6-Iodo-2-nitro-3-(trifluoromethoxy)pyridine-4-carbonyl chloride
2-Bromo-6-hydroxy-3-methyl-5-(trifluoromethoxy)pyridine
5-Bromo-2-hydroxy-3-nitro-6-(trifluoromethoxy)pyridine
4-Bromo-3-hydroxy-6-nitro-2-(trifluoromethoxy)pyridine
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