4-Chloro-2-nitro-3-(trifluoromethoxy)pyridine-6-sulfonamide
6-Chloro-3-nitro-2-(trifluoromethoxy)pyridine-4-sulfonamide
2-Chloro-5-nitro-3-(trifluoromethoxy)pyridine-6-sulfonamide
Ethyl 2-cyano-3-nitro-5-(trifluoromethoxy)pyridine-4-carboxylate
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