Using CC(C)NC(=O)CN1CCNCC1, O=C(O)c1ccc(/C=C/c2n[nH]c3ccccc23)cc1 to produce CC(C)NC(=O)CN1CCN(C(=O)c2ccc(/C=C/c3n[nH]c4ccccc34)cc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.