Ethyl 3-(difluoromethyl)-4-hydroxy-2-(trifluoromethyl)pyridine-6-acetate
Methyl 2-(bromomethyl)-6-(difluoromethyl)-3-hydroxypyridine-4-acetate
6-(Difluoromethyl)-3-iodo-2-methylpyridine-4-carboxaldehyde
Methyl 2-(bromomethyl)-5-(difluoromethyl)-3-hydroxypyridine-4-acetate