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