Using O=Cc1c(O)cccc1O, CC(=O)N1CCC(CCl)=C(c2ccccc2)C1 to produce CC(=O)N1CCC(COc2cccc(O)c2C=O)=C(c2ccccc2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.