6-amino-1-methyl-2-(methylamino)pyrimidin-4-one

dimethyl 2-(methylamino)propanedioate

3-benzyl-1-methylpyrrolidine-2,5-dione

4,5-dichloro-N-methyl-2-nitroaniline

2-甲基氨基-5-甲基-3-硝基吡啶