Using CN1CCNCC1, COc1ccc2c(c1C=O)CCN(C(=O)c1cnc(Br)s1)C2 to produce COc1ccc2c(c1C=O)CCN(C(=O)c1cnc(N3CCN(C)CC3)s1)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.