Using c1ccc(N2CCNCC2)nc1, O=C(NCCN1CCCCCC1)N1CCN(c2ccccc2)CC1 to produce CCN(CC)CCNC(=O)N1CCN(c2ccccn2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.