Using O=C([O-])[O-], CCCCCCCCCCCCOc1ccc(C=O)cc1OCCCCCCCCCCCC to produce C=Cc1ccc(OCCCCCCCCCCCC)c(OCCCCCCCCCCCC)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.