Using COc1cc(Nc2nc(COCC(F)(F)F)cc(C(C)=O)n2)ccc1-c1cnnc(C)c1, C[Mg]Br to produce COc1cc(Nc2nc(COCC(F)(F)F)cc(C(C)(C)O)n2)ccc1-c1cnnc(C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.