2-methoxy-6-[[(4-methylpyridin-2-yl)amino]methylidene]cyclohexa-2,4-dien-1-one

2-[4-(trichloromethyl)pyridin-2-yl]isoindole-1,3-dione

4-甲基-2-苯基吡啶

2-氯-4-甲基吡啶

2-甲氧基-4-甲基吡啶