Methyl 2-cyano-6-iodo-4-(trifluoromethoxy)pyridine-3-acetate
Ethyl 5-cyano-4-nitro-2-(trifluoromethoxy)pyridine-3-acetate
Methyl 2-cyano-5-iodo-6-(trifluoromethoxy)pyridine-3-acetate
Ethyl 3-cyano-4-nitro-5-(trifluoromethoxy)pyridine-2-acetate
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