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