Using CC(C)c1noc(C2CCNCC2)n1, Clc1ncnc2c(Br)csc12 to produce CC(C)c1noc(C2CCN(c3ncnc4c(Br)csc34)CC2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.