Ethyl 5-bromo-3-(difluoromethyl)-4-methylpyridine-2-acetate
Ethyl 3-bromo-5-(difluoromethyl)-2-methylpyridine-6-acetate
Ethyl 5-bromo-4-(difluoromethyl)-2-methylpyridine-3-acetate
2-Bromo-4-(difluoromethyl)-6-(trifluoromethyl)pyridine-3-carboxylic acid