Using [OH-], COc1ccc2c(c1)CC(C)OC2c1ccc([N+](=O)[O-])cc1 to produce COc1ccc2c(c1)CC(C)OC2(O)c1ccc([N+](=O)[O-])cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.