6-Methoxy-2-nitro-3-(trifluoromethoxy)pyridine-4-sulfonamide
2-(Fluoromethyl)-6-methoxy-4-nitro-3-(trifluoromethoxy)pyridine
2-(Fluoromethyl)-5-methoxy-6-nitro-3-(trifluoromethoxy)pyridine
2-Methoxy-6-nitro-4-(trifluoromethoxy)pyridine-3-sulfonamide
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