Using C#C[Mg]Br, O=Cc1c(-c2ccc(F)cc2)nn2cc(C(F)(F)F)ccc12 to produce C#CC(O)c1c(-c2ccc(F)cc2)nn2cc(C(F)(F)F)ccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.