Methyl 3-bromo-5-(difluoromethyl)-4-(trifluoromethyl)pyridine-2-carboxylate
Methyl 3-bromo-5-(difluoromethyl)-2-(trifluoromethyl)pyridine-4-carboxylate
2-Bromo-5-(bromomethyl)-3-(difluoromethyl)-6-nitropyridine
Methyl 3-bromo-4-(difluoromethyl)-6-(trifluoromethyl)pyridine-2-carboxylate