2-Hydroxy-6-nitro-3-(trifluoromethoxy)pyridine-5-acetic acid
Methyl 2-hydroxy-5-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-3-carboxylate
6-Hydroxy-3-nitro-2-(trifluoromethoxy)pyridine-4-acetic acid
Methyl 3-(difluoromethyl)-5-hydroxy-2-(trifluoromethoxy)pyridine-4-carboxylate