1-methyl-2-sulfanylidenepyrimidin-4-one

3-hydroxyiminopropanoic acid

N,1-dimethyl-6-oxopyridine-3-carboxamide

3-methoxy-N-methyl-N-(methylcarbamoyl)prop-2-enamide

5-(3,5-dioxo-4-phenyl-1,2,4-triazolidin-1-yl)-1,3-dimethylpyrimidine-2,4-dione