Poly(ADP-ribose) polymerase inhibitor, preparation method and use

1. A compound as shown in general formula I, a pharmaceutically acceptable salt thereof, an isomer thereof or a mixture form of the isomers, a solvate thereof, a polymorph thereof, a stable isotope derivative thereof or a prodrug thereof;

wherein,

R a is selected from fluorine, substituted or unsubstituted C 1-6 alkyl or substituted or unsubstituted cycloalkyl;

R b is selected from hydrogen, deuterium, substituted or unsubstituted C 1-6 alkyl or substituted or unsubstituted cycloalkyl;

R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 and R 9 are each independently selected from hydrogen, deuterium or fluorine

m is the number of R 7 and is 0, 1, 2, 3, or 4; and

n is the number of R 9 and is 0, 1, 2, or 3.

2. The compound as shown in general formula I, the pharmaceutically acceptable salt thereof, the isomer thereof or the mixture form of the isomers, the solvate thereof, the polymorph thereof, the stable isotope derivative thereof or the prodrug thereof as defined in claim 1 , wherein, R b is hydrogen or deuterium.

3. The compound as shown in general formula I, the pharmaceutically acceptable salt thereof, the isomer thereof or the mixture form of the isomers, the solvate thereof, the polymorph thereof, the stable isotope derivative thereof or the prodrug thereof as defined in claim 1 , wherein, the compound as shown in general formula I is a compound as shown in formula I-1 as follows,

wherein R a is selected from fluorine or substituted or unsubstituted C 1-6 alkyl; R 7 , R 8 , R 9 , m and n are as defined in claim 1 .

4. The compound as shown in general formula I, the pharmaceutically acceptable salt thereof, the isomer thereof or the mixture form of the isomers, the solvate thereof, the polymorph thereof, the stable isotope derivative thereof or the prodrug thereof as defined in claim 1 , wherein, the compound as shown in general formula I is a compound as shown in formula I-3 as follows:

wherein, R a is selected from fluorine or substituted or unsubstituted C 1-6 alkyl.

5. The compound as shown in general formula I, the pharmaceutically acceptable salt thereof, the isomer thereof or the mixture form of the isomers, the solvate thereof, the polymorph thereof, the stable isotope derivative thereof or the prodrug thereof as defined in claim 1 , wherein, the compound as shown in general formula I is a compound as shown in formula I-4 as follows:

wherein R a is methyl, or fluorine; and

R 7a , R 7b , R 8 , R 9a , R 9b , and R 9c are each independently hydrogen or fluorine.

6. The compound as shown in general formula I, the pharmaceutically acceptable salt thereof, the isomer thereof or the mixture form of the isomers, the solvate thereof, the polymorph thereof, the stable isotope derivative thereof or the prodrug thereof as defined in claim 5 , wherein, the R a is fluorine;

and/or, the R 7b is hydrogen;

and/or, the R 8 is hydrogen;

and/or, the R 9a is hydrogen;

and/or, the R 9c is hydrogen.

7. The compound as shown in general formula I, the pharmaceutically acceptable salt thereof, the isomer thereof or the mixture form of the isomers, the solvate thereof, the polymorph thereof, the stable isotope derivative thereof or the prodrug thereof as defined in claim 1 , wherein, the compound as shown in general formula I is selected from any of the following compounds:

8. The compound as shown in general formula I, the pharmaceutically acceptable salt thereof, the isomer thereof or the mixture form of the isomers, the solvate thereof, the polymorph thereof, the stable isotope derivative thereof or the prodrug thereof as defined in claim 1 , wherein, the compound as shown in general formula I is obtained from compound 105 by respectively collecting at RT of 20.5 minutes or 23.8 minutes under chiral resolution condition 2;

the compound as shown in general formula I is obtained from compound 106 by respectively collecting at RT of 22.5 minutes or 24.5 minutes under the chiral resolution condition 2;

or, the compound as shown in general formula I is obtained from compound 107 by respectively collecting at RT of 24.3 minutes or 26.8 minutes under the chiral resolution condition 2;

or, the compound as shown in general formula I is obtained from compound 108 by respectively collecting at RT of 21.3 minutes or 23.3 minutes under the chiral resolution condition 2;

or, the compound as shown in general formula I is obtained from compound 109 by respectively collecting at RT of 13.6 minutes or 15.8 minutes under the chiral resolution condition 1;

or, the compound as shown in general formula I is obtained from compound 110 by respectively collecting at RT of 16.7 minutes or 14.2 minutes under the chiral resolution condition 1;

or, the compound as shown in general formula I is obtained from compound 111 by respectively collecting at RT of 18.7 minutes or 16.9 minutes under the chiral resolution condition 1;

or, the compound as shown in general formula I is obtained from compound 112 by respectively collecting at RT of 15.8 minutes or 14.2 minutes under the chiral resolution condition 1;

the chiral resolution condition 1 includes:

chiral column is Chrialpak AS-H 10 mm×250 mm, 5 μm;

column temperature is 40° C.;

mobile phase A is 0.1% DEA in hexane, and the percentage is the volume percentage;

mobile phase B is ethanol;

gradient is mobile phase A/mobile phase B=50/50, and the ratio is volume ratio;

flow rate is 6.0 mL/min;

detection wavelength is UV 210 nm;

the chiral resolution condition 2 includes:

chiral column is CHIRALCEL OD-H 10 mm×250 mm, 5 μm;

column temperature is 40° C.;

mobile phase A is 0.1% DEA in hexane, and the percentage is the volume percentage;

mobile phase B is ethanol;

gradient is mobile phase A/mobile phase B=60/40, and the ratio is volume ratio;

flow rate is 3.0 mL/min; and

detection wavelength is UV 210 nm.

