Using C(=Cc1ccc(OCc2ccccc2)c(OCc2ccccc2)c1)CCCCCCC1COCCO1 to produce CC(=O)CCCCCCC=Cc1ccc(OCc2ccccc2)c(OCc2ccccc2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.