4-fluorophenyl)-5-methylthiazol-2-yl)(methyl)amino)-2-ethylimidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)-N-methylacetamide,
2-(2-((2-ethyl-6-(4-(2-(3-fluoroazetidin-1-yl)-2-oxoethyl)piperazin-1-yl)imidazo[1,2-a]pyridin-3-yl)(methyl)amino)thiazol-4-yl)-5-fluorobenzonitrile,
2-(2-((6-(4-(2-(3,3-difluoroazetidin-1-yl)-2-oxoethyl)piperazin-1-yl)-2-ethylimidazo[1,2-a]pyridin-3-yl)(methyl)amino)thiazol-4-yl)-5-fluorobenzonitrile,
2-(2-((2-ethyl-6-(4-(2-(3-hydroxyazetidin-1-yl)-2-oxoethyl)piperazin-1-yl)imidazo[1,2-a]pyridin-3-yl)(methyl)amino)thiazol-4-yl)-5-fluorobenzonitrile,
2-(2-((6-(4-(2-(azetidin-1-yl)-2-oxoethyl)piperazin-1-yl)-2-ethylimidazo[1,2-a]pyridin-3-yl)(methyl)amino)thiazol-4-yl)-5-fluorobenzonitrile,
2-(4-(3-((4-(2-cyano -4-fluorophenyl)thiazol-2-yl)(methyl)amino)-2-ethylimidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)-N,N-dimethylacetamide,
2-(4-(3-((4-(2-cyano -4-fluorophenyl)thiazol-2-yl)(methyl)amino)-2-ethylimidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)-N-methylacetamide,
2-(2-((2-ethyl-6-(1-(2-(3-hydroxyazetidin-1-yl)-2-oxoethyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)(methyl)amino)thiazol-4-yl)-5-fluorobenzonitrile,
2-(4-(3-((4-(2-cyano -4-fluorophenyl)thiazol-2-yl)(methyl)amino)-2-ethylimidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)-N,N-dimethylacetamide,
2-(2-((2-ethyl-6-(1-(2-(3-hydroxyazetidin-1-yl)-2-oxoethyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)(methyl)amino)-5-methylthiazol-4-yl)-5-fluorobenzonitrile,
2-(5-((2-ethyl-6-(1-(2-(3-hydroxyazetidin-1-yl)-2-oxoethyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)(methyl)amino)-1,2,4-thiadiazol-3-yl)-5-fluorobenzonitrile,
2-(4-(2-(2-cyanoethyl)-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)-N,N-dimethylacetamide,
3-(3-((4-(4-fluorophenyl)-5-(hydroxymethyl)thiazol -2-yl)(methyl)amino)-6-(1-(methylsulfonyl)piperidin-4-yl)imidazo[1,2-a]pyridin-2-yl)propanenitrile,
3-(6-(1-(2-(dimethylamino)-2-oxoethyl)piperidin-4-yl)-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-2-yl)propanamide,
N-(6-(3-aminoazetidin-1-yl)-2-ethylimidazo[1,2-a]pyridin-3-yl)-4-(4-fluorophenyl)-N-methylthiazol-2-amine,
2-(1-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)azetidin-3-ylamino)-1-(3-hydroxyazetidin-1-yl)ethanone,
N-(1-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)azetidin-3-yl)-2-(3-hydroxyazetidin-1-yl)acetamide,
2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-ypethanol,
N-(2-ethyl-6-morpholinoimidazo[1,2-a]pyridin-3-yl)-4-(4-fluorophenyl)-N-methylthiazol-2-amine,
4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)-thiomorpholine1,1-dioxide,
1-(3-((4-(4-chlorophenyl)thiazol -2-yl)(methyl)amino)-2-ethylimidazo[1,2-a]pyridin-6-yl)imidazolidin-2-one,
ethyl 2-(3-(3-((4(4-chlorophenyl)thiazol -2-yl)(methyl)amino)-2-ethylimidazo[1,2-a]pyridin-6-yl)-2-oxoimidazolidin-1-yl)acetate,
4-(4-chlorophenyl)-N-methyl-N-(6-(1-(methylsulfonyl)-1,2,3,6-tetrahydropyridin-4-yl)-2-(2,2,2-trifluoroethyl)imidazo[1,2-a]pyridin-3-yl)thiazol-2-amine,
2-(2-((2-ethyl-6-(1-(methylsulfonyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)(methyl)amino)-4-(4-fluorophenyl)thiazol -5-yl)acetonitrile,
2-ethyl -N-(4-(4-fluorophenyl)pyrimidin-2-yl)-N-methyl-6-(1-(methylsulfonyl)-1,2,3,6-tetrahydropyridin-4-yl)imidazo[1,2-a]pyridin-3-amine,
3-(4-chlorophenyl)-N-(2-ethyl-6-(4-(methylsulfonyl)piperazin-1-yl)imidazo[1,2-a]pyridin-3-yl)-N-methyl-1,2,4-thiadiazol-5-amine,
N-(2-ethyl-6-(1-(methylsulfonyl)-1,2,3,6-tetrahydropyridin-4-yl)imidazo[1,2-a]pyridin-3-yl)-3-(4-fluorophenyl)-N-methyl-1,2,4-oxadiazol-5-amine,
2-(4-(2-ethyl-3-((3-(4-fluorophenyl)-1,2,4-thiadiazol-5-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)-5,6-dihydropyridin-1(2H)-yl)-N,N-dimethylacetamide,
2-(4-(2-ethyl-3-((3-(4-fluorophenyl)-1,2,4-thiadiazol-5-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)-N,N-dimethylacetamide,
N-(6-(4-((1H-imidazol-5-yl)methyl)piperazin-1-yl)-2-ethylimidazo[1,2-a]pyridin-3-yl)-4-(4-fluorophenyl)-N-methylthiazol-2-amine,
N-(2-ethyl-6-(1-(methylsulfonyl)-1,2,3,6-tetrahydropyridin-4-yl)imidazo[1,2-a]pyridin-3-yl)-N-methyl-4-(4-(trifluoromethyl)phenyl)thiazol-2-amine,
N-cyclopropyl-2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol -2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)acetamide,
5-((4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)methyl)-3-methyloxazolidin-2-one,
(R)-5-((4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)methyl)oxazolidin-2-one,
(S)-5-((4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)methyl)oxazolidin-2-one,
4-((4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)methyl)oxazolidin-2-one,
