Ethyl 2-bromo-3-(difluoromethyl)-5-(trifluoromethoxy)pyridine-4-carboxylate
3-Chloro-6-(difluoromethyl)-2-nitro-4-(trifluoromethoxy)pyridine
Methyl 3-bromo-6-(difluoromethyl)-2-(trifluoromethoxy)pyridine-4-carboxylate
Methyl 4-bromo-5-(difluoromethyl)-2-(trifluoromethoxy)pyridine-3-carboxylate