4-Cyano-5-(fluoromethyl)-2-(trifluoromethoxy)pyridine-3-carboxylic acid
2-Fluoro-5-methoxy-4-(trifluoromethoxy)-3-(trifluoromethyl)pyridine
3-Cyano-6-(difluoromethyl)-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
4-Cyano-3-(fluoromethyl)-5-(trifluoromethoxy)pyridine-2-carboxylic acid