Using CN1CCN(CCCn2c(N)nc3ccccc32)CC1, O=C(Cl)c1ccc(Cl)c(Cl)c1 to produce CN1CCN(CCCn2c(NC(=O)c3ccc(Cl)c(Cl)c3)nc3ccccc32)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.