2-Amino-5-nitro-3-(trifluoromethoxy)pyridine-4-sulfonamide
4-Bromo-6-cyano-2-(trifluoromethoxy)pyridine-3-carboxaldehyde
6-Amino-4-nitro-3-(trifluoromethoxy)pyridine-2-sulfonamide
2-Amino-4-nitro-3-(trifluoromethoxy)pyridine-5-sulfonamide
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