2-Hydroxy-5-(trifluoromethoxy)pyridine-4-carboxylic acid
3,5-Dichloro-2-(trifluoromethoxy)pyridine-4-acetic acid
2-Hydroxy-4-(trifluoromethoxy)pyridine-5-carboxylic acid
3,4-Dichloro-5-(trifluoromethoxy)pyridine-2-acetic acid
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