Using Cc1nc2c(O[C@@H]3c4ccccc4C[C@H]3O)cccn2c1N=O to produce Cc1nc2c(O[C@@H]3c4ccccc4C[C@H]3O)cccn2c1N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.