4-Bromo-2-nitro-5-(trifluoromethoxy)pyridine-3-carboxylic acid
3-Bromo-2-cyano-6-(trifluoromethoxy)pyridine-5-acetic acid
4-Bromo-2-(difluoromethyl)-3-iodo-5-(trifluoromethoxy)pyridine
3-Bromo-2-cyano-5-(trifluoromethoxy)pyridine-4-acetic acid
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