2-Amino-5-hydroxy-4-(trifluoromethoxy)pyridine-3-carboxaldehyde
3,5-Dihydroxy-4-fluoro-2-(trifluoromethoxy)pyridine
5-Amino-4-chloro-2-hydroxy-3-(trifluoromethoxy)pyridine
4,5-Dihydroxy-3-fluoro-2-(trifluoromethoxy)pyridine
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