Using CC(C)(C)OC(=O)OC(C)(C)C, CN1CC(=O)NC(Cc2ccccc2)C1=O to produce CN1CCN(C(=O)OC(C)(C)C)C(Cc2ccccc2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.