Ethyl 4-(aminomethyl)-2-bromo-3-(difluoromethyl)pyridine-5-carboxylate
Methyl 2-(aminomethyl)-5-bromo-6-(difluoromethyl)pyridine-3-acetate
3-Bromo-6-(difluoromethyl)-4-methoxypyridine-2-carboxylic acid
6-Bromo-2-(difluoromethyl)-4-methoxypyridine-3-carboxylic acid