Using CI, COc1ccc(Cl)c(CC(=O)c2ccc3c(c2)N(C)C(=O)CO3)c1 to produce COc1ccc(Cl)c(C(C)C(=O)c2ccc3c(c2)N(C)C(=O)CO3)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.