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