Using CC(C)(C)OC(=O)NCCCN, CSc1nc(Nc2cccc(C)c2)c2c(=O)[nH]cc(Br)c2n1 to produce Cc1cccc(Nc2nc(NCCCN)nc3c(Br)c[nH]c(=O)c23)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.