2,6-Dihydroxy-4-methyl-3-(trifluoromethoxy)pyridine
2,3-Diamino-5-hydroxy-4-(trifluoromethoxy)pyridine
2,5-Diamino-4-fluoro-3-(trifluoromethoxy)pyridine
2,5-Dihydroxy-4-methyl-3-(trifluoromethoxy)pyridine
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