3,5-Dihydroxy-2-(difluoromethyl)-6-(trifluoromethoxy)pyridine
3-Hydroxy-2-nitro-6-(trifluoromethoxy)pyridine
4-(Chloromethyl)-3-nitro-5-(trifluoromethoxy)pyridine
3,4-Dihydroxy-6-(difluoromethyl)-2-(trifluoromethoxy)pyridine
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