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