2-甲氧基-3-氯-5-醛基吡啶

5-氯甲基-2-甲氧基吡啶

2-Chloro-5-(dichloromethyl)pyridine

5-溴-6-甲氧基烟醛

3-(6-methoxypyridin-3-yl)-2-methylprop-2-enoic acid