Using BrC1C=CCC1, O=C1CC[C@H](c2cccc(Cl)c2)[C@@H](c2ccc(Cl)cc2)N1 to produce O=C1CC[C@H](c2cccc(Cl)c2)[C@@H](c2ccc(Cl)cc2)N1C1C=CCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.