2,4-Dihydroxy-5-(trifluoromethoxy)pyridine-3-carboxaldehyde
2,3-Dihydroxy-6-(trifluoromethoxy)pyridine-5-carboxaldehyde
6-(Difluoromethyl)-2-methyl-4-(trifluoromethoxy)pyridine-3-methanol
2,3-Dihydroxy-5-(trifluoromethoxy)pyridine-4-carboxaldehyde
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