Using COC(=O)Cc1ccc(OC/C=C(\C)c2ccc3c(c2)Cc2ccccc2-3)cc1 to produce C/C(=C\CO)c1ccc2c(c1)Cc1ccccc1-2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.