Phtalazinone derivatives and manufacturing process thereof

1. A compound represented by Formula I, racemic, enantiomer, diastereoisomer thereof, or pharmaceutically acceptable salt thereof,

In the present Formula I,

n is 1 or 2,

R is

Wherein, when the R is

m is 0, 1 or 2,

L is oxygen, methylene, carbonyl, CONHCH 2 , NR c1 CH 2 , NR c2 CO, NR c3 , CONR c4 or CH 2 NR c5 (especially, R c1 , R c2 , R c3 , R c4 and R c5 is each independently oxygen, C 1-4 alkylamine, C 1-6 alkyl, C 1-6 alkoxy, halo C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 3-8 cycloalkyl,

R X is hydrogen, cyano, hydroxyl, trifluoromethyl, C 1-6 alkyl or C 3-8 cycloalkyl,

R Y is hydrogen, amide, cyano, hydroxyl, trifluoromethyl, halo, ester, C 1-4 alkylamine, C 1-6 alkyl, C 1-6 methoxyalkyl or C 2-6 alkynyl,

Z is unsubstituted, C 1-6 alkyl, C 1-6 methoxyalkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 3-8 cycloalkyl, C 3-8 cycloalkenyl, C 6-10 aromatic cycle or 3-8 membered heterocycle having 1-3 nitrogens,

wherein, when the R is

p and q is each independently from 1 to 3,

W is CR d1 R d2 or NR d3 (especially, R d1 , R d2 and R d3 is each independently hydrogen, fluoro or C 1-6 alkyl),

wherein, when the R is

R 1 , R 2 and R 3 is each independently hydrogen or C 1-6 alkyl.

2. The compound according to claim 1 ,

wherein, L is methylene, carbonyl, CONHCH 2 , NR c1 CH 2 , NR c2 CO, NR c3 , CONR c4 or CH 2 NR c5 (especially, R c1 , R c2 , R c3 , R c4 and R c5 is each independently hydrogen, C 1-6 alkyl, C 2-6 alkynyl or C 3-8 cycloalkyl),

R X is hydrogen, cyano, hydroxyl, trifluoromethyl, methyl, ethyl or cyclopropyl,

R Y is hydrogen, dimethylamide, cyano, hydroxyl, trifluoromethyl, halo, ethylester, dimethylamine, methyl, methoxymethyl or propargyl,

Z is unsubstituted, C 1-6 alkyl, C 1-6 methoxyalkyl, C 2-6 alkynyl, C 3-8 cycloalkyl, C 6-10 aromatic cycle or 3-8 membered heterocycle having 1-3 nitrogens,

p and q is each independently 1 or 2,

W is CR d1 R d2 or NR d3 (especially R d1 , R d2 and R d3 is each independently hydrogen, fluoro or methyl),

R 1 , R 2 and R 3 is each independently hydrogen, methyl or ethyl.

3. The compound according to claim 1 ,

wherein, L is NR c1 CH 2 , CONR c4 or CH 2 NR c5 (especially, R c1 , R c4 and R c5 is each independently hydrogen, methyl, ethyl, propyl, propargyl or cyclopropyl),

Z is

4. The compound according to claim 1 ,

wherein, L is methylene or carbonyl,

Z is

5. The compound according to claim 1 ,

wherein, L is CONHCH 2 or NR c2 CO (especially, R c2 is hydrogen, methyl, ethyl or propyl),

Z is

6. The compound according to claim 1 ,

wherein, the present R is

7. The compound according to claim 1 ,

wherein, the compound represented by Formula I is selected from the group Consisting of the following compounds:

(R)-4-(3-(3-aminopyrrolidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

(S)-4-(3-(3-aminopyrrolidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(3-(3-aminoazetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

(R)-4-(4-fluoro-3-(3-hydroxypyrrolidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

(S)-4-(4-fluoro-3-(3-hydroxypyrrolidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-hydroxyazetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-(hydroxymethyl)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

(R)—N-(1-(2-fluoro-5-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoyl)pyrrolidin-3-yl)cyclopropanecarboxamide;

N-(1-(2-fluoro-5-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoyl)azetidin-3-yl)cyclopropanecarboxamide;

(S)—N-(1-(2-fluoro-5-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoyl)pyrrolidin-3-yl)cyclopropanecarboxamide;

(R)—N-(1-(2-fluoro-5-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoyl)pyrrolidin-3-yl)-N-methylcyclopropanecarboxamide;

