Using c1ccc(C(c2ccccc2)C2CNCCN2)cc1, CC(C)(C)OC(=O)OC(C)(C)C to produce CC(C)(C)OC(=O)N1CCNC(C(c2ccccc2)c2ccccc2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.