4-Amino-3-chloro-5-(difluoromethyl)-2-methylpyridine
4-Amino-6-bromo-3-(difluoromethyl)-2-iodopyridine
3-Amino-2-chloro-6-(difluoromethyl)-5-methylpyridine
5-Amino-4-bromo-3-(difluoromethyl)-2-iodopyridine
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