Using CI, COC1CC(C2(O)CC2)N(C(=O)OCc2ccccc2)C1 to produce COC1CC(C2(OC)CC2)N(C(=O)OCc2ccccc2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.