4-Methoxy-6-nitro-2-(trifluoromethoxy)pyridine-3-sulfonyl chloride
2-(Chloromethyl)-4-methoxy-3-(trifluoromethoxy)pyridine-6-acetonitrile
4-Methoxy-2-nitro-5-(trifluoromethoxy)pyridine-3-sulfonyl chloride
4-(Fluoromethyl)-2-methoxy-3-(trifluoromethoxy)pyridine-5-acetic acid