3-Amino-6-hydroxy-2-(trifluoromethoxy)pyridine-4-carboxaldehyde
3-Amino-6-(difluoromethyl)-2-nitro-4-(trifluoromethoxy)pyridine
3-Amino-2-(difluoromethyl)-5-nitro-4-(trifluoromethoxy)pyridine
Methyl 5-amino-2-hydroxy-3-(trifluoromethoxy)pyridine-6-carboxylate