Using CCOC(=O)Cn1c(C(=O)OCC)c2ccc(Cl)cc2c1-c1ccccc1 to produce CCOC(=O)c1c2ccc(Cl)cc2c(-c2ccccc2)n1CC(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.