IP Library Granted Patent US 12668593
Granted Patent B2
US 12668593 · App. 18/018,440 · Granted Jun 30, 2026

Pyrazole compound and preparation method therefor and use thereof

Inventors: Qiang Tian (Chengdu, CN); Yitao Zhang (Chengdu, CN); Xiaoling Jiang (Chengdu, CN); Chunchi Liu (Chengdu, CN); Bingqiang Kang (Chengdu, CN); Ruihong Liu (Chengdu, CN); Hongmei Song (Chengdu, CN); Tongtong Xue (Chengdu, CN); Jingyi Wang (Chengdu, CN)
Assignee: Sichuan Kelun-Biotech Biopharmaceutical Co., Ltd.
C07D471/04C07D401/14C07D417/14C07D487/04C07D519/00
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Quick Facts
Patent No.
US 12668593
App. No.
18/018,440
Granted
Jun 30, 2026
Kind
B2
Abstract

The present invention relates to a pyrazole compound and a preparation method therefor and a use thereof. In particular, the present invention relates to a compound shown in Formula I, a pharmaceutical composition containing same or a pharmaceutically acceptable form thereof, a pharmaceutical composition thereof, a preparation method therefor, and a use thereof. The compound can be used as a drug for treating cancer or fibrosis disease,

Claims (48)

1 . A compound having the structure of Formula I or a pharmaceutically acceptable form thereof, wherein the pharmaceutically acceptable form is selected from the group consisting of a pharmaceutically acceptable salt, ester, stereoisomer, tautomer, polymorph, solvate, isotopically labeled compound, and prodrug;

wherein,

R 1 is selected from the group consisting of

R 2 is

R 3 is selected from the group consisting of hydrogen, halogen, C 1-6 alkyl, C 1-6 haloalkyl, C 3-8 cycloalkyl, C 1-6 alkoxyl and C 1-6 alkylamino; and

R 4 is selected from the group consisting of hydrogen, C 3-8 cycloalkyl-C 1-6 alkylamino, 3- to 8-membered heterocyclylamino, C 1-6 alkylamino, C 1-6 haloalkylamino, C 3-8 cycloalkylamino, phenylamino, benzylamino, 5- to 10-membered heteroarylamino and 5- to 10-membered heteroarylalkylamino; wherein the C 3-8 cycloalkyl-C 1-6 alkylamino, 3- to 8-membered heterocyclylamino, C 1-6 alkylamino, C 1-6 haloalkylamino, C 3-8 cycloalkylamino, phenylamino, benzylamino, 5- to 10-membered heteroarylamino and 5- to 10-membered heteroarylalkylamino are each optionally substituted with one or more groups independently selected from the group consisting of: C 1-6 alkyl, halogen, cyano, amido, carbamoyl, mono- or di-C 1-6 alkyl-substituted carbamoyl, sulfonyl, phenyl, halophenyl and 4- to 6-membered heterocyclyl.

2 . The compound according to claim 1 , or a pharmaceutically acceptable form thereof, wherein,

R 3 is selected from the group consisting of hydrogen, C 1-6 alkyl, C 1-6 haloalkyl, C 3-6 cycloalkyl, C 1-6 alkoxy and C 1-6 alkylamino; and

R 4 is selected from the group consisting of hydrogen, C 3-8 cycloalkyl-C 1-6 alkylamino, 3- to 8-membered heterocyclylamino, C 1-6 alkylamino, C 1-6 haloalkylamino, C 3-8 cycloalkylamino, phenylamino, benzylamino, 5- to 6-membered heteroarylamino and 5- to 6-membered heteroarylalkylamino; wherein the C 3-8 cycloalkyl-C 1-6 alkylamino, 3- to 8-membered heterocyclylamino, C 1-6 alkylamino, C 1-6 haloalkylamino, C 3-8 cycloalkylamino, phenylamino, benzylamino, 5- to 6-membered heteroarylamino, and 5- to 6-membered heteroarylalkylamino are each optionally substituted with one or more groups independently selected from the group consisting of: C 1-6 alkyl, halogen, cyano, amido, carbamoyl, mono- or di-C 1-6 alkyl-substituted carbamoyl, sulfonyl, phenyl, halophenyl, C 3-6 cycloalkyl and 4- to 6-membered heterocyclyl.

