Pyrimidine or pyridine compounds, preparation method therefor and pharmaceutical uses thereof

1. A pyrimidine compound of formula (I), or a pharmaceutically acceptable salt, stereoisomer or solvate thereof:

wherein,

R 1 is hydrogen, deuterium, halogen or cyano;

R 2 is a C1-C6 alkyl, CD 3 , or halogen-substituted C1-C6 alkyl;

X is NR 3 or O;

Y is NHC(═O) or NHS(═O) 2 , and the nitrogen in the NHC(═O) or NHS(═O) 2 is bonded to the benzene ring in formula (I);

R 3 is a C1-C6 alkyl, C1-C6 alkoxy, CD 3 , or C1-C6 alkoxy C1-C6 alkyl;

R 4 is a C1-C3 alkyl, unsubstituted or substituted with 1-3 substituents, wherein said substituent is a C1-C3 alkyl, CD 3 , C1-C3 alkoxy, methanesulfonyl, NR 7 R 8 or a 3- to 6-membered heterocyclic group containing 1 to 2 heteroatoms selected from N and O, unsubstituted or substituted with hydroxy or C1-C3 alkyl;

or, R 3 and R 4 , together with the nitrogen atom to which they are bonded, form a 4-6 membered heterocyclic ring containing 1 to 4 nitrogen or oxygen and having one or more substituents, and the substituent is amino, dimethylamino, C1-C3 alkoxy, or a 4- to 6-membered heterocyclic group containing 1 to 2 heteroatoms selected from N and O, unsubstituted or substituted with C1-C3 alkyl;

R 5 is

wherein R 6 is hydrogen, C1-C3 alkyl, CD 3 , C1-C3 alkylsulfonyl, C3-C6 cycloalkyl, 4-6 membered heterocyclyl, 4-6 membered heteroaryl, or halogen-substituted C1-C3 alkyl, wherein the 4-6 membered heterocyclyl or 4-6 membered heteroaryl contains 1 to 3 heteroatoms selected from N, O and S and is optionally substituted with C1-C2 alkyl; and

R 7 and R 8 are each independently C1-C3 alkyl, CD 3 , C1-C3 alkoxy or C3-C5 cycloalkyl.

2. The pyrimidine compound, or pharmaceutically acceptable salt, stereoisomer, or solvate thereof according to claim 1 , wherein R 6 is hydrogen, methyl, CD 3 , ethyl, isopropyl, methylsulfonyl, C3-C6 cycloalkyl, or fluorine-substituted C1-C3 alkyl.

3. The pyrimidine compound, or pharmaceutically acceptable salt, stereoisomer, or solvate thereof according to claim 1 , wherein

R 1 is hydrogen, deuterium, fluorine, chlorine or cyano;

R 2 is a C1-C3 alkyl, CD 3 , or C1-C3 alkyl substituted with 1 to 3 fluorines or chlorines;

X is NR 3 or O, wherein R 3 is a C1-C3 alkyl, CD 3 , or C1-C3 alkoxyC1-C3alkyl;

R 4 is

or, when X is NR 3 , R 3 and R 4 , together with the nitrogen atom to which they are bonded, form

4. The pyrimidine compound, or pharmaceutically acceptable salt, stereoisomer, or solvate thereof according to claim 3 , wherein R 5 is:

5. The pyrimidine compound, or pharmaceutically acceptable salt, stereoisomer, or solvate thereof according to claim 1 , wherein

R 1 is hydrogen, R 2 is methyl or CD 3 , X is NR 3 , R 3 is CH 3 , CD 3 , ethyl or methoxyethyl, and R 4 is dimethylaminoethyl.

6. The pyrimidine compound, or pharmaceutically acceptable salt, stereoisomer, or solvate thereof according to claim 5 , wherein and R 5 is:

7. The pyrimidine compound or pharmaceutically acceptable salt, stereoisomer, or solvate thereof according to claim 1 , wherein the compound is

8. A pharmaceutical composition, comprising one or more of the compound, pharmaceutically acceptable salt thereof, stereoisomer, and solvate thereof according to claim 1 , and one or more pharmaceutical excipients.

9. A method of treating a disorder or disease mediated by EGFR in the form of an activated or resistant mutant, comprising administering to a subject in need thereof a therapeutically effective amount of one or more of the compound, pharmaceutically acceptable salt thereof, stereoisomer, and solvate thereof according to claim 1 , wherein the disorder or disease mediated by the EGFR in the form of an activated or resistant mutant is ovarian cancer, cervical cancer, colorectal cancer, breast cancer, pancreatic cancer, glioma, glioblastoma, melanoma, prostate cancer, leukemia, lymphoma, non-Hodgkin's lymphoma, gastric cancer, lung cancer, hepatocellular carcinoma, gastrointestinal stromal tumor, thyroid cancer, cholangiocarcinoma, endometrial cancer, kidney cancer, anaplastic large cell lymphoma, acute myeloid leukemia, multiple myeloma or mesothelioma.

10. The compound of claim 1 , which is

or a pharmaceutically acceptable salt thereof.

11. A pharmaceutical composition comprising the compound or pharmaceutically acceptable salt according to claim 10 , and one or more pharmaceutical excipients.

12. A method of treating a disorder or disease mediated by EGFR in the form of an activated or resistant mutant, comprising administering to a subject in need thereof a therapeutically effective amount of the compound or pharmaceutically acceptable salt according to claim 10 , wherein the disorder or disease mediated by the EGFR in the form of an activated or resistant mutant is ovarian cancer, cervical cancer, colorectal cancer, breast cancer, pancreatic cancer, glioma, glioblastoma, melanoma, prostate cancer, leukemia, lymphoma, non-Hodgkin's lymphoma, gastric cancer, lung cancer, hepatocellular carcinoma, gastrointestinal stromal tumor, thyroid cancer, cholangiocarcinoma, endometrial cancer, kidney cancer, anaplastic large cell lymphoma, acute myeloid leukemia, multiple myeloma or mesothelioma.

13. The method of claim 12 , wherein the disorder or disease is mediated by an EGFR mutant selected from L858R activated mutants, Exon19 deletion activated mutants, T790M resistant mutants, and combinations thereof.

14. The method of claim 13 , wherein the disorder or disease is lung cancer.

15. The method of claim 13 , wherein the disorder or disease is non-small cell lung cancer.

16. A method of treating lung cancer in a subject in need thereof, comprising administering to the subject a therapeutically effective amount of the pharmaceutical composition of claim 11 .

17. The method of claim 16 , wherein the lung cancer is non-small cell lung cancer.