Using COc1ccc(CCBr)cc1, O=CC1CCNC(c2nc3c(Cl)cccc3s2)C1 to produce COc1ccc(CCN2CCC(C=O)CC2c2nc3c(Cl)cccc3s2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.