6-(Chloromethyl)-4-hydroxy-2-(trifluoromethoxy)-3-(trifluoromethyl)pyridine
3-(Chloromethyl)-6-(difluoromethyl)-2-hydroxy-5-(trifluoromethoxy)pyridine
5-(Chloromethyl)-2-(difluoromethyl)-3-hydroxy-6-(trifluoromethoxy)pyridine
6-(Difluoromethyl)-4-iodo-2-methyl-3-(trifluoromethoxy)pyridine