Using CS(=O)(=O)CCOS(C)(=O)=O, C[C@H](NC(=O)OCc1ccccc1)C(=O)O to produce C[C@@H](C(=O)O)N(CCS(C)(=O)=O)C(=O)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.