2-Hydroxy-4-nitro-5-(trifluoromethoxy)pyridine
2,6-Dimethyl-3-iodo-5-(trifluoromethoxy)pyridine
2-Hydroxy-3-nitro-5-(trifluoromethoxy)pyridine
3,6-Dimethyl-2-iodo-4-(trifluoromethoxy)pyridine
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