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