3-Amino-6-nitro-2-(trifluoromethoxy)pyridine-5-sulfonamide
2-Amino-5-iodo-4-(trifluoromethoxy)pyridine-3-sulfonamide
5-Amino-2-nitro-3-(trifluoromethoxy)pyridine-6-sulfonamide
4-Amino-6-hydroxy-3-(trifluoromethoxy)pyridine-2-sulfonamide
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