Ethyl 2-(difluoromethyl)-5-nitro-3-(trifluoromethoxy)pyridine-6-carboxylate
2-(Bromomethyl)-6-(difluoromethyl)-5-(trifluoromethoxy)-3-(trifluoromethyl)pyridine
2-Methyl-3-nitro-6-(trifluoromethoxy)pyridine-4-sulfonamide
2-(Bromomethyl)-6-(difluoromethyl)-3-(trifluoromethoxy)-5-(trifluoromethyl)pyridine