Using OB(O)c1cc2ccccc2o1, Nc1nc(I)nc2c1ncn2[C@@H]1O[C@H](CO)[C@@H](O)[C@H]1O to produce Nc1nc(-c2cc3ccccc3o2)nc2c1ncn2[C@@H]1O[C@H](CO)[C@@H](O)[C@H]1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.