Using O=C1NC(=O)C(=Cc2ccccc2)N1, C=CC(=O)OCC(C)C to produce CC(C)COC(=O)CCN1C(=O)NC(=Cc2ccccc2)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.