5-Hydroxy-2-(trifluoromethoxy)pyridine-4-sulfonamide
3-(Difluoromethyl)-4-methyl-5-(trifluoromethoxy)pyridine
4-Hydroxy-3-(trifluoromethoxy)pyridine-5-sulfonamide
2-(Difluoromethyl)-6-methyl-4-(trifluoromethoxy)pyridine
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