5-Hydroxy-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-3-carboxylic acid
2-Hydroxy-5-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-6-carboxylic acid
5-(Difluoromethyl)-2-iodo-3-methyl-4-(trifluoromethoxy)pyridine
3-Hydroxy-2-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-5-carboxylic acid