Using Clc1ccncc1, O=C(N[C@@H](COCC1CCNCC1)c1ccccc1)c1ccc2c(Cl)c[nH]c2c1 to produce O=C(N[C@@H](COCC1CCN(c2ccncc2)CC1)c1ccccc1)c1ccc2c(Cl)c[nH]c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.