Using C=CCBr, Cc1cccnc1C1CCCC(c2ncccc2C)N1CCc1cnc[nH]1 to produce C=CCn1cnc(CCN2C(c3ncccc3C)CCCC2c2ncccc2C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.