# US 11,078,199 B2 · Quinolone derivatives as fibroblast growth factor receptor inhibitors

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- Number: US 11,078,199 B2
- Document ID: US11078199B2
- Status: Granted
- Kind: B2
- Application number: 16/383,237
- Filed: 2019-04-12
- Published: 2019-08-01
- Granted: 2021-08-03
- Earliest claimed: 2014-02-07
- Assignees: Principia Biopharma Inc.
- Applicants: Principia Biopharma, Inc.
- Inventors: Erik Verner; Kenneth Albert Brameld
- Web page: https://patentgrep.com/patent/US11078199B2

## CPC

- C07D 471/04: Ortho-condensed systems
- A61K 31/519: ortho- or peri-condensed with heterocyclic rings
- A61K 31/5377: not condensed and containing further heterocyclic rings, e.g. timolol
- A61K 45/06: Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
- A61P 35/00: Antineoplastic agents
- A61P 43/00: Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
- C07D 487/04: Ortho-condensed systems
- C07D 519/00: Heterocyclic compounds containing more than one system of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring system not provided for in groups C07D453/00 or C07D455/00
- 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

Compounds that are Fibroblast Growth Factor Inhibitors (FGFR) and are therefore useful for the treatment of diseases treatable by inhibition of FGFR are disclosed. Also disclosed are pharmaceutical compositions containing such compounds and processes for preparing such compounds.

## Claims

### Claim 1

A method of treating a cancer selected from breast cancer, gastric cancer, head and neck cancer, and 8,11-myeloproliferative syndrome, in a patient which method comprises administering to the patient in recognized need thereof, a pharmaceutical composition comprising a compound of Formula (III):
and/or a pharmaceutically acceptable salt thereof;
wherein:
J is N;
J′ is CH;
Ar is phenyl optionally substituted with one, two, three, or four substituents independently selected from hydroxy, alkoxy, and halo;
R2 is hydrogen, alkyl, alkynyl, haloalkyl, cycloalkyl optionally substituted with hydroxy, cycloalkylalkyl, hydroxyalkyl, alkoxyalkyl, alkoxyalkyloxyalkyl, heterocyclyl, or heterocyclylalkyl; and
(i) Q is alkylene or substituted alkylene; and
X is a group of formula (a):
wherein:
R3 is hydrogen, alkyl, or hydroxy;
R4 is hydrogen, alkyl, or hydroxy;
Y is —CO—;
Rc is hydrogen, alkyl, or substituted alkyl; and
Rd is hydrogen or alkyl; or
Rd and the hydrogen atom on carbon attached to group Y can form a bond to give a triple bond
and a pharmaceutically acceptable excipient, optionally administered in combination with at least one other anticancer agent.

### Claim 2 (depends on 1)

The method of claim 1, wherein the at least one other anticancer agent is selected from EGFR, MET, VEGFR, PI3K, MTOR, MEK, Proteasome, or Ubiquitin Ligase inhibitors.

### Claim 3 (depends on 1)

The method of claim 1, wherein in Formula (III), Q is n-propylene.

### Claim 4 (depends on 1)

The method of claim 1, wherein
in -Q-X of formula

### Claim 5 (depends on 1)

The method of claim 1, wherein in Formula (III), R2 is hydrogen, alkyl, or alkynyl.

### Claim 6 (depends on 1)

The method of claim 1, wherein in Formula (III), R2 is alkyl.

### Claim 7 (depends on 1)

The method of claim 1, wherein in Formula (III), Ar is phenyl optionally substituted with one, two, three, or four substituents independently selected from alkoxy, and halo.

### Claim 8 (depends on 1)

The method of claim 1, wherein in Formula (III), Ar is 3-methoxyphenyl, 2-halo-3-methoxyphenyl, 2-halo-5-methoxyphenyl, 2-halo-3,5-dimethoxyphenyl, 2,6-dihalo-3,5-dimethoxyphenyl, 2,6-dihalo-3-hydroxy-5-methoxyphenyl, 3,5-dimethoxyphenyl, 2-halophenyl, or 2,6-dihalophenyl.

### Claim 9 (depends on 1)

The method of claim 1, wherein in Formula (III), Ar is 2-chloro-3,5-dimethoxy-phenyl, 3,5-dimethoxyphenyl, 2-chlorophenyl, 2,6-dichloro-3-hydroxy-5-methoxyphenyl, or 2,6-dichloro-3,5-dimethoxyphenyl.

### Claim 10 (depends on 1)

The method of claim 1, wherein in Formula (III), Y is —CO— and Rc and Rd are hydrogen.

### Claim 11 (depends on 1)

The method of claim 1, wherein in Formula (III), Y is —CO—, Rc is alkyl and Rd is hydrogen.

