Using OC1CCNC1, O=C(O)c1ccc(Cn2c(-c3ccccc3)nc3ccccc32)cc1 to produce O=C(c1ccc(Cn2c(-c3ccccc3)nc3ccccc32)cc1)N1CCC(O)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.