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