Using CC(=O)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)C to produce CC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCCC(C)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.