Using CC(C)(C)OC(=O)C(C1NC(C(=O)OCc2ccccc2)C2(CCSCC2)S1)N1C(=O)c2ccccc2C1=O to produce CC(C)(C)OC(=O)C(N)C1NC(C(=O)OCc2ccccc2)C2(CCSCC2)S1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.