Methyl 3,4-dibromo-2-(difluoromethyl)pyridine-6-carboxylate
2-Bromo-5-chloro-3-(difluoromethyl)pyridine-4-carbonyl chloride
Methyl 3-(chloromethyl)-4-cyano-5-(trifluoromethoxy)pyridine-2-acetate
2-Nitro-6-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-3-sulfonyl chloride