Using Cc1cc(Cl)ccc1C(c1ccc(Cl)cc1C)N1CCN(C(=O)OC(C)(C)C)CC1 to produce Cc1cc(Cl)ccc1C(c1ccc(Cl)cc1C)N1CCNCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.