N-(1-(2-fluoro-5-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoyl)azetidin-3-yl)-N-methylcyclopropanecarboxamide;

(S)—N-(1-(2-fluoro-5-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoyl)pyrrolidin-3-yl)-N-methylcyclopropanecarboxamide;

3-(1-(2-fluoro-5-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoyl)azetidin-3-yl)-5,5-dimethylimidazolidine-2,4-dione;

(R)-3-(1-(2-fluoro-5-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoyl)pyrrolidin-3-yl)imidazolidine-2,4-dione;

(R)-1-ethyl-3-(1-(2-fluoro-5-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoyl)pyrrolidin-3-yl)imidazolidine-2,4-dione;

4-(4-fluoro-3-(3-(4-fluoropiperidine-1-carbonyl)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(3-(3-(3,3-difluoroazetidine-1-carbonyl)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(3-(3-(3,3-difluoropyrrolidine-1-carbonyl)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(3-(3-(3,3-difluoropyrrolidine-1-carbonyl)pyrrolidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

(R)—N-(cyclopropylmethyl)-1-(2-fluoro-5-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoyl)pyrrolidine-3-carboxamide;

4-(4-fluoro-3-(3-(pyrrolidine-1-carbonyl)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

(R)-4-(3-(3-(3-(dimethylamino)pyrrolidine-1-carbonyl)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

(S)-4-(3-(3-(3-(dimethylamino)pyrrolidine-1-carbonyl)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(3-(3-(cyclobutylamino)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(3-(3-(cyclopropylamino)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(3-(3-(cyclopentylamino)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(3-(3-(cyclohexylamino)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

(R)-4-(3-(3-(cyclopropylamino)pyrrolidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

(R)-4-(3-(3-(cyclobutylamino)pyrrolidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

(R)-4-(3-(3-(cyclopentylamino)pyrrolidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-(isopropylamino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(3-(3-((cyclopropylmethyl)amino)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(3-(3-(bis(cyclopropylmethyl)amino)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-(isobutylamino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-((1-hydroxypropan-2-yl)amino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-(neopentylamino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(3-(3-((2,2-dimethylcyclopentyl)amino)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

ethyl 2-((1-(2-fluoro-5-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoyl)azetidin-3-yl)amino)cyclopent-1-enecarboxylate;

4-(4-fluoro-3-(3-(pentan-3-ylamino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-((3-methylbutan-2-yl)amino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(3-(3-((1-cyclopropylethyl)amino)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(3-(3-(bicyclo[2.2.1]heptan-2-ylamino)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(3-(3-(sec-butylamino)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(3-(3-((dicyclopropylmethyl)amino)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-((4-methylpentan-2-yl)amino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-((3-hydroxybutan-2-yl)amino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-(pentan-2-ylamino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-((1-(1-methyl cyclopropyl)ethyl)amino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-((3,3,3-trifluoro-2-methylpropyl)amino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(3-(3-(allylamino)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-(isopentylamino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(3-(3-(butylamino)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-((3-methylbut-2-en-1-yl)amino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(3-(3-((cyclopentylmethyl)amino)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-((4,4,4-trifluorobutyl)amino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-(pentylamino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(3-(3-((2-cyclopropylethyl)amino)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-(propylamino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-(methyl(pyridin-4-ylmethyl)amino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

(R)-4-(4-fluoro-3-(3-(methyl(pyridin-4-ylmethyl)amino)pyrrolidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

(S)-4-(4-fluoro-3-(3-(methyl(pyridin-4-ylmethyl)amino)pyrrolidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

(S)-4-(4-fluoro-3-(3-(methyl(pyridin-2-ylmethyl)amino)pyrrolidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

(R)-4-(4-fluoro-3-(3-(methyl(pyridin-2-ylmethyl)amino)pyrrolidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-(methyl(pyridin-2-ylmethyl)amino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-(methyl(pyridin-3-ylmethyl)amino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

(S)-4-(4-fluoro-3-(3-(methyl(pyridin-3-ylmethyl)amino)pyrrolidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

