3-Bromo-4-cyano-6-(trifluoromethoxy)pyridine-2-carboxylic acid
4-Bromo-2-(chloromethyl)-3-nitro-5-(trifluoromethoxy)pyridine
3-Bromo-2-cyano-6-(trifluoromethoxy)pyridine-4-carboxylic acid
5-Bromo-3-(chloromethyl)-4-nitro-2-(trifluoromethoxy)pyridine
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