4-Hydroxy-2-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-5-carboxaldehyde
5-Iodo-3-nitro-4-(trifluoromethoxy)pyridine-2-sulfonamide
6-Iodo-3-methyl-4-(trifluoromethoxy)pyridine-2-carboxaldehyde
2-Iodo-5-methyl-3-(trifluoromethoxy)pyridine-4-carboxaldehyde