4-Amino-5-iodo-3-(trifluoromethoxy)pyridine-2-sulfonamide
4-Amino-3-chloro-6-(trifluoromethoxy)pyridine-2-sulfonamide
3-Amino-5-chloro-2-(trifluoromethoxy)pyridine-6-sulfonamide
4-Amino-2-methoxy-3-methyl-6-(trifluoromethoxy)pyridine
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