Using CC(C)CC=O, CC[C@H](C)[C@@H](C(=O)N[C@@H](Cc1ccccc1)[C@@H](O)CNNC(=O)[C@@H](NC(=O)OC)C(C)(C)C)N1CCN(Cc2csc(COC)n2)C1=O to produce CC[C@H](C)[C@@H](C(=O)N[C@@H](Cc1ccccc1)[C@@H](O)CN(CCC(C)C)NC(=O)[C@@H](NC(=O)OC)C(C)(C)C)N1CCN(Cc2csc(COC)n2)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.