Ethyl 2-(bromomethyl)-5-(difluoromethyl)-3-(trifluoromethoxy)pyridine-4-acetate
4-(Bromomethyl)-6-(difluoromethyl)-3-(trifluoromethoxy)pyridine-2-sulfonyl chloride
4-(Difluoromethyl)-2-(fluoromethyl)-5-iodopyridine
Ethyl 6-(bromomethyl)-4-(difluoromethyl)-3-(trifluoromethoxy)pyridine-2-acetate