Using COC(=O)C(c1ccc(Cn2c(C)c(CC(C)C)sc2=O)cc1)C1CCCC1 to produce Cc1c(CC(C)C)sc(=O)n1Cc1ccc(C(C(=O)O)C2CCCC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.