2-(Aminomethyl)-4-hydroxybenzoic acid

6-(2-chlorobenzyl)-4-cyclopropyl-1-phenyl-1H-pyrazolo[3,4-d]pyridazin-7(6H)-one

1-(3-chlorophenyl)-4-cyclopropyl-6-(2-(4-methylpiperidin-1-yl)-2-oxoethyl)-1H-pyrazolo[3,4-d]pyridazin-7(6H)-one

1-(3-chlorophenyl)-4-cyclopropyl-6-(2-(indolin-1-yl)-2-oxoethyl)-1H-pyrazolo[3,4-d]pyridazin-7(6H)-one

2-(1-(3-chlorophenyl)-4-cyclopropyl-7-oxo-1H-pyrazolo[3,4-d]pyridazin-6(7H)-yl)-N-phenylacetamide

2-(1-(3-chlorophenyl)-4-cyclopropyl-7-oxo-1H-pyrazolo[3,4-d]pyridazin-6(7H)-yl)-N-(3,5-dimethylphenyl)acetamide

2-[1-(3-chlorophenyl)-4-cyclopropyl-7-oxopyrazolo[3,4-d]pyridazin-6-yl]-N-cyclohexylacetamide

ethyl 2-(2-(1-(3-chlorophenyl)-4-cyclopropyl-7-oxo-1H-pyrazolo[3,4-d]pyridazin-6(7H)-yl)acetamido)acetate

2-(1-(3-chlorophenyl)-4-cyclopropyl-7-oxo-1H-pyrazolo[3,4-d]pyridazin-6(7H)-yl)-N-(5-methylisoxazol-3-yl)acetamide

2-(1-(3-chlorophenyl)-4-cyclopropyl-7-oxo-1H-pyrazolo[3,4-d]pyridazin-6(7H)-yl)-N-(4-methylbenzyl)acetamide

methyl 5-((1-(3-chlorophenyl)-4-cyclopropyl-7-oxo-1H-pyrazolo[3,4-d]pyridazin-6(7H)-yl)methyl)furan-2-carboxylate