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