2,4,6-trimethyl-2,5-dihydro-1,2,3-triazine

5,5'-bis(2,4,6-trimethyl-2,5-dihydro-1,2,3-triazynyl)

4,5,6-trimethyl-2,5-dihydrotriazine

2,4-二甲基吡啶

2,6-二甲基吡啶