3-Cyano-5-(difluoromethyl)-4-(trifluoromethoxy)pyridine-2-acetic acid
Methyl 2-cyano-3-nitro-4-(trifluoromethoxy)pyridine-5-carboxylate
3-Cyano-4-(difluoromethyl)-5-(trifluoromethoxy)pyridine-2-acetic acid
3-Cyano-6-nitro-4-(trifluoromethoxy)pyridine-2-carboxylic acid