1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 1-ethyl 4,4-difluoropentanedioate

5-((3-chlorobenzyl)thio)-1-ethyl-6-(4-methoxybenzyl)-3-methyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one

1-ethyl-5-((2-fluorobenzyl)thio)-6-(4-methoxybenzyl)-3-methyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one

1-ethyl-6-(4-methoxybenzyl)-3-methyl-5-((3-methylbenzyl)thio)-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one

5-((2,5-dimethylbenzyl)thio)-1-ethyl-6-(4-methoxybenzyl)-3-methyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one

1-ethyl-5-((4-fluorobenzyl)thio)-6-(4-methoxybenzyl)-3-methyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one

1-ethyl-5-((3-fluorobenzyl)thio)-6-(4-methoxybenzyl)-3-methyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one

N-benzyl-2-((1-ethyl-6-(2-methoxybenzyl)-3-methyl-7-oxo-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)thio)acetamide

2-((1-ethyl-6-(2-methoxybenzyl)-3-methyl-7-oxo-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)thio)-N-(3-methoxyphenyl)acetamide

2-((1-ethyl-6-(2-methoxybenzyl)-3-methyl-7-oxo-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)thio)-N-(4-ethylphenyl)acetamide

2-((1-ethyl-6-(2-methoxybenzyl)-3-methyl-7-oxo-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)thio)-N-(2-methoxyphenyl)acetamide