Using CC1CN(CCC=C2c3cc(O)ccc3OCc3ncccc32)CCC1(O)c1ccc(Cl)cc1, COC(=O)CBr to produce COC(=O)COc1ccc2c(c1)C(=CCCN1CCC(O)(c3ccc(Cl)cc3)C(C)C1)C1=CC=CNC1=CO2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.