4-Amino-2-fluoro-6-(trifluoromethoxy)pyridine-3-sulfonamide
3-Amino-5-hydroxy-2-methoxy-4-(trifluoromethoxy)pyridine
4-Amino-2-fluoro-3-(trifluoromethoxy)pyridine-6-sulfonamide
5-Amino-4-hydroxy-3-methoxy-2-(trifluoromethoxy)pyridine
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