Methyl 3-chloro-4-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-2-acetate
4-Amino-3-nitro-2-(trifluoromethoxy)pyridine-6-acetonitrile
2-Cyano-5-(difluoromethyl)-6-hydroxy-3-methylpyridine
6-Amino-4-(chloromethyl)-3-(trifluoromethoxy)pyridine-2-acetic acid