2-Bromo-6-(difluoromethyl)-3-methyl-5-(trifluoromethyl)pyridine
2-Bromo-5-(difluoromethyl)-6-methyl-3-(trifluoromethyl)pyridine
2-Bromo-5-(bromomethyl)-4-(difluoromethyl)-3-nitropyridine
6-Bromo-3-(difluoromethyl)-4-methyl-2-(trifluoromethyl)pyridine