Using C[C@H](c1ccc(Cl)cc1Cl)n1cnc2ccc(C3=CCNCC3)cc21, O=C1CCCCC1 to produce C[C@H](c1ccc(Cl)cc1Cl)n1cnc2ccc(C3=CCN(C4CCCCC4)CC3)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.