Ethyl 2-fluoro-4-nitro-6-(trifluoromethoxy)pyridine-3-acetate
3-(Chloromethyl)-2-hydroxy-5-methyl-6-(trifluoromethoxy)pyridine
6-(Chloromethyl)-2-hydroxy-4-methyl-3-(trifluoromethoxy)pyridine
2-(Difluoromethyl)-3-hydroxy-6-methyl-4-(trifluoromethoxy)pyridine