Using O=C(O)c1ccc(Nc2ncc(Br)n3ccnc23)cc1, CCN(CC)CCN to produce CCN(CC)CCNC(=O)c1ccc(Nc2ncc(Br)n3ccnc23)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.