Using COC(=O)c1ccc(Cn2c(C(=O)OC)c(-c3ccccc3)c3cc(Cl)ccc3c2=O)cc1 to produce COC(=O)c1c(-c2ccccc2)c2cc(Cl)ccc2c(=O)n1Cc1ccc(C(=O)O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.