(R)-4-(4-fluoro-3-(3-(methyl(pyridin-3-ylmethyl)amino)pyrrolidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(3-(3-(cyclopropyl(methyl)amino)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(3-(3-(cyclopropyl(ethyl)amino)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(3-(3-(cyclobutyl(methyl)amino)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(3-(3-(cyclopentyl(prop-2-yn-1-yl)amino)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(3-(3-(3,3-difluoropyrrolidin-1-yl)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-(4-fluoropiperidin-1-yl)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(3-([1,3′-biazetidine]-1′-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-(pyrrolidin-1-yl)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-(piperidin-1-yl)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-(4-methylpiperazin-1-yl)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-(phenylamino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-((1-(trifluoromethyl)cyclopropyl)amino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-(prop-2-yn-1-ylamino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

(S)-4-(4-fluoro-3-(3-((1-methoxypropan-2-yl)amino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

(R)-4-(4-fluoro-3-(3-((1-methoxypropan-2-yl)amino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-((1-(hydroxymethyl)cyclopropyl)amino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-((1-methylcyclopropyl)amino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

(R)-4-(3-(3-((3,3-dimethylbutan-2-yl)amino)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

(S)-4-(3-(3-((3,3-dimethylbutan-2-yl)amino)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

(R)-4-(4-fluoro-3-(3-((3-methylbutan-2-yl)amino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

(S)-4-(4-fluoro-3-(3-((3-methylbutan-2-yl)amino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-((1-(methoxymethyl)cyclopropyl)amino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(3-(3-(but-3-yn-1-ylamino)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-((2-methylallyl)amino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-((3-hydroxy-2,2-dimethylpropyl)amino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

1-(((1-(2-fluoro-5-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoyl)azetidin-3-yl)amino)methyl)cyclopropanecarbonitrile;

4-(4-fluoro-3-(3-((2,2,2-trifluoroethyl)amino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

(R)-4-(4-fluoro-3-(3-(pyrrolidin-3-ylamino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

(S)-4-(4-fluoro-3-(3-(pyrrolidin-3-ylamino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

1-((1-(2-fluoro-5-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoyl)azetidin-3-yl)amino)cyclopentanecarbonitrile;

1-((1-(2-fluoro-5-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoyl)azetidin-3-yl)amino)cyclobutanecarbonitrile;

2-((1-(2-fluoro-5-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoyl)azetidin-3-yl)amino)propanenitrile;

2-((1-(2-fluoro-5-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoyl)azetidin-3-yl)amino)butanenitrile;

2-((1-(2-fluoro-5-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoyl)azetidin-3-yl)amino)-3-methylbutanenitrile;

2-cyclopropyl-2-((1-(2-fluoro-5-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoyl)azetidin-3-yl)amino)acetonitrile;

4-(4-fluoro-3-(3-((1-(trifluoromethyl)cyclobutyl)amino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

(S)-4-(4-fluoro-3-(3-(methyl(pyrimidin-2-yl)amino)pyrrolidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

(S)-4-(4-fluoro-3-(3-(methyl(pyrimidin-2-yl)amino)pyrrolidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-(methyl(pyrimidin-2-yl)amino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-(methyl(pyrimidin-2-yl)amino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-(pyrimidin-2-ylamino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

(S)-4-(4-fluoro-3-(3-(pyrimidin-2-ylamino)pyrrolidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

(S)-4-(3-(3-((6-chloropyridazin-3-yl)(methyl)amino)pyrrolidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

(S)-4-(3-(3-((6-chloropyridazin-3-yl)amino)pyrrolidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

(S)-4-(4-fluoro-3-(3-(methyl(pyridazin-3-yl)amino)pyrrolidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(3-(3-((6-chloropyridazin-3-yl)amino)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(3-(3-((6-chloropyridazin-3-yl)(methyl)amino)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(3-(3-(cyclobutyl(pyrimidin-2-yl)amino)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-(pyridazin-3-ylamino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

(R)-4-(3-(3-((6-chloropyridazin-3-yl)amino)pyrrolidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

(R)-4-(3-(3-((6-chloropyridazin-3-yl)(methyl)amino)pyrrolidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

(R)-4-(4-fluoro-3-(3-(pyrimidin-2-ylamino)pyrrolidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

(R)-4-(3-(3-(methyl(pyrimidin-2-yl)amino)pyrrolidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

(R)-4-(4-fluoro-3-(3-(pyridazin-3-ylamino)pyrrolidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

(R)-4-(4-fluoro-3-(3-(methyl(pyridazin-3-yl)amino)pyrrolidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

(R)-4-(4-fluoro-3-(3-(thiazol-2-ylamino)pyrrolidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

(R)-4-(3-(3-((5-ethynylpyrimidin-2-yl)amino)pyrrolidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

