Using Nc1c(Cl)ncnc1Cl, N[C@@H]1C[C@H](CO)[C@@H](O)[C@H]1O to produce Nc1c(Cl)ncnc1N[C@@H]1C[C@H](CO)[C@@H](O)[C@H]1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.