Methyl 5-bromo-2-(difluoromethyl)-3-hydroxypyridine-6-acetate
5-Bromo-2-(difluoromethyl)-4-iodo-3-nitropyridine
Methyl 4-bromo-5-(difluoromethyl)-2-hydroxypyridine-3-acetate
5-Bromo-2-(difluoromethyl)-3-iodo-4-nitropyridine
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