Using FS(F)(F)F, O=C1Cc2ccccc2N(Cc2ccccc2)c2ccccc21 to produce FC1=Cc2ccccc2N(Cc2ccccc2)c2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.