Methyl 3-chloro-5-fluoro-6-(trifluoromethoxy)pyridine-2-carboxylate
3-Cyano-6-(difluoromethyl)-4-methoxy-2-(trifluoromethoxy)pyridine
5-Cyano-2-(difluoromethyl)-3-methoxy-4-(trifluoromethoxy)pyridine
4-Cyano-5-(difluoromethyl)-3-methoxy-2-(trifluoromethoxy)pyridine