Using CCOC(=O)CN=C(c1ccccc1)c1ccccc1, Nc1ncc(Br)cc1CBr to produce O=C1Nc2ncc(Br)cc2CC1N=C(c1ccccc1)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.