Using COC(=O)C(C(C)C)N1C(=O)C(NC(C)=O)C1c1ccccc1 to produce CC(=O)N[C@@H](Cc1ccccc1)C(=O)N[C@H](C(=O)O)C(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.