Using C[C@@H](CN(CCCOS(C)(=O)=O)C(=O)OC(C)(C)C)NC(=O)OCc1ccccc1 to produce C[C@H]1CN(C(=O)OC(C)(C)C)CCCN1C(=O)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.