4,6-Dihydroxy-3-fluoro-2-(trifluoromethoxy)pyridine
2,5-Diiodo-3-(fluoromethyl)-6-(trifluoromethoxy)pyridine
2-Bromo-4,6-diiodo-3-(trifluoromethoxy)pyridine
2,4-Diiodo-6-(fluoromethyl)-3-(trifluoromethoxy)pyridine
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