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