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