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