Methyl 3-bromo-4-(difluoromethyl)-6-(trifluoromethyl)pyridine-2-carboxylate
6-Bromo-4-(bromomethyl)-2-(difluoromethyl)-3-nitropyridine
6-Bromo-4-(bromomethyl)-3-(difluoromethyl)-2-nitropyridine
2-Bromo-4-(bromomethyl)-3-(difluoromethyl)-6-nitropyridine