Using CC(C)(C)OC(=O)N1CCC(c2ccccc2)C(N)C1, CCC(CC)c1ccccc1 to produce CC(C)(C)OC(=O)N1CCC(c2ccccc2)C(N2CCC(c3ccccc3)CC2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.