Using CN1CCNCC1, O=C1Nc2cccnc2N(C(=O)CCCCCl)c2ccccc21 to produce CN1CCN(CCCCC(=O)N2c3ccccc3C(=O)Nc3cccnc32)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.