3-Hydroxy-5-methoxy-6-nitro-2-(trifluoromethoxy)pyridine
3-Hydroxy-4-methoxy-2-nitro-6-(trifluoromethoxy)pyridine
2-(Fluoromethyl)-4-hydroxy-6-methoxy-3-(trifluoromethoxy)pyridine
3-Hydroxy-2-methoxy-4-nitro-6-(trifluoromethoxy)pyridine
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