6-Fluoro-3-(trifluoromethoxy)pyridine-2-sulfonamide
4-Methoxy-3-nitro-2-(trifluoromethoxy)pyridine
2-Fluoro-3-(trifluoromethoxy)pyridine-6-sulfonamide
4-Methoxy-2-nitro-3-(trifluoromethoxy)pyridine
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