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