6-Iodo-4-nitro-3-(trifluoromethoxy)pyridine-2-carboxylic acid
3-(Chloromethyl)-2-hydroxy-4-(trifluoromethoxy)-6-(trifluoromethyl)pyridine
2-(Chloromethyl)-6-hydroxy-5-(trifluoromethoxy)-3-(trifluoromethyl)pyridine
2-Iodo-4-nitro-3-(trifluoromethoxy)pyridine-5-carboxylic acid