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Ugi-adducts were obtained via a one-pot four-component reaction of divergent aldehydes, amines, aroylacrylic acids and isocyanide in methanol. These products were subjected to intramolecular Michael addition in the presence of K2CO3 in DMF at room temperature to afford a single product. Literally, the formation of two heterocyclic systems, 6-membered diones or 7-membered diones are possible, which...
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