Using COc1ccc([Mg]Br)cc1, O=C1CCCN(Cc2ccccc2)C1 to produce COc1ccc(C2(O)CCCN(Cc3ccccc3)C2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.