Using Cc1ccc(S(=O)(=O)NC(=N)NCCC[C@H](NC(=O)OCc2ccccc2)C(=O)N[C@@H](CO)C(=O)N[C@@H](CO)C(=O)O)cc1 to produce Cc1ccc(S(=O)(=O)NC(=N)NCCC[C@H](N)C(=O)N[C@@H](CO)C(=O)N[C@@H](CO)C(=O)O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.