Using CC(C)(C)OC(=O)NC1CNc2ccccc2NC1=O, O=C([O-])O to produce CN1CC(NC(=O)OC(C)(C)C)C(=O)Nc2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.