Methyl 4-bromo-3-(difluoromethyl)-2-methylpyridine-6-carboxylate
3-Bromo-5-(difluoromethyl)-6-nitro-2-(trifluoromethyl)pyridine
3-Bromo-5-(difluoromethyl)-4-nitro-2-(trifluoromethyl)pyridine
3-Bromo-5-(difluoromethyl)-2-nitro-4-(trifluoromethyl)pyridine