Using C=CCBr, CC(C)c1oc2c(Br)c(NC(=O)OCc3ccccc3)ccc2c(=O)c1-c1ccc(Cl)cc1 to produce C=CCN(C(=O)OCc1ccccc1)c1ccc2c(=O)c(-c3ccc(Cl)cc3)c(C(C)C)oc2c1Br, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.