3-Cyano-2-nitro-5-(trifluoromethoxy)pyridine-4-carboxamide
3-Cyano-2-nitro-4-(trifluoromethoxy)pyridine-5-carboxamide
4-Cyano-5-methyl-3-(trifluoromethoxy)pyridine-2-carboxamide
2-Cyano-6-nitro-5-(trifluoromethoxy)pyridine-3-carboxamide
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