4-Hydroxy-3-methoxy-5-nitro-2-(trifluoromethoxy)pyridine
3-Hydroxy-2-methoxy-6-nitro-5-(trifluoromethoxy)pyridine
3-Hydroxy-2-iodo-4-(trifluoromethoxy)pyridine-6-carbonyl chloride
2-Hydroxy-6-methoxy-4-nitro-3-(trifluoromethoxy)pyridine
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