3-(Difluoromethyl)-5-hydroxy-2-nitro-4-(trifluoromethoxy)pyridine
Methyl 4-(chloromethyl)-6-fluoro-2-(trifluoromethoxy)pyridine-3-carboxylate
6-(Difluoromethyl)-2-hydroxy-4-nitro-3-(trifluoromethoxy)pyridine
4-(Chloromethyl)-3-fluoro-5-(trifluoromethoxy)pyridine-2-acetic acid