Ethyl 6-(difluoromethyl)-4-hydroxy-3-(trifluoromethoxy)pyridine-2-acetate
Ethyl 3-hydroxy-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-5-acetate
Ethyl 5-hydroxy-2-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-6-acetate
4-Hydroxy-3-nitro-2-(trifluoromethoxy)pyridine-5-carbonyl chloride