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