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