Ethyl 6-(difluoromethyl)-2-(trifluoromethyl)pyridine-3-carboxylate
Ethyl 2-(difluoromethyl)-3-(trifluoromethyl)pyridine-6-carboxylate
4-Bromo-3-(chloromethyl)-2-(difluoromethyl)-5-(trifluoromethyl)pyridine
2-Chloro-5-(difluoromethyl)-3-hydroxypyridine-4-carbonyl chloride