Using CCOC(=O)C(C#N)=Cc1ccc(Br)cc1, Clc1ccc([Mg]Br)cc1 to produce CCOC(=O)C(C#N)C(c1ccc(Cl)cc1)c1ccc(Br)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.