Using COc1ccc(C(=O)c2c(Cc3ccccc3)sc(C)c2C)cc1C1CCCC1 to produce Cc1sc2cc3ccccc3c(-c3ccc(O)c(C4CCCC4)c3)c2c1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.