6-Bromo-2,4-dihydroxy-3-(trifluoromethoxy)pyridine
3-Bromo-2,4-dihydroxy-6-(trifluoromethoxy)pyridine
5-(Difluoromethyl)-2-iodo-3-(trifluoromethoxy)pyridine
4-Methoxy-5-(trifluoromethoxy)pyridine-2-carboxylic acid
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