Using O=C1NCCC1N1CCCCC1, Clc1cc(Br)cc(Cl)c1CBr to produce O=C1C(N2CCCCC2)CCN1Cc1c(Cl)cc(Br)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.