Using CCOC(=O)C1=CCN(C(=O)OC(C)(C)C)CCC1=O, C[Mg]Br to produce CCOC(=O)C1C(=O)CCN(C(=O)OC(C)(C)C)CC1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.