Using CO[C@@H]1C[C@H](Oc2nc(N3CCNCC3)nc3ccccc23)[C@@H](O)[C@H]1O to produce O[C@@H]1COC[C@H]1Oc1nc(N2CCNCC2)nc2ccccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.