2-(Fluoromethyl)-3-hydroxy-5-methyl-6-(trifluoromethoxy)pyridine
3-(Chloromethyl)-4-hydroxy-5-(trifluoromethoxy)pyridine-2-carboxylic acid
3-(Chloromethyl)-2-hydroxy-5-(trifluoromethoxy)pyridine-4-carboxylic acid
2-(Chloromethyl)-6-hydroxy-4-(trifluoromethoxy)pyridine-3-carboxylic acid