Using CCOC(=O)[C@H](Cc1ccc(O)cc1)NC(=O)C(C)(C)NC(=O)[C@@H](SC(C)=O)C(C)C to produce CC(C)[C@H](S)C(=O)NC(C)(C)C(=O)N[C@@H](Cc1ccc(O)cc1)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.