Methyl 2-cyano-5-methyl-3-(trifluoromethoxy)pyridine-6-acetate
3-Chloro-4-(difluoromethyl)-5-nitro-2-(trifluoromethoxy)pyridine
Methyl 2-cyano-4-methyl-6-(trifluoromethoxy)pyridine-3-acetate
6-Chloro-2-(difluoromethyl)-3-nitro-4-(trifluoromethoxy)pyridine