Using CI, OC[C@@H]1ON=C2CO[C@@H](C3CC3)C[C@H]21 to produce COC[C@@H]1ON=C2CO[C@@H](C3CC3)C[C@H]21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.