4-Hydroxy-3-methyl-2-(trifluoromethoxy)pyridine-5-acetic acid
Ethyl 6-fluoro-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-3-acetate
Ethyl 2-fluoro-6-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-4-acetate
4-Hydroxy-2-methyl-3-(trifluoromethoxy)pyridine-5-acetic acid