(R)-5,6-Dihydro-5-[(4-hydroxyphenyl)methyl]-2-naphthol

2-({1-ethyl-6-[(3-methoxyphenyl)methyl]-3-methyl-7-oxo-1H,6H,7H-pyrazolo[4,3-d]pyrimidin-5-yl}sulfanyl)-N-(3-ethylphenyl)acetamide

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

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

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

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

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

5-Ethyl-4-hydroxy-6-methyl-2(1H)-pyridinone

2-(1-ethyl-6-(furan-2-ylmethyl)-3-methyl-5,7-dioxo-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-4(5H)-yl)-N-(3-(methylthio)phenyl)acetamide

N-benzyl-2-cyano-3-hydroxy-4-{[5-(phenylamino)-1,3,4-thiadiazol-2-yl]sulfanyl}but-2-enamide

N-benzyl-2-cyano-3-hydroxy-4-({5-phenylthieno[2,3-d]pyrimidin-4-yl}oxy)but-2-enamide