Using CSc1ncc(C#N)c(-c2cnc3c(C(C)=O)cccn23)n1, C[Mg]Br to produce CSc1ncc(C#N)c(-c2cnc3c(C(C)(C)O)cccn23)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.