Ethyl 3-(fluoromethyl)-5-hydroxy-6-(trifluoromethoxy)pyridine-2-carboxylate
Methyl 2-(difluoromethyl)-3-iodo-5-methylpyridine-4-acetate
Ethyl 6-bromo-2-(difluoromethyl)-4-hydroxypyridine-3-acetate
Methyl 2-cyano-4-methoxy-6-(trifluoromethoxy)pyridine-3-acetate