Ethyl 3-bromo-5-(difluoromethyl)-2-(trifluoromethoxy)pyridine-4-carboxylate
3-Bromo-2-(difluoromethyl)-5-(trifluoromethoxy)pyridine-4-acetonitrile
Ethyl 3-bromo-4-(difluoromethyl)-2-(trifluoromethoxy)pyridine-5-carboxylate
Ethyl 2-bromo-6-(difluoromethyl)-3-(trifluoromethoxy)pyridine-4-carboxylate