4-Bromo-5-(difluoromethyl)-3-methylpyridine-2-carboxaldehyde
5-Bromo-2-(bromomethyl)-3-(difluoromethyl)-4-nitropyridine
4-Bromo-3-(difluoromethyl)-2-methylpyridine-6-carboxaldehyde
4-Bromo-3-(bromomethyl)-6-(difluoromethyl)-2-nitropyridine
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