5-Amino-4-(difluoromethyl)-2-nitropyridine-3-carboxamide
6-Amino-3-(difluoromethyl)-4-methoxypyridine-2-carboxamide
2-Amino-3-(difluoromethyl)-5-methoxypyridine-6-carboxamide
3-Cyano-5-nitro-2-(trifluoromethoxy)pyridine-6-carboxamide
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