2-Hydroxy-4-nitro-6-(trifluoromethoxy)pyridine
3,6-Dichloro-2-methyl-4-(trifluoromethoxy)pyridine
3-Hydroxy-6-methoxy-2-(trifluoromethoxy)pyridine
2,3-Difluoro-6-nitro-4-(trifluoromethoxy)pyridine
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