Ethyl 4-(bromomethyl)-3-methoxy-5-(trifluoromethoxy)pyridine-2-acetate
3-(Bromomethyl)-5-methoxy-2-(trifluoromethoxy)pyridine-6-carboxylic acid
3-Methyl-2-nitro-5-(trifluoromethoxy)pyridine-6-carboxylic acid
2-(Bromomethyl)-3-methoxy-4-(trifluoromethoxy)pyridine-6-acetic acid