Using COc1c(C)cc(C(=O)O)cc1C, Cc1cc(Cc2ccccc2)sc1C to produce COc1c(C)cc(C(=O)c2c(Cc3ccccc3)sc(C)c2C)cc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.