2-Chloro-6-nitro-4-(trifluoromethoxy)pyridine-3-sulfonamide
4-Cyano-6-nitro-2-(trifluoromethoxy)pyridine-3-acetic acid
2-Chloro-5-nitro-6-(trifluoromethoxy)pyridine-3-sulfonamide
3-Cyano-4-nitro-5-(trifluoromethoxy)pyridine-2-acetic acid
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