Using O=Cc1ccccn1, O=C(N[C@@H]1CCCNC1)c1ccc2[nH]nc(-c3ccc4c(c3)CCO4)c2c1 to produce O=C(N[C@@H]1CCCN(Cc2ccccn2)C1)c1ccc2[nH]nc(-c3ccc4c(c3)CCO4)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.