Using C=CCOC(=O)N1C[C@@H]2C[C@H]1C(=O)S2, NCCc1ccccc1 to produce C=CCOC(=O)N1C[C@@H](S)C[C@H]1C(=O)NCCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.