Using COC(=O)COc1ccc(Cl)c2nc(C)c(Cc3ccc(Cl)cc3)c(OC)c12 to produce COc1c(Cc2ccc(Cl)cc2)c(C)nc2c(Cl)ccc(OCC(=O)O)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.