Using CCc1cc2c(c(Sc3ccccc3)cc(=O)n2Cc2ccc(C(=O)OC)cc2)c(CC)n1 to produce CCc1cc2c(c(Sc3ccccc3)cc(=O)n2Cc2ccc(C(=O)O)cc2)c(CC)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.