4-Amino-6-(difluoromethyl)-3-nitropyridine-2-carboxamide
2-Bromo-3-(difluoromethyl)-4-iodopyridine-6-carboxamide
5-Amino-3-(difluoromethyl)-4-nitropyridine-2-carboxamide
4-Bromo-3-(difluoromethyl)-6-hydroxypyridine-2-carboxamide
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