Ethyl 3-(bromomethyl)-4-(difluoromethyl)-5-hydroxypyridine-2-acetate
Methyl 2-(difluoromethyl)-3-iodo-5-methylpyridine-6-carboxylate
6-(Bromomethyl)-2-(difluoromethyl)-3-iodo-4-methoxypyridine
Ethyl 4-(chloromethyl)-3-(difluoromethyl)-6-hydroxypyridine-2-acetate