4-(Aminomethyl)-3-bromo-5-(difluoromethyl)-2-nitropyridine
4-(Aminomethyl)-2-bromo-6-(difluoromethyl)-3-nitropyridine
4-Bromo-3-(chloromethyl)-2-(difluoromethyl)-6-methylpyridine
4-Bromo-6-(chloromethyl)-2-(difluoromethyl)-3-methylpyridine
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