Using CCOC(=O)CC(=O)Cl, Nc1ccc(N2CCC(=O)CC2)cc1 to produce CCOC(=O)CC(=O)Nc1ccc(N2CCC(=O)CC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.