5-Methyl-2-nitro-4-(trifluoromethoxy)pyridine-3-sulfonyl chloride
4-Methyl-5-nitro-2-(trifluoromethoxy)pyridine-3-sulfonyl chloride
4-Methyl-3-nitro-5-(trifluoromethoxy)pyridine-2-sulfonyl chloride
4-Methyl-6-nitro-2-(trifluoromethoxy)pyridine-3-sulfonyl chloride