Using COc1ncnc2c(CN[C@@H](CO)[C@@H](O)CO)cn(COCc3ccccc3)c12 to produce O=c1[nH]cnc2c(CN[C@@H](CO)[C@@H](O)CO)c[nH]c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.