1,3-dimethyl-5-(4-methyl-benzylidene)-pyrimidine-2,4,6-trione

5-(4-chlorobenzylidene)-1,3-dimethyl-2,4,6(1H,3H,5H)pyrimidinetrione

5-benzylidene-1,3-dimethyl-1,3-diazinane-2,4,6-trione

5-(4-bromobenzylidene)-1,3-dimethyl-2,4,6(1H,3H,5H)pyrimidinetrione

4-甲基苯磺酸 4-硝基苄酯