4-Hydroxy-5-methoxy-3-nitro-2-(trifluoromethoxy)pyridine
4-Hydroxy-3-methoxy-2-nitro-5-(trifluoromethoxy)pyridine
4-Hydroxy-6-methoxy-3-nitro-2-(trifluoromethoxy)pyridine
3-(Chloromethyl)-5-(difluoromethyl)-2-fluoro-6-(trifluoromethoxy)pyridine
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