Using CSCC1=C(C(=O)OC(c2ccccc2)c2ccccc2)N2C(=O)[C@@H](NC=O)[C@H]2SC1 to produce CSCC1=C(C(=O)OC(c2ccccc2)c2ccccc2)N2C(=O)[C@@H](N)[C@H]2SC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.