Using O=C(c1ccccc1)n1ccn(-c2ccccc2)ccn1C(=O)c1ccccc1 to produce O=C(c1ccccc1)N1CCNCCN1C(=O)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.