Using Cc1cccc(C=Cc2ccccc2C(=O)O)c1, Cc1cccc(CCc2ccccc2C(=O)O)c1 to produce O=C(O)c1ccccc1CCCCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.