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