Class of amino-substituted nitrogen-containing fused ring compounds, preparation method therefor, and use thereof

1. A compound represented by formula (I), or a pharmaceutically acceptable salt thereof, or an enantiomer, diastereomer, or tautomer thereof,

wherein:

R 1 is hydrogen, halogen, C 1 -C 3 alkyl, or cyano;

R 2 is hydrogen, C 1 -C 10 alkyl, 3-8 membered cycloalkyl or heterocycloalkyl, or 5-8 membered aryl or heteroaryl;

each of R 3 , R 4 and R 5 is independently hydrogen, halogen, cyano, alkyl, sulfuryl, sulfinyl, acyl, sulfonyl, or nitro;

M 1 is CR 6 or N;

R 6 is hydrogen, halogen, or C 1 -C 3 alkyl;

Ar is 5-6 membered aryl or heteroaryl;

L is a chemical bond, C 1 -C 10 alkyl, alkenyl, alkynyl, alkoxyl, alkylthio, alkylamino, acyl, sulfonyl, 4-8 membered cycloalkyl or heterocycloalkyl, or 5-10 membered aryl or heteroaryl;

A is 4-8 membered cycloalkyl or heterocycloalkyl, or 5-10 membered aryl or heteroaryl;

one or more hydrogen atoms in each of the above groups are optionally substituted by the substituent independently selected from the group consisting of deuterium, halogen, hydroxyl, amino, cyano, sulfuryl or sulfinyl, C 1 -C 8 alkyl, C 3 -C 8 cycloalkyl, C 1 -C 8 alkoxyl, C 1 -C 8 alkylamino, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 2 -C 6 acyl or sulfonyl, 5-8 membered aryl or heteroaryl, 4-8 membered saturated cycloalkyl and heterocycloalkyl;

or, R 2 is N(CH 3 ) 2 C(═O)CH 2 — or N(R 7 )(R 8 )—(CH 2 ) z —; each of R 7 and R 8 is independently hydrogen or C 1 -C 6 alkyl, z is 1, 2, 3 or 4;

or, each of R 3 , R 4 and R 5 is independently N(R 9 )(R 10 )—(CH 2 ) p —; wherein R 9 and R 10 are both C 1 -C 6 alkyl, p is 1 or 2;

wherein, the heteroaryl comprises 1-3 heteroatoms independently selected from the group consisting of N, O, P and S; the heterocycloalkyl comprises 1-3 heteroatoms independently selected from the group consisting of N, O, P and S.

2. The compound represented by formula (I), or the pharmaceutically acceptable salt thereof, or the enantiomer, diastereomer, or tautomer thereof according to claim 1 , wherein,

in the formula,

M 1 is CH or N;

and/or, R 1 is hydrogen, halogen, or C 1 -C 3 alkyl;

and/or, R 2 is hydrogen, C 1 -C 6 alkyl, C 1 -C 6 deuterated alkyl, C 1 -C 6 haloalkyl, 5-8 membered aryl or heteroaryl, 4-6 membered cycloalkyl or heterocycloalkyl-(CH 2 )x-, O(R 6 )—(CH 2 )y-, N(R 7 )(R 8 )—(CH 2 )z-, N(CH 3 ) 2 C(═O)CH 2 —, HOC(CH 3 ) 2 CH— or CH(CH 2 OH) 2 —CH 2 —; each of R 6 , R 7 and R 8 is independently hydrogen or C 1 -C 6 alkyl; each of x is independently 0, 1, 2, 3 or 4; each of y and z is independently 1, 2, 3 or 4;

and/or, each of R 3 , R 4 and R 5 is independently hydrogen, halogen or N(R 9 )(R 10 )—(CH 2 )p-; wherein R 9 and R 10 are both C 1 -C 6 alkyl, p is 1 or 2;

and/or, Ar is phenyl;

and/or, L is a chemical bond, —(CH 2 ) d —, —(CH 2 ) e —CH═CH—, or —O—(CH 2 ) n —, wherein d is 1, 2 or 3, e is 1 or 2, n is 1, 2, 3 or 4;

and/or, A is 5-6 membered heterocycloalkyl, 5-6 membered heteroaryl-NH—, -Ph-(CH 2 ) o —NH—, or 5-6 membered heteroaryl-(CH 2 ) m -5-6 membered heterocycloalkyl-; wherein o is 0 or 1;

wherein, L is invariably connected to the side of aryl, heteroaryl or non-fatty amino in the structure of A.

3. The compound represented by formula (I), or the pharmaceutically acceptable salt thereof, or the enantiomer, diastereomer, or tautomer thereof according to claim 2 , wherein,

in the formula,

R 2 is H, methyl, —CD 3 , —CH 2 C(CH 3 ) 2 F, N(CH 3 ) 2 C(═O)CH 2 —, HOC(CH 3 ) 2 CH—, CH(CH 2 OH) 2 —CH 2 —,

CH 3 OCH 2 CH 2 —,

and/or, L is a chemical bond, —CH 2 —, —CH 2 CH 2 —, —CH 2 CH 2 CH 2 —, —CH 2 —CH═CH—, or —O—CH 2 CH 2 —;

and/or, A is

4. The compound represented by formula (I), or the pharmaceutically acceptable salt thereof, or the enantiomer, diastereomer, or tautomer thereof according to claim 1 , wherein,

the compound represented by formula (I) has a structure of:

wherein, q is 0, 1 or 2, M 1 and R 2 are as defined in claim 1 ; ring B is 5-10 membered aromatic ring or aromatic heterocyclic ring.

