Using C#Cc1cc(OC(F)(F)F)cc2c1OC(C(F)(F)F)C(C(=O)OCC)=C2 to produce CCOC(=O)C1=Cc2cc(OC(F)(F)F)cc(CC)c2OC1C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.