1-(cyclohexyloxymethyl)-5-ethyl-6-phenylsulfanylpyrimidine-2,4-dione

5-ethyl-1-[(4-methylphenyl)methoxymethyl]-6-phenylsulfanyl-2-sulfanylidenepyrimidin-4-one

6-(3,5-dimethylphenyl)sulfanyl-5-ethyl-1-(phenylmethoxymethyl)-2-sulfanylidenepyrimidin-4-one

5-ethyl-1-(2-phenylethoxymethyl)-6-phenylsulfanylpyrimidine-2,4-dione

6-(3,5-dimethylphenyl)sulfanyl-1-(ethoxymethyl)-5-ethyl-2-sulfanylidenepyrimidin-4-one