Using O=C(Nc1ccccc1C(=O)Nc1ccc(Cl)cn1)OC1CCNC1, O=C1CCCCC1 to produce O=C(Nc1ccccc1C(=O)Nc1ccc(Cl)cn1)OC1CCN(C2CCCCC2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.