Using COc1ncc(Nc2ncc(C(C)=O)nc2-c2cc(N)nc(C)n2)cc1F, C[Mg]Br to produce COc1ncc(Nc2ncc(C(C)(C)O)nc2-c2cc(N)nc(C)n2)cc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.