5. The compound represented by formula (I), or the pharmaceutically acceptable salt thereof, or the enantiomer, diastereomer, or tautomer thereof according to claim 1 , wherein,

the compound represented by formula (I) has a structure of:

wherein, q is 0, 1 or 2, R 2 is as defined in claim 1

6. The compound represented by formula (I), or the pharmaceutically acceptable salt thereof, or the enantiomer, diastereomer, or tautomer thereof according to claim 1 , wherein,

the compound represented by formula (I) is selected from the group consisting of:

7. A preparation method of the compound represented by formula (I) as defined in claim 1 , comprising the following steps:

a) conducting a condensation reaction with a compound represent by formula (A) and an α-halocarbonyl compound or an equivalent thereof in the presence of an acid or a base to prepare a compound represented by formula (B); and

b) conducting a substitution reaction or coupling reaction with the compound represented by formula (B) and an amine compound in the presence of an acid, a base or a transition metal catalyst to prepare a compound represented by formula (C); and

c) conducting a condensation reaction with the compound represented by formula (C) and an acrylic acid or acryloyl chloride compound in the presence of a base or a condensation reagent to prepare the compound represented by formula (I);

in each of the formulas, LG is halogen, sulfuryl, sulfinyl, or sulfonate ester group, and other groups are as defined in claim 1 .

8. A pharmaceutical composition comprising a therapeutically effective amount of the compound represented by formula (I), or the pharmaceutically acceptable salt thereof, or the enantiomer, diastereomer, or tautomer thereof as defined in claim 1 , and at least one pharmaceutical excipient.

9. A method of inhibiting FGFR kinase in a subject in need thereof, comprising administering a therapeutically effective amount of the compound represented by formula (I), or the pharmaceutically acceptable salt thereof, or the enantiomer, diastereomer, or tautomer thereof as defined in claim 1 to the subject.

10. The compound represented by formula (I), or the pharmaceutically acceptable salt thereof, or the enantiomer, diastereomer, or tautomer thereof according to claim 2 , wherein,

in the definition of R 2 , the 5-8 membered aryl or heteroaryl is pyridinyl;

and/or, in the definition of R 2 , the 4-6 membered cycloalkyl or heterocycloalkyl is cyclopropyl, tetrahydrofuryl, piperazinyl, piperidinyl or tetrahydropyrrolyl;

and/or, R 3 is hydrogen or fluorine, and R 4 and R 5 are hydrogen;

and/or, in the definition of Ar, one or more hydrogen atoms in the phenyl are substituted by the substituent independently selected from the group consisting of halogen, cyano, C 1 -C 8 alkyl, C 1 -C 8 alkoxyl, amino, hydroxyl, C 2 -C 6 acyl or sulfonyl;

and/or, in the definition of A, the 5-6 membered heterocycloalkyl is piperazinyl, piperidinyl or tetrahydropyrrolyl;

and/or, in the definition of A, the 5-6 membered heteroaryl is pyridinyl, oxazolyl or triazolyl;

and/or, the two substituents on A are located in meta or para-position with respect to each other.

11. The compound represented by formula (I), or the pharmaceutically acceptable salt thereof, or the enantiomer, diastereomer, or tautomer thereof according to claim 10 , wherein,

in the definition of R 2 , the pyridinyl is further substituted by one 6 membered heterocycloalkyl;

and/or, in the definition of R 2 , the cyclopropyl, tetrahydrofuryl, piperazinyl, piperidinyl or tetrahydropyrrolyl is further substituted by C 1 -C 6 alkyl or amino;

and/or, in the definition of Ar, the phenyl is substituted by two halogens and two C 1 -C 8 alkoxyls.

12. The compound represented by formula (I), or the pharmaceutically acceptable salt thereof, or the enantiomer, diastereomer, or tautomer thereof according to claim 4 , wherein ring B is benzene ring, pyridine ring, oxazole ring or triazole ring.

13. The compound represented by formula (I), or the pharmaceutically acceptable salt thereof, or the enantiomer, diastereomer, or tautomer thereof according to claim 1 , wherein the compound represented by formula (I) has a structure of:

wherein M 1 and R 2 are as defined in claim 1 .

14. The compound represented by formula (I), or the pharmaceutically acceptable salt thereof, or the enantiomer, diastereomer, or tautomer thereof according to claim 1 , wherein the compound represented by formula (I) has a structure of

wherein R 2 is as defined in claim 1 .

15. A method of treating a tumor in a subject in need thereof, comprising administering a therapeutically effective amount of the compound represented by formula (I), or the pharmaceutically acceptable salt thereof, or the enantiomer, diastereomer, or tautomer thereof as defined in claim 1 to the subject.

16. The method according to claim 15 , wherein the tumor is non-small cell lung cancer, small cell lung cancer, lung adenocarcinoma, squamous cell lung cancer, breast cancer, prostate cancer, liver cancer, skin cancer, gastric cancer, epithelial cell cancer, gastrointestinal stromal tumor, intestinal cancer, bile duct cancer, gallbladder cancer, colorectal cancer, brain cancer, leukemia, lymphoma, nasopharyngeal cancer, bladder cancer, pancreatic cancer.

17. The method according to claim 16 , wherein the tumor is liver cancer or bile duct cancer.