Using C=CCOc1ccc2c(=O)c(C)c(-c3ccccc3)oc2c1C(C)=O, O=Cc1ccccc1 to produce C=CCOc1ccc2c(=O)c(C)c(-c3ccccc3)oc2c1C(=O)C=Cc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.