Using C[Mg]Br, COc1cc(C#CCCCC(=O)c2ccc(Cl)c(Cl)c2)ccc1-n1cnc(C)n1 to produce COc1cc(C#CCCCC(C)(O)c2ccc(Cl)c(Cl)c2)ccc1-n1cnc(C)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.