Using O=C(c1cc2cccc(N3CCN(Cc4ccccc4)CC3)c2o1)N1CCC1 to produce O=C(c1cc2cccc(N3CCNCC3)c2o1)N1CCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.