3-(4,4-二甲基-4,5-二氢-1,3-噁唑)-4-甲基吡啶

3-O-methyl 1-O-phenyl 4-methyl-4H-pyridine-1,3-dicarboxylate

4-甲基烟酰氯

3-氰基-4-甲基吡啶