5-Amino-3-(difluoromethyl)-2-nitropyridine-4-carboxamide
3-Amino-5-(difluoromethyl)-2-methoxypyridine-6-carboxamide
3-Amino-5-(difluoromethyl)-4-nitropyridine-2-carboxamide
2-Amino-6-(difluoromethyl)-3-methoxypyridine-4-carboxamide
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