Using CC(CCCN(C)C)N=C=N, O=C(O)CC(c1ccc(Cl)cc1)c1ccc(Br)cc1 to produce CNC(=O)CC(c1ccc(Cl)cc1)c1ccc(Br)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.