Using C1COCCO1, CCOC(=O)c1cnc2cc(C(F)(F)F)ccc2c1OS(=O)(=O)C(F)(F)F to produce CCOC(=O)c1cnc2cc(C(F)(F)F)ccc2c1-c1cccc(C=O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.