Using Cn1cc(-c2cc(S(C)(=O)=O)ccc2Oc2ccc(F)cc2F)c2cc(C=O)[nH]c2c1=O, C[Mg]Br to produce CC(O)c1cc2c(-c3cc(S(C)(=O)=O)ccc3Oc3ccc(F)cc3F)cn(C)c(=O)c2[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.