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