Methyl 4-hydroxy-2-nitro-3-(trifluoromethoxy)pyridine-5-carboxylate
6-(Difluoromethyl)-2-hydroxy-4-(trifluoromethoxy)pyridine-3-carboxaldehyde
3-Hydroxy-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-4-carboxaldehyde
Methyl 5-hydroxy-3-nitro-4-(trifluoromethoxy)pyridine-2-carboxylate