Using COCC(=O)Cl, CCCN1C[C@@H](N)C[C@@H]2c3cccc4[nH]c(C)c(c34)C[C@H]21 to produce CCCN1C[C@@H](NC(=O)COC)C[C@@H]2c3cccc4[nH]c(C)c(c34)C[C@H]21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.