Using CN1CCNCC1, CCSc1ncc2cc(-c3ccccc3)c(-c3ccc(C=O)cc3)nc2n1 to produce CN1CCN(c2ncc3cc(-c4ccccc4)c(-c4ccc(C=O)cc4)nc3n2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.