9. A process for preparing the compound as shown in general formula I, comprising the following steps:

a1) coupling the compound of the formula I-A with the compound of the formula I-B under basic condition in presence of a metal catalyst to give the compound of general formula I-C;

b1) removing the protecting group of the compound of general formula I-C under acidic condition to give the compound as shown in general formula I;

wherein X is halogen, R 0 is an amino protecting group, and R a , R b , R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , m and n are as defined in claim 1 .

10. A pharmaceutical composition comprising a therapeutically effective amount of the compound as shown in general formula I, the pharmaceutically acceptable salt thereof, the isomer thereof or the mixture form of the isomers, the solvate thereof, the polymorph thereof, the stable isotope derivative thereof or the prodrug thereof as defined in claim 1 , and a pharmaceutically acceptable carrier, diluent or excipient.

11. A method for, relieving and/or treating diseases which are alleviated by PARP inhibitors, comprising administering a therapeutically effective amount of the compound as shown in general formula I, the pharmaceutically acceptable salt thereof, the isomer thereof or the mixture form of the isomers, the solvate thereof, the polymorph thereof, the stable isotope derivative thereof or the prodrug thereof as defined in claim 1 .

12. A method for relieving and/or treating cancers, inflammatory diseases, vascular diseases, stroke, renal failure, diabetes, Parkinson's disease, septic shock, neurotoxicity, ischemic shock or injury, transplant rejection, reperfusion injury, retinal injury, UV-induced skin damage, viral infection or multiple sclerosis, comprising administering a therapeutically effective amount of the compound as shown in general formula I, the pharmaceutically acceptable salt thereof, the isomer thereof or the mixture form of the isomers, the solvate thereof, the polymorph thereof, the stable isotope derivative thereof or the prodrug thereof as defined in claim 1 .

13. A method for treating cancers or strengthening radiotherapy and/or chemotherapy on cancers treatment, comprising administering a therapeutically effective amount of the compound as shown in general formula I, the pharmaceutically acceptable salt thereof, the isomer thereof or the mixture form of the isomers, the solvate thereof, the polymorph thereof, the stable isotope derivative thereof or the prodrug thereof as defined in claim 1 .

14. The method as defined in claim 13 , wherein the cancers are selected from a solid tumor, acute or chronic leukemia, lymphoma, central nervous system cancer, brain cancer, hematogenous cancer, peritoneal cancer, gastric cancer, lung cancer, cancer lacking homologous recombination-dependent DNA double-strand break repair activity, and cancer with defective or mutant phenotype on BRCA-1 or BRCA2.

15. The method as defined in claim 14 , wherein, the compound as shown in general formula I, the pharmaceutically acceptable salt thereof, the isomer thereof or the mixture form of the isomers, the solvate thereof, the polymorph thereof, the stable isotope derivative thereof or the prodrug thereof is used in combination with one or more than one other anticancer agents; the anticancer agents are selected from alkylating agents, platinum drugs, topoisomerase inhibitors, metabolic antagonists, alkaloids, antibody drugs, hormone anticancer agents, proteasome inhibitors, HDAC inhibitors, CDK inhibitors, VEGFR or EGFR inhibitors, m-TOR inhibitors, PI3K inhibitors, B-Raf inhibitors, PARP inhibitors, c-Met kinase inhibitors, ALK inhibitors, AKT inhibitors, ABL inhibitors, FLT3 inhibitors, PD-1 monoclonal antibodies or PD-L1 monoclonal antibodies.

16. A method for relieving and/or treating diseases which are alleviated by PARP inhibitors, comprising administering a therapeutically effective amount of the pharmaceutical composition as defined in claim 10 .

17. A method for relieving and/or treating cancers, inflammatory diseases, vascular diseases, stroke, renal failure, diabetes, Parkinson's disease, septic shock, neurotoxicity, ischemic shock or injury, transplant rejection, reperfusion injury, retinal injury, UV-induced skin damage, viral infection or multiple sclerosis, comprising administering a therapeutically effective amount of the pharmaceutical composition as defined in claim 10 .

18. A method for treating cancers or strengthening radiotherapy and/or chemotherapy on cancers treatment, comprising administering a therapeutically effective amount of the pharmaceutical composition as defined in claim 10 .

19. The method as defined in claim 18 , wherein the cancers are selected from a solid tumor, acute or chronic leukemia, lymphoma, central nervous system cancer, brain cancer, hematogenous cancer, peritoneal cancer, gastric cancer, lung cancer, cancer lacking homologous recombination-dependent DNA double-strand break repair activity, and cancer with defective or mutant phenotype on BRCA-1 or BRCA2.

20. The method as defined in claim 18 , wherein the pharmaceutical composition is used in combination with one or more than one other anticancer agents; the anticancer agents are selected from alkylating agents, platinum drugs, topoisomerase inhibitors, metabolic antagonists, alkaloids, antibody drugs, hormone anticancer agents, proteasome inhibitors, HDAC inhibitors, CDK inhibitors, VEGFR or EGFR inhibitors, m-TOR inhibitors, PI3K inhibitors, B-Raf inhibitors, PARP inhibitors, c-Met kinase inhibitors, ALK inhibitors, AKT inhibitors, ABL inhibitors, FLT3 inhibitors, PD-1 monoclonal antibodies or PD-L1 monoclonal antibodies.