Ethyl 2-(bromomethyl)-3-(difluoromethyl)-4-(trifluoromethoxy)pyridine-6-acetate
2-(Bromomethyl)-5-(difluoromethyl)-3-(trifluoromethoxy)pyridine-6-sulfonyl chloride
Methyl 4-(difluoromethyl)pyridine-3-carboxylate
Methyl 3-(bromomethyl)-6-(difluoromethyl)-2-(trifluoromethoxy)pyridine-5-acetate