Using O=Cc1ccccc1, COC(=O)C1CC(N)CN1C(=O)OC(C)(C)C to produce COC(=O)C1CC(NCc2ccccc2)CN1C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.