Methyl 5-(bromomethyl)-3-hydroxy-2-(trifluoromethoxy)pyridine-4-acetate
Methyl 3-(bromomethyl)-5-hydroxy-4-(trifluoromethoxy)pyridine-2-acetate
2-(Chloromethyl)-3-iodo-6-methoxy-5-(trifluoromethoxy)pyridine
3-(Difluoromethyl)-4-hydroxy-6-methoxy-2-(trifluoromethoxy)pyridine