Using COc1ccc(C2Cc3cc(OC)ccc3C2c2ccc(OCCN3CCCC3)cc2)cc1 to produce Oc1ccc(C2Cc3cc(O)ccc3C2c2ccc(OCCN3CCCC3)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.