Using O=C(O)c1ccc(Br)nc1, Cc1cc(C2CC2)ccc1N1CCNCC1 to produce Cc1cc(C2CC2)ccc1N1CCN(C(=O)c2ccc(Br)nc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.