Using NC(=O)CCN(CCCO)C(=O)OCