Methyl 2-methoxy-3-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-4-acetate
4-(Difluoromethyl)-3-nitro-6-(trifluoromethoxy)pyridine-2-carboxylic acid
4-Methoxy-3-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-2-acetic acid
4-(Difluoromethyl)-3-nitro-2-(trifluoromethoxy)pyridine-6-carboxylic acid