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