Ethyl 3-cyano-2-nitro-4-(trifluoromethoxy)pyridine-6-acetate
4-Cyano-3-nitro-2-(trifluoromethoxy)pyridine-6-acetic acid
Ethyl 2-cyano-6-nitro-5-(trifluoromethoxy)pyridine-3-acetate
3-Cyano-2-nitro-4-(trifluoromethoxy)pyridine-6-acetic acid
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