3,4-Dimethoxy-6-nitro-2-(trifluoromethoxy)pyridine
3-Amino-5-fluoro-4-hydroxy-2-(trifluoromethoxy)pyridine
3,4-Dimethoxy-2-nitro-6-(trifluoromethoxy)pyridine
3-Amino-4-fluoro-5-hydroxy-2-(trifluoromethoxy)pyridine
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