Methyl 3-(difluoromethyl)-2-nitropyridine-5-carboxylate
Methyl 2-methoxy-5-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-3-carboxylate
3-(Difluoromethyl)-5-nitropyridine-4-carbonyl chloride
Ethyl 3-cyano-4-iodo-2-(trifluoromethoxy)pyridine-5-acetate