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