Using OC[C@H]1O[C@@H](n2cnc3c(Nc4ccccc4)cc(Cl)nc32)[C@H](O)[C@@H]1O to produce OC[C@H]1O[C@@H](n2cnc3c(Nc4ccccc4)ccnc32)[C@H](O)[C@@H]1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.