Ethyl 4-bromo-3-chloro-2-(difluoromethyl)pyridine-5-carboxylate
Ethyl 2-amino-3-(difluoromethyl)-4-(trifluoromethyl)pyridine-6-carboxylate
Methyl 3-amino-6-(difluoromethyl)-2-(trifluoromethyl)pyridine-5-carboxylate
4-Bromo-6-chloro-2-(difluoromethyl)-3-methoxypyridine