Using O=C1CCCC(=O)C1, O=S(=O)(OS(=O)(=O)C(F)(F)F)C(F)(F)F to produce O=C1C=C(OS(=O)(=O)C(F)(F)F)CCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.