Ethyl 2-hydroxy-3-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-4-acetate
6-(Difluoromethyl)-3-hydroxy-4-(trifluoromethoxy)pyridine-2-acetic acid
3-Hydroxy-5-nitro-2-(trifluoromethoxy)pyridine-4-methanol
Ethyl 3-(difluoromethyl)-6-hydroxy-4-(trifluoromethoxy)pyridine-2-carboxylate