Using CN1CCNCC1, Brc1ccc2c(c1)C(c1ccccn1)=NCc1nnc(Br)n1-2 to produce CN1CCN(c2nnc3n2-c2ccc(Br)cc2C(c2ccccn2)=NC3)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.