4-Bromo-5-nitro-2-(trifluoromethoxy)pyridine-3-acetonitrile
4-Chloro-5-(fluoromethyl)-3-methoxy-2-(trifluoromethoxy)pyridine
4-Bromo-3-nitro-5-(trifluoromethoxy)pyridine-2-acetonitrile
2-Chloro-3-(chloromethyl)-6-cyano-4-(trifluoromethoxy)pyridine
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