4-Amino-2-(difluoromethyl)-5-fluoro-3-nitropyridine
3-Amino-2-(chloromethyl)-6-(difluoromethyl)-5-methoxypyridine
2-Amino-3-(difluoromethyl)-4-fluoro-6-iodopyridine
5-Amino-3-(difluoromethyl)-2-fluoro-4-nitropyridine
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