5-Bromo-3-(difluoromethyl)-2-(trifluoromethyl)pyridin-4-amine

N-(3,5-dimethoxyphenyl)-2-({2-ethyl-6-[(4-methylphenyl)methyl]-7-oxo-2H,6H,7H-pyrazolo[4,3-d]pyrimidin-5-yl}sulfanyl)acetamide

N-(2,5-dimethylphenyl)-2-((2-ethyl-6-(4-methylbenzyl)-7-oxo-6,7-dihydro-2H-pyrazolo[4,3-d]pyrimidin-5-yl)thio)acetamide

2-ethyl-6-(4-methylbenzyl)-5-((4-methylbenzyl)thio)-2H-pyrazolo[4,3-d]pyrimidin-7(6H)-one

2-ethyl-6-(4-methylbenzyl)-5-((3-methylbenzyl)thio)-2H-pyrazolo[4,3-d]pyrimidin-7(6H)-one

5-{[(2-chlorophenyl)methyl]sulfanyl}-2-ethyl-6-[(4-methylphenyl)methyl]-2H,6H,7H-pyrazolo[4,3-d]pyrimidin-7-one

2-ethyl-5-((3-fluorobenzyl)thio)-6-(4-methylbenzyl)-2H-pyrazolo[4,3-d]pyrimidin-7(6H)-one

2-((6-(4-chlorobenzyl)-2-ethyl-7-oxo-6,7-dihydro-2H-pyrazolo[4,3-d]pyrimidin-5-yl)thio)-N-(4-ethoxyphenyl)acetamide

2-((6-(4-chlorobenzyl)-2-ethyl-7-oxo-6,7-dihydro-2H-pyrazolo[4,3-d]pyrimidin-5-yl)thio)-N-(3-methoxyphenyl)acetamide

2-((6-(4-chlorobenzyl)-2-ethyl-7-oxo-6,7-dihydro-2H-pyrazolo[4,3-d]pyrimidin-5-yl)thio)-N-(2-methoxyphenyl)acetamide

2-({6-[(4-chlorophenyl)methyl]-2-ethyl-7-oxo-2H,6H,7H-pyrazolo[4,3-d]pyrimidin-5-yl}sulfanyl)-N-(2-ethylphenyl)acetamide