4-(Difluoromethyl)-5-nitro-2-(trifluoromethoxy)pyridine-3-methanol
4-(Difluoromethyl)-3-nitro-5-(trifluoromethoxy)pyridine-2-methanol
4-(Difluoromethyl)-6-nitro-2-(trifluoromethoxy)pyridine-3-methanol
4-Methyl-2-nitro-5-(trifluoromethoxy)pyridine-3-carboxylic acid