4-Nitro-3-(trifluoromethoxy)pyridine-5-carboxylic acid
4-Methoxy-2-(trifluoromethoxy)pyridine-3-carboxylic acid
3-Nitro-6-(trifluoromethoxy)pyridine-2-acetic acid
3-Methoxy-2-(trifluoromethoxy)pyridine-4-carboxylic acid
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