3-Bromo-6-nitro-2-(trifluoromethoxy)pyridine-5-carboxylic acid
4-Bromo-5-(fluoromethyl)-3-nitro-2-(trifluoromethoxy)pyridine
4-Chloro-2-methoxy-3-(trifluoromethoxy)pyridine-6-acetic acid
5-Bromo-2-nitro-3-(trifluoromethoxy)pyridine-6-carboxylic acid
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