Using CC(C)(C)OC(=O)N[C@H]1CCS[C@H]2CCC[C@@H](C(=O)Nc3nccs3)N2C1=O to produce N[C@H]1CCS[C@H]2CCC[C@@H](C(=O)Nc3nccs3)N2C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.