1-methyl-2-sulfanylidenepyrido[2,3-d]pyrimidin-4-one

1-ethyl-2-sulfanylidenepyrido[2,3-d]pyrimidin-4-one

1-cyclohexyl-2-sulfanylidenepyrido[2,3-d]pyrimidin-4-one

1-phenyl-2-sulfanylidenepyrido[2,3-d]pyrimidin-4-one

1-(4-甲氧基苯基)-2-硫代-1,2,3,4-四氢吡啶并[2,3-d]嘧啶-4-酮