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