(R)-2-((1-(2-fluoro-5-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoyl)pyrrolidin-3-yl)amino)pyrimidine-5-carbonitrile;

(R)-2-((1-(2-fluoro-5-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoyl)pyrrolidin-3-yl)amino)nicotinonitrile;

(R)-4-(4-fluoro-3-(3-(pyridin-2-ylamino)pyrrolidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

(R)-2-((1-(2-fluoro-5-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoyl)pyrrolidin-3-yl)amino)-N,N-dimethylnicotinamide;

(R)-4-(3-(3-((5-bromopyrimidin-2-yl)amino)pyrrolidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

(R)-4-(4-fluoro-3-(3-((5-(trifluoromethyl)pyridin-2-yl)amino)pyrrolidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

(R)-4-(4-fluoro-3-(3-((4-(trifluoromethyl)pyridin-2-yl)amino)pyrrolidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(3-(3-(benzylamino)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-((3,3,3-trifluoropropyl)amino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

(R)-4-(3-(3-(azetidin-1-yl)pyrrolidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

(R)-4-(3-([1,3′-bipyrrolidine]-1′-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

(R)-4-(4-fluoro-3-(3-(piperidin-1-yl)pyrrolidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

(R)-4-(4-fluoro-3-(3-(p-tolylamino)pyrrolidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

(R)-4-(4-fluoro-3-(3-(phenylamino)pyrrolidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-(pyrrolidin-1-ylmethyl)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-(piperidin-1-ylmethyl)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(3-(3-(azetidin-1-ylmethyl)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(3-(3-((cyclopropylamino)methyl)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-((isopropylamino)methyl)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(3-(3-(((cyclopropylmethyl)amino)methyl)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-((isobutylamino)methyl)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(3-(3-((tert-butylamino)methyl)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(3-(3-((cyclobutylamino)methyl)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-((prop-2-yn-1-ylamino)methyl)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

4-(4-fluoro-3-(3-((phenylamino)methyl)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one;

1-((((1-(2-fluoro-5-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoyl)azetidin-3-yl)methyl)amino)methyl)cyclopropanecarbonitrile;

1-(((1-(2-fluoro-5-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoyl)azetidin-3-yl)methyl)amino)cyclopropanecarbonitrile;

4-(3-(3-((cyclopropyl(prop-2-yn-1-yl)amino)methyl)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(3-(3-((cyclopropyl(methyl)amino)methyl)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(3-(3-((cyclopropyl(ethyl)amino)methyl)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one;

4-(3-(3-(cyclobutylamino)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one hydrochloride;

4-(3-(3-(cyclopropylamino)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one hydrochloride;

4-(3-(3-(cyclopentylamino)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one hydrochloride;

4-(4-fluoro-3-(3-(isopropylamino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one hydrochloride;

4-(3-(3-((cyclopropylmethyl)amino)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one hydrochloride;

4-(4-fluoro-3-(3-(isobutylamino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one hydrochloride;

4-(4-fluoro-3-(3-((1-hydroxypropan-2-yl)amino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one hydrochloride;

4-(3-(3-(butylamino)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one hydrochloride;

4-(3-([1,3′-biazetidine]-1′-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one hydrochloride;

(R)-4-(4-fluoro-3-(3-((1-methoxypropan-2-yl)amino)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one hydrochloride;

1-((1-(2-fluoro-5-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoyl)azetidin-3-yl)amino)cyclobutanecarbonitrile hydrochloride;

(R)-4-(3-(3-(azetidin-1-yl)pyrrolidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one hydrochloride;

4-(4-fluoro-3-(3-(pyrrolidin-1-ylmethyl)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one hydrochloride;

4-(4-fluoro-3-(3-(piperidin-1-ylmethyl)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one hydrochloride;

4-(3-(3-(azetidin-1-ylmethyl)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one hydrochloride;

4-(3-(3-((cyclopropylamino)methyl)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one hydrochloride;

4-(4-fluoro-3-(3-((isopropylamino)methyl)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one hydrochloride;

4-(3-(3-(((cyclopropylmethyl)amino)methyl)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one hydrochloride;

4-(4-fluoro-3-(3-((isobutylamino)methyl)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one hydrochloride;

4-(3-(3-((cyclobutylamino)methyl)azetidine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one hydrochloride; and

4-(4-fluoro-3-(3-((prop-2-yn-1-ylamino)methyl)azetidine-1-carbonyl)benzyl)phthalazin-1(2H)-one hydrochloride.