Using CCOC(C#CC(=O)OC)OCC, Oc1ccc(C(F)(F)F)cc1 to produce CCOC(OCC)/C(=C/C(=O)OC)Oc1ccc(C(F)(F)F)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.