Using O=Cc1ccc(C(=O)O)cc1, Cc1ccc(-c2cc3ccccc3o2)cc1 to produce O=C(O)c1ccc(C=Cc2ccc(-c3cc4ccccc4o3)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.