2-Hydroxy-4-methoxy-3-(trifluoromethoxy)pyridine-6-carboxylic acid
2-Hydroxy-3-methoxy-6-(trifluoromethoxy)pyridine-4-carboxylic acid
3-(Difluoromethyl)-2-fluoro-6-nitro-4-(trifluoromethoxy)pyridine
4-Fluoro-5-(fluoromethyl)-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine