Using CNC(=O)CBr, N#Cc1cc(Nc2nc(NC3CC3)c3ncc(C#N)n3n2)c(Cl)c(N2CCNCC2=O)c1 to produce CNC(=O)CN1CCN(c2cc(C#N)cc(Nc3nc(NC4CC4)c4ncc(C#N)n4n3)c2Cl)C(=O)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.