N-(2-ethyl-6-(1-(methylsulfonyl)-1,2,3,6-tetrahydropyridin-4-yl)imidazo[1,2-a]pyridin-3-yl)-3-(4-fluorophenyl)-N-methyl-1,2,4-thiadiazol-5-amine,
1-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)propane-1,2-dione,
5-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazine-1-carbonyl)pyrrolidin-2-one,
(1-aminocyclopropyl)(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)methanone,
(S)-1-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)-2-hydroxypropan-1-one,
2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)-2-oxoacetamide,
1-benzyl-4-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazine-1-carbonyl)pyrrolidin-2-one,
3-(3-((4-(4-chlorophenyl)thiazol-2-yl)(methyl)amino)-2-ethylimidazo[1,2-a]pyridin-6-yl)oxazolidin-2-one,
2-(2-ethyl-3-((4-(4-chlorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)-1-[1,2]thiazinane-1,1-dioxide,
4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)-N-(thiophen-2-yl)-5,6-dihydropyridine-1(2H)-carboxamide,
4-(4-chlorophenyl)-N-(2-ethyl-6-(1-(methylsulfonyl)-1,2,3,6-tetrahydropyridin-4-yl)imidazo[1,2-a]pyridin-3-yl)-N-methylthiazol-2-amine,
4-(4-chlorophenyl)-N-(2-ethyl-6-(1-(trifluoromethylsulfonyl)-1,2,3,6-tetrahydropyridin-4-yl)imidazo[1,2-a]pyridin-3-yl)-N-methylthiazol-2-amine,
1-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-4-ol,
2-(4-(3-((4-(4-chlorophenyl)thiazol-2-yl)(methyl)amino)-2-ethylimidazo[1,2-a]pyridin-6-yl)piperazin-1-ypethanol,
4-(2-ethyl-3-((4-(4-chlorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)-thiomorpholine-1,1-dioxide,
tert-butyl 4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)-5,6-dihydropyridine-1(2H)-carboxylate,
1-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)propan-1-one,
N-(2-ethyl-6-(piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)-4-(4-fluorophenyl)-N-methylthiazol-2-amine,
N-(6-(1-benzylpiperidin-4-yl)-2-ethylimidazo[1,2-a]pyridin-3-yl)-4-(4-fluorophenyl)-N-methylthiazol-2-amine,
N-(2-ethyl-6-(1-isopropylpiperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)-4-(4-fluorophenyl)-N-methylthiazol-2-amine,
tert-butyl 4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidine-1-carboxylate,
N-(6-(3,6-dihydro-2H-pyran-4-yl)-2-ethylimidazo[1,2-a]pyridin-3-yl)-4-(4-fluorophenyl)-N-methylthiazol-2-amine,
4-(4-chlorophenyl)-N-(6-(3,6-dihydro-2H-pyran-4-yl)-2-ethylimidazo[1,2-a]pyridin-3-yl)-N-methylthiazol-2-amine,
(2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)-4,5-dihydrooxazol-5-yl)methanol,
2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperidin-1-yl)-1-(3-hydroxypyrrolidin-1-yl)ethanone,
2-(2-((2-ethyl-6-(1-(methylsulfonyl)piperidin-4-yl)imidazo[1,2-a]pyridin-3-yl)(methyl)amino)thiazol-4-yl)-5-fluorophenol,
tert-butyl 4-(3-((3-(4-chlorophenyl)-1,2,4-thiadiazol -5-yl)(methyl)amino)-2-ethylimidazo[1,2-a]pyridin-6-yl)piperazine -1-carboxylate,
N-(6-(4-((1H-imidazol-2-yl)methyl)piperazin-1-yl)-2-ethylimidazo[1,2-a]pyridin-3-yl)-4-(4-fluorophenyl)-N-methylthiazol-2-amine,
cyclopropyl(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)methanone,
ethyl 2-(4-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)piperazin-1-yl)-2-oxoacetate,
[6-(1,1-Dioxo-isothiazolidin-2-yl)-2-ethyl-imidazo[1,2-a]pyridin-3-yl]-[4-(4-fluoro-phenyl)-thiazol-2-yl]-methyl-amine,
tert-butyl 4-(3-((4-(4-chlorophenyl)thiazol-2-yl)(methyl)amino)-2-ethylimidazo[1,2-a]pyridin-6-yl)-5,6-dihydropyridine-1(2H)-carboxylate,
4-(4-chlorophenyl)-N-(6-(3,6-dihydro-2H-thiopyran-4-yl)-2-ethylimidazo[1,2-a]pyridin-3-yl)-N-methylthiazol-2-amine,
N-(6-(4,4-difluoropiperidin-1-yl)-2-ethylimidazo[1,2-a]pyridin-3-yl)-4-(4-fluorophenyl)-N-methylthiazol-2-amine,
N-(6-(1-(3-chloropropylsulfonyl)-1,2,3,6-tetrahydropyridin-4-yl)-2-ethylimidazo[1,2-a]pyridin-3-yl)-4-(4-fluorophenyl)-N-methylthiazol-2-amine,
tert-butyl 4-(3-((4-(4-chlorophenyl)thiazol-2-yl)(methyl)amino)-2-ethylimidazo[1,2-a]pyridin-6-yl)piperazine-1-carboxylate,
N-(6-(1-(cyclohexylmethyl)piperidin-4-yl)-2-ethylimidazo[1,2-a]pyridin-3-yl)-4-(4-fluorophenyl)-N-methylthiazol-2-amine,
N-(2-ethyl-6-(5-methyl-4,5-dihydrooxazol-2-yl)imidazo[1,2-a]pyridin-3-yl)-4-(4-fluorophenyl)-N-methylthiazol-2-amine,
N-(2-ethyl-6-(4-methyl-4,5-dihydrooxazol-2-yl)imidazo[1,2-a]pyridin-3-yl)-4-(4-fluorophenyl)-N-methylthiazol-2-amine,
2-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)-4,5-dihydrooxazole-4-carboxylic acid,
(2-(2-ethyl-3-((4-(4-fluorophenyl)thiazol-2-yl)(methyl)amino)imidazo[1,2-a]pyridin-6-yl)-4,5-dihydrooxazol-4-yl)methanol, and
4-(4-chlorophenyl)-N-(6-(4,5-dihydrooxazol-2-yl)-2-ethylimidazo[1,2-a]pyridin-3-yl)-N-methylthiazol-2-amine.

