Using CCCCS(=O)(=O)N[C@@H](CNC(=O)c1cc(OCCCC2CCN(C(=O)OC(C)(C)C)CC2)no1)C(=O)OC to produce CCCCS(=O)(=O)N[C@@H](CNC(=O)c1cc(OCCCC2CCN(C(=O)OC(C)(C)C)CC2)no1)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.