3-Cyano-5-(difluoromethyl)-4-(trifluoromethoxy)pyridine-2-carboxylic acid
5-Cyano-4-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-2-carboxaldehyde
5-Cyano-4-(difluoromethyl)-2-(trifluoromethoxy)pyridine-3-carboxylic acid
3-Cyano-4-(difluoromethyl)-5-(trifluoromethoxy)pyridine-2-carboxylic acid