Using CCC#Cc1cc(OC(F)(F)F)cc2c1OC(C(F)(F)F)C(C(=O)OCC)=C2 to produce CCCCc1cc(OC(F)(F)F)cc2c1OC(C(F)(F)F)C(C(=O)OCC)=C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.