5-(Chloromethyl)-4-fluoro-3-(trifluoromethoxy)pyridine-2-carboxylic acid
4-(Difluoromethyl)-2-hydroxy-5-methoxy-3-(trifluoromethoxy)pyridine
6-(Chloromethyl)-2-(difluoromethyl)-3-fluoro-4-(trifluoromethoxy)pyridine
5-(Difluoromethyl)-3-hydroxy-2-methoxy-4-(trifluoromethoxy)pyridine