Using COc1ccc(-c2ccc3ccc4cccc5ccc2c3c45)c(-c2ccccc2)c1 to produce Oc1ccc(-c2ccc3ccc4cccc5ccc2c3c45)c(-c2ccccc2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.