3 . The compound according to claim 1 , or a pharmaceutically acceptable form thereof, wherein the compound has the structure of Formula I-1,

wherein:

R 1 , R 2 and R 3 are as defined in claim 1 .

4 . The compound according to claim 1 , or a pharmaceutically acceptable form thereof, wherein the compound has the structure of Formula I-4,

wherein R 1 , R 2 and R 3 are as defined in claim 1 ; and

R 10 is selected from the group consisting of C 1-6 alkyl, C 1-6 haloalkyl, C 3-8 cycloalkyl, C 3-8 cycloalkyl-C 1-6 alkyl, 3- to 8-membered heterocyclyl, benzyl, 5- to 6-membered heteroarylalkyl, phenyl and 5- to 6-membered heteroaryl; wherein the C 1-6 alkyl, C 1-6 haloalkyl, C 3 -cycloalkyl, C 3-8 cycloalkyl-C 1-6 alkyl, 3- to 8-membered heterocyclyl, benzyl, 5- to 6-membered heteroarylalkyl, phenyl and 5- to 6-membered heteroaryl are each optionally substituted with one or more groups independently selected from the group consisting of C 1-6 alkyl, halogen, cyano amido, carbamoyl, mono- or di-C 1-6 alkyl-substituted carbamoyl, sulfonyl, phenyl, halophenyl and 4- to 6-membered heterocyclyl.

5 . The compound according to claim 1 , or a pharmaceutically acceptable form thereof, wherein,

R 3 is selected from the group consisting of hydrogen and C 1-6 alkyl.

6 . The compound according to claim 1 , or a pharmaceutically acceptable form thereof, wherein,

R 3 is selected from the group consisting of hydrogen, methyl, ethyl, isopropyl, cyclopropyl, difluoroethyl, C 1-6 alkoxy and C 1-6 alkylamino;

R 4 is selected from the group consisting of hydrogen and —NHR 10 ;

R 10 is selected from:

7 . The compound according to claim 1 , or a pharmaceutically acceptable salt, ester, stereoisomer, tautomer, polymorph, solvate, isotopically labeled compound, or prodrug thereof, wherein the compound is selected from:

8 . A pharmaceutical composition, which comprises at least one compound according to claim 1 , or a pharmaceutically acceptable form thereof, and one or more pharmaceutically acceptable carriers.

9 . A kit product, which comprises:

a) at least one compound according to claim 1 or a pharmaceutically acceptable form thereof as a first therapeutic agent, or pharmaceutical composition as a first pharmaceutical composition.

10 . A pharmaceutical composition, which comprises at least one compound according to claim 7 , or a pharmaceutically acceptable form thereof, and one or more pharmaceutically acceptable carriers.

11 . A kit product, which comprises:

a) at least one compound according to claim 7 or a pharmaceutically acceptable form thereof as a first therapeutic agent, or a pharmaceutical composition comprising the same as a first pharmaceutical composition.

12 . The compound of claim 3 , wherein R 3 is hydrogen or C 1-6 alkyl.

13 . The compound of claim 4 , where R 10 is selected from the group consisting of C 1-6 alkyl, C 3-6 cycloalkyl, C 3-6 cycloalkyl-C 1-4 alkyl, 3- to 6-membered heterocyclyl, benzyl, 5- to 6-membered heteroarylalkyl, phenyl and 5- to 6-membered heteroaryl; wherein the C 1-6 alkyl, C 3-6 cycloalkyl, C 3-6 cycloalkyl-C 1-4 alkyl, 3- to 6-membered heterocyclyl, benzyl, 5- to 6-membered heteroarylalkyl, phenyl and 5- to 6-membered heteroaryl are each optionally substituted with one or more groups independently selected from the group consisting of C 1-6 alkyl, halogen, cyano, amido, carbamoyl, mono- or di-C 1-4 alkyl-substituted carbamoyl and sulfonyl.

