Using O=C(Cl)CCl, CCOC(=O)CNCC1(Nc2ccccc2)CCCCC1 to produce CCOC(=O)CN1CC2(CCCCC2)N(c2ccccc2)CC1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.