Using Br[Mg]c1ccccc1, CN(C)CCOc1ccc2c(c1)OC(C)(C)CC2=O to produce CN(C)CCOc1ccc2c(c1)OC(C)(C)C=C2c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.