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