3-Methyl-2-nitro-5-(trifluoromethoxy)pyridine-6-sulfonyl chloride
3-Methyl-2-nitro-4-(trifluoromethoxy)pyridine-5-sulfonyl chloride
Ethyl 4-(fluoromethyl)-5-methoxy-2-(trifluoromethoxy)pyridine-3-carboxylate
6-Methyl-2-nitro-4-(trifluoromethoxy)pyridine-3-sulfonyl chloride