Using CCCCN(CCCC)c1ccc(C=Cc2ccc(CO)cc2)c(OC)c1 to produce CCCCN(CCCC)c1ccc(C=Cc2ccc(C=O)cc2)c(OC)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.