Using COC(=O)CCCSc1c(Cc2cccc3ccccc23)sc2c(CC(C)C)nn(C)c(=O)c12 to produce CC(C)Cc1nn(C)c(=O)c2c(SCCCC(=O)O)c(Cc3cccc4ccccc34)sc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.