Methyl 2-(bromomethyl)-4-(difluoromethyl)-3-hydroxypyridine-6-carboxylate
Ethyl 3-(bromomethyl)-4-cyano-2-(trifluoromethoxy)pyridine-6-acetate
5-Chloro-4-(difluoromethyl)pyridine-2-acetonitrile
Ethyl 3-amino-6-(difluoromethyl)-2-iodopyridine-4-carboxylate