Using O=C(Cc1nc(N2CCOCC2)cc(=O)[nH]1)Nc1ccccc1O to produce O=c1cc(N2CCOCC2)nc(Cc2nc3ccccc3o2)[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.