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