14 . The compound of claim 4 , wherein R 10 is selected from the group consisting of C 1-6 alkyl, C 3-6 cycloalkyl, benzyl, pyridyl and pyrazolyl; wherein the C 1-6 alkyl, C 3-6 cycloalkyl, benzyl, pyridyl and pyrazolyl are each optionally substituted with one or more groups independently selected from the group consisting of methyl, fluoro, chloro, bromo, and cyano.

15 . The compound of claim 5 , wherein R 1 is

16 . The compound of claim 5 , wherein R 3 is selected from the group consisting of hydrogen, methyl, ethyl, propyl and isopropyl.

17 . The compound of claim 5 , wherein R 3 is selected from the group consisting of hydrogen and isopropyl.

18 . The compound of claim 5 , wherein R 3 is hydrogen.

19 . The compound of claim 5 , wherein R 3 is isopropyl.

20 . The compound according to claim 1 , or a pharmaceutically acceptable form thereof, wherein,

R 4 is selected from the group consisting of hydrogen, C 1-6 alkylamino, C 3-8 cycloalkylamino, benzylamino and 5- to 10-membered heteroarylalkylamino, wherein the C 1-6 alkylamino, C 3-8 cycloalkylamino, benzylamino and 5- to 10-membered heteroarylalkylamino are each optionally substituted with one or more groups independently selected from the group consisting of the followings: C 1-6 alkyl, halogen and cyano.

21 . The compound of claim 20 , wherein R 4 is selected from the group consisting of hydrogen, C 1-6 alkylamino, C 3-6 cycloalkylamino, benzylamino and 5- to 6-membered heteroaryl-C 1-4 alkylamino, and the C 1-6 alkylamino, C 3-6 cycloalkylamino, benzylamino and 5- to 6-membered heteroaryl-C 1-4 alkylamino are each optionally substituted with one or more groups selected from the group consisting of the followings: C 1-6 alkyl, halogen and cyano.

22 . The compound of claim 20 , wherein R 4 is selected from the group consisting of hydrogen and —NHR 10 ; wherein R 10 is selected from the group consisting of C 1-6 alkyl, C 3-6 cycloalkyl, benzyl and 5- to 6-membered heteroaryl-C 1-4 alkyl, and the C 1-6 alkyl, C 3-6 cycloalkyl, benzyl and 5- to 6-membered heteroaryl-C 1-4 alkyl are each optionally substituted with one or more groups independently selected from the group consisting of the followings: C 1-6 alkyl, fluoro, chloro, bromo, and cyano.

23 . The compound of claim 20 , wherein R 4 is selected from the group consisting of hydrogen and —NHR 10 ; wherein R 10 is selected from the group consisting of C 1-6 alkyl, benzyl and pyridylmethyl, and the benzyl and pyridylmethyl are each optionally substituted with one or more groups independently selected from the group consisting of the followings: C 1-6 alkyl, fluoro, chloro, bromo, and cyano.

24 . The compound of claim 23 , wherein R 10 is selected from the group consisting of C 1-6 alkyl, benzyl and pyridylmethyl, and the benzyl and pyridylmethyl are each optionally substituted with one or more groups independently selected from the group consisting of the followings: methyl and fluoro.

25 . The compound of claim 20 , wherein R 4 is selected from the group consisting of hydrogen and —NHR 10 ; R 10 is selected from:

26 . The compound of claim 20 , wherein R 4 is selected from the group consisting of hydrogen and —NHR 10 ; R 10 is selected from:

27 . The kit of claim 9 , wherein the kit further comprises b) at least one additional therapeutic agent as a second therapeutic agent, or a pharmaceutical composition comprising the additional therapeutic agent as a second pharmaceutical composition.

28 . The kit of claim 11 , wherein the kit further comprises b) at least one additional therapeutic agent as a second therapeutic agent, or a pharmaceutical composition comprising the additional therapeutic agent as a second pharmaceutical composition.

29 . The compound of claim 1 , wherein R 3 is selected from the group consisting of C 1-6 alkoxyl and C 1-6 alkylamino.

30 . The compound of claim 1 , wherein R 4 is selected from the group consisting of C 1-6 alkylamino and C 1-6 haloalkylamino.