Ethyl 2-(fluoromethyl)-3-hydroxy-4-(trifluoromethoxy)pyridine-5-carboxylate
Methyl 3-(fluoromethyl)-6-hydroxy-4-(trifluoromethoxy)pyridine-2-carboxylate
3-(Chloromethyl)-6-(difluoromethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine
4-(Fluoromethyl)-3-hydroxy-2-(trifluoromethoxy)pyridine-6-acetic acid