Ethyl 2-(difluoromethyl)-3-hydroxy-6-(trifluoromethoxy)pyridine-5-carboxylate
3-(Chloromethyl)-5-iodo-4-nitro-2-(trifluoromethoxy)pyridine
3-(Chloromethyl)-2-iodo-6-nitro-5-(trifluoromethoxy)pyridine
Methyl 5-(difluoromethyl)-2-hydroxy-4-(trifluoromethoxy)pyridine-3-carboxylate