Using Clc1ccncc1, CCNc1ncc2c(n1)N1CCC[C@H]1CN(CC1CCNCC1)C2=O to produce CCNc1ncc2c(n1)N1CCC[C@H]1CN(CC1CCN(c3ccncc3)CC1)C2=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.