Using O[C@@H]1[C@@H](CCl)OC(n2cnc3c(N[C@@H]4CCC[C@H]4OCc4ccccc4)ncnc32)[C@@H]1O to produce O[C@@H]1[C@@H](CCl)OC(n2cnc3c(N[C@@H]4CCC[C@H]4O)ncnc32)[C@@H]1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.