Using COCc1cn2c(C)c(C)nc2c2c1[C@@H](O)[C@H](O)[C@@H](c1ccccc1)N2, CO to produce COCc1cn2c(C)c(C)nc2c2c1[C@H](OC)[C@H](O)[C@@H](c1ccccc1)N2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.