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