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