### Claim 12 (depends on 1)

The method of claim 1, wherein in Formula (III), Rd and the hydrogen atom on carbon attached to group Y form a bond to give a triple bond.

### Claim 13

A method of treating a cancer selected from breast cancer, gastric cancer, head and neck cancer, and 8,11-myeloproliferative syndrome, in a patient, which method comprises administering to the patient in recognized need thereof, a pharmaceutical composition comprising a compound selected from:
8-(2-(4-acryloylpiperazin-1-yl)ethyl)-6-(2-chloro-3,5-dimethoxyphenyl)-2-(methylamino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(2-(4-acryloylpiperazin-1-yl)ethyl)-6-(2,6-dichloro-3,5-dimethoxyphenyl)-2-(methylamino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2-chloro-3,5-dimethoxyphenyl)-2-(methylamino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2,6-dichloro-3,5-dimethoxyphenyl)-2-(methylamino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-2-((cyclopropylmethyl)amino)-6-(2,6-dichloro-3,5-dimethoxyphenyl)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2,6-dichloro-3,5-dimethoxyphenyl)-2-(ethylamino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2,6-dichloro-3,5-dimethoxyphenyl)-2-(2-hydroxy-2-methylpropyl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2,6-dichloro-3,5-dimethoxyphenyl)-2-(2-hydroxyethyl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2,6-dichloro-3,5-dimethoxyphenyl)-2-(isopropylamino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2,6-dichloro-3,5-dimethoxyphenyl)-2-(prop-2-yn-1-ylamino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2-chloro-3,5-dimethoxyphenyl)-2-(2-hydroxy-2-methylpropyl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2-chloro-3,5-dimethoxyphenyl)-2-(prop-2-yn-1-ylamino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-2-((cyclopropylmethyl)amino)-6-(2-chloro-3,5-dimethoxyphenyl)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2-chloro-3,5-dimethoxyphenyl)-2-(2-hydroxyethyl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-((2R,6S)-4-acryloyl-2,6-dimethylpiperazin-1-yl)propyl)-6-(2-chloro-3,5-dimethoxyphenyl)-2-(methylamino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-((3 S,5R)-4-acryloyl-3,5-dimethylpiperazin-1-yl)propyl)-6-(2-chloro-3,5-dimethoxyphenyl)-2-(methylamino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-((3 S,5R)-4-acryloyl-3,5-dimethylpiperazin-1-yl)propyl)-6-(2,6-dichloro-3,5-dimethoxyphenyl)-2-(methylamino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-((1-((4-acryloylpiperazin-1-yl)methyl)cyclopropyl)methyl)-6-(2,6-dichloro-3,5-dimethoxyphenyl)-2-(methylamino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-((1-((4-acryloylpiperazin-1-yl)methyl)cyclopropyl)methyl)-6-(2-chloro-3,5-dimethoxyphenyl)-2-(methylamino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-((2R,6S)-4-acryloyl-2,6-dimethylpiperazin-1-yl)propyl)-6-(2,6-dichloro-3,5-dimethoxyphenyl)-2-(methylamino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)-2,2-dimethylpropyl)-6-(2,6-dichloro-3,5-dimethoxyphenyl)-2-(methylamino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)-2,2-dimethylpropyl)-6-(2-chloro-3,5-dimethoxyphenyl)-2-(methylamino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2-chloro-3,5-dimethoxyphenyl)-2-(2,2-difluoroethyl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2-chloro-3,5-dimethoxyphenyl)-2-((tetrahydro-2H-pyran-4-yl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2,6-di chloro-3,5-dimethoxyphenyl)-2-((tetrahydro-2H-pyran-4-yl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
(S)-8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2,6-dichloro-3,5-dimethoxyphenyl)-2-(1-methoxypropan-2-yl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2-chloro-3,5-dimethoxyphenyl)-2-((2-isopropoxyethyl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2-chloro-3,5-dimethoxyphenyl)-2-(((tetrahydrofuran-2-yl)methyl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
(R)-8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2-chloro-3,5-dimethoxyphenyl)-2-((tetrahydrofuran-3-yl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
(S)-8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2-chloro-3,5-dimethoxyphenyl)-2-((1-methoxypropan-2-yl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2-chloro-3,5-dimethoxyphenyl)-2-(2-morpholinoethyl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2,6-dichloro-3,5-dimethoxyphenyl)-2-((2,2-difluoroethyl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2,6-dichloro-3,5-dimethoxyphenyl)-2-((2-methoxyethyl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2,6-dichloro-3,5-dimethoxyphenyl)-2-((2-isopropoxyethyl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2-chloro-3,5-dimethoxyphenyl)-2-(2,2,2-trifluoroethyl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2-chloro-3,5-dimethoxyphenyl)-2-(2-methoxyethyl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2-chloro-3,5-dimethoxyphenyl)-2-(2-ethoxyethyl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2-chloro-3,5-dimethoxyphenyl)-2-(1,3-dimethoxypropan-2-yl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
(S)-8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2-chloro-3,5-dimethoxyphenyl)-2-((tetrahydrofuran-3-yl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2-chloro-3,5-dimethoxyphenyl)-2-(((tetrahydro-2H-pyran-4-yl)methyl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2,6-dichloro-3,5-dimethoxyphenyl)-2-((2-ethoxyethyl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2,6-dichloro-3,5-dimethoxyphenyl)-2-(((tetrahydro-2H-pyran-4-yl)methyl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2,6-dichloro-3,5-dimethoxyphenyl)-2-((2,2,2-trifluoroethyl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
(R)-8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2,6-dichloro-3,5-dimethoxyphenyl)-2-((tetrahydrofuran-3-yl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2,6-dichloro-3,5-dimethoxyphenyl)-2-((1,3-dimethoxypropan-2-yl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
(S)-8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2,6-dichloro-3,5-dimethoxyphenyl)-2-((tetrahydrofuran-3-yl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2,6-di chloro-3,5-dimethoxyphenyl)-2-(((tetrahydrofuran-2-yl)methyl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-2-amino-6-(2,6-dichloro-3,5-dimethoxyphenyl)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2,6-di chloro-3,5-dimethoxyphenyl)-2-((2-(2-methoxyethoxy)ethyl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2,6-dichloro-3,5-dimethoxyphenyl)-2-(((1r,4r)-4-hydroxycyclohexyl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2,6-dichloro-3,5-dimethoxyphenyl)-2-(oxetan-3-ylamino)pyrido[2,3-d]pyrimidin-7(8H)-one;
(R)-8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2,6-dichloro-3,5-dimethoxyphenyl)-2-((1-methoxypropan-2-yl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2-chloro-6-fluoro-3,5-dimethoxyphenyl)-2-(methylamino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2-fluoro-3,5-dimethoxyphenyl)-2-(methylamino)pyrido[2,3-d]pyrimidin-7(8H)-one;
(S)-8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2,6-dichloro-3,5-dimethoxyphenyl)-2-((1-hydroxypropan-2-yl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2,6-difluoro-3,5-dimethoxyphenyl)-2-(methylamino)pyrido[2,3-d]pyrimidin-7(8H)-one;
(S)-8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2,6-dichloro-3,5-dimethoxyphenyl)-2-((1-ethoxypropan-2-yl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one;
(E)-8-(3-(4-(but-2-enoyl)piperazin-1-yl)propyl)-6-(2,6-dichloro-3,5-dimethoxyphenyl)-2-(methylamino)pyrido[2,3-d]pyrimidin-7(8H)-one;
(E)-2-amino-8-(3-(4-(but-2-enoyl)piperazin-1-yl)propyl)-6-(2,6-dichloro-3,5-dimethoxyphenyl)pyrido[2,3-d]pyrimidin-7(8H)-one; and
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2,6-dichloro-3-hydroxy-5-methoxyphenyl)-2-(methylamino)pyrido[2,3-d]pyrimidin-7(8H)-one;
an individual E or Z isomer of any of the above compounds;
and/or a pharmaceutically acceptable salt of any of the above compounds; and a pharmaceutically acceptable excipient, optionally administered in combination with at least one other anticancer agent.

