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