Using CC1CC(=O)NN=C1c1ccc(N)c(N)c1, O=C(CBr)c1ccccc1 to produce CC1CC(=O)NN=C1c1ccc2c(c1)NCC(c1ccccc1)N2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.