### Claim 15 (depends on 1)

15) A pharmaceutical composition comprising a pharmaceutically acceptable carrier and a pharmaceutically effective amount of a compound or pharmaceutically acceptable salt thereof according to claim 1.

### Claim 16 (depends on 15)

16) A pharmaceutical composition according to claim 15, comprising a further therapeutic agent.

### Claim 17 (depends on 1)

17) A method of inhibiting ectonucleotide pyrophosphatase/phosphodiesterase 2 (ENPP2), which method comprises contacting the ENPP2 with a compound or pharmaceutically acceptable salt thereof according to claim 1.

### Claim 18 (depends on 1)

18) A method of treating fibrotic diseases, proliferative diseases, inflammatory diseases, autoimmune diseases, respiratory diseases, cardiovascular diseases, neurodegenerative diseases, dermatological disorders, and/or abnormal angiogenesis associated diseases, which method comprising administering to a subject in need thereof a compound or pharmaceutically acceptable salt thereof, according to claim 1.

### Claim 19 (depends on 18)

19) A method according to claim 18, wherein the compound or pharmaceutically acceptable salt thereof is administered in combination with a further therapeutic agent.

### Claim 20 (depends on 19)

20) The method according to claim 19, wherein the further therapeutic agent is for the treatment of fibrotic diseases, proliferative diseases, inflammatory diseases, autoimmune diseases, respiratory diseases, cardiovascular diseases, neurodegenerative diseases, dermatological disorders, and/or abnormal angiogenesis associated diseases.