6-Fluoro-4-methoxy-2-nitro-3-(trifluoromethoxy)pyridine
4-Cyano-3-(fluoromethyl)-2-methoxy-6-(trifluoromethoxy)pyridine
4-Cyano-2-(fluoromethyl)-3-methoxy-6-(trifluoromethoxy)pyridine
3-Cyano-5-(fluoromethyl)-6-methoxy-2-(trifluoromethoxy)pyridine
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