Ethyl 6-cyano-3-(difluoromethyl)-2-hydroxypyridine-4-carboxylate
5-(Chloromethyl)-2-cyano-3-(trifluoromethoxy)-4-(trifluoromethyl)pyridine
3-(Bromomethyl)-4-(difluoromethyl)-6-iodo-2-methoxypyridine
N-Butyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-amine