Methyl 3-(difluoromethyl)-5-hydroxy-2-(trifluoromethoxy)pyridine-6-acetate
2-(Bromomethyl)-3-hydroxy-5-(trifluoromethoxy)pyridine-4-acetic acid
Methyl 3-(difluoromethyl)-4-hydroxy-6-(trifluoromethoxy)pyridine-2-acetate
Methyl 3-(difluoromethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine-6-acetate