Using Nc1cc(/C=C/N2C(=O)c3ccccc3C2=O)cc(C(F)(F)F)c1 to produce Nc1cc(CCN2C(=O)c3ccccc3C2=O)cc(C(F)(F)F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.