Methyl 4-bromo-5-(difluoromethyl)-3-methoxypyridine-2-carboxylate
4-Bromo-3-(difluoromethyl)-2-methoxypyridine-6-sulfonyl chloride
4-Bromo-6-(difluoromethyl)-2-methoxypyridine-3-sulfonyl chloride
2-Bromo-6-(difluoromethyl)-3-methylpyridine-4-acetic acid