Using CCOC(=O)Cl, c1ccc(CN2CCOC(CN3c4ccccc4CCc4ccccc43)C2)cc1 to produce CCOC(=O)N1CCOC(CN2c3ccccc3CCc3ccccc32)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.