2-Hydroxy-6-nitro-4-(trifluoromethoxy)pyridine-3-sulfonyl chloride
Ethyl 3-hydroxy-4-methoxy-2-(trifluoromethoxy)pyridine-6-acetate
Ethyl 2-hydroxy-6-methoxy-5-(trifluoromethoxy)pyridine-3-acetate
Ethyl 2-hydroxy-4-methoxy-6-(trifluoromethoxy)pyridine-3-acetate