Using NC1CCOCC1, CC(C)(C)c1nnc([C@H]2O[C@@H](n3cnc4c(Cl)ncnc43)[C@H](O)[C@@H]2O)o1 to produce CC(C)(C)c1nnc([C@H]2O[C@@H](n3cnc4c(NC5CCOCC5)ncnc43)[C@H](O)[C@@H]2O)o1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.