Using C1CCOC1, COC(=O)C1NC(=O)c2sc(Br)cc2C1c1ccc(Cl)c(Cl)c1 to produce C=CCN1C(=O)c2sc(Br)cc2C(c2ccc(Cl)c(Cl)c2)C1C(=O)OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.