Ethyl 2-bromo-5-(difluoromethyl)pyridine-3-carboxylate
6-(Difluoromethyl)-3-nitropyridine-2-sulfonamide
Ethyl 3-(chloromethyl)-2-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-4-acetate
Ethyl 6-(chloromethyl)-2-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-4-acetate