Methyl 3-(difluoromethyl)-2-hydroxy-6-(trifluoromethoxy)pyridine-5-acetate
Methyl 3-(difluoromethyl)-2-hydroxy-5-(trifluoromethoxy)pyridine-4-acetate
3-(Difluoromethyl)-2-hydroxy-5-(trifluoromethoxy)pyridine-6-methanol
6-(Difluoromethyl)-2-hydroxy-4-(trifluoromethoxy)pyridine-3-methanol