### Claim 14

A method of treating a cancer selected from breast cancer, gastric cancer, head and neck cancer, and 8,11-myeloproliferative syndrome, in a patient, which method comprises administering to the patient in recognized need thereof, a pharmaceutical composition comprising a compound selected from:
8-(3-(4-acryloylpiperazin-1-yl)propyl)-2-amino-6-(2,6-dichloro-3,5-dimethoxyphenyl)pyrido[2,3-d]pyrimidin-7(8H)-one;
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2,6-di chloro-3-hydroxy-5-methoxyphenyl)-2-(methylamino)pyrido[2,3-d]pyrimidin-7(8H)-one; and
8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2,6-di chloro-3,5-dimethoxyphenyl)-2-(methylamino)pyrido[2,3-d]pyrimidin-7(8H)-one;
and/or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable excipient optionally administered in combination with at least one other anticancer agent.

### Claim 15

A method of treating a cancer selected from breast cancer, gastric cancer, head and neck cancer, and 8,11-myeloproliferative syndrome, in a patient, which method comprises administering to the patient in recognized need thereof, a pharmaceutical composition comprising 8-(3-(4-acryloylpiperazin-1-yl)propyl)-6-(2,6-dichloro-3,5-dimethoxyphenyl)-2-(methylamino)pyrido[2,3-d]pyrimidin-7(8H)-one having the structure
and/or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable excipient, optionally administered in combination with at least one other anticancer agent.