Using COC(=O)C(N)Cc1c[nH]c2ccccc12, CCCCC=O to produce CCCC[C@@H]1N[C@H](C(=O)OC)Cc2c1[nH]c1ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.