1,2,3,4-tetrahydro-3,3-dimethylpyrido[3,4-e]-1,2,4-triazine dihydrochloride

4-羟基吡啶

4-肼基-3-硝基吡啶

4-羟基-3-硝基吡啶

4-氯-3-硝基吡啶