Using COC(=O)c1ccc(-c2ccc(OCCN[C@@H](C)[C@H](O)c3ccc(O)cc3)cc2)cc1SC(C)C to produce CC(C)Sc1cc(-c2ccc(OCCN[C@@H](C)[C@H](O)c3ccc(O)cc3)cc2)ccc1C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.