Using C1COCCN1, OC[C@H]1O[C@@H](n2cnc3c(On4nnc5ccccc54)ncnc32)C[C@@H]1O to produce OC[C@H]1O[C@@H](n2cnc3c(N4CCOCC4)ncnc32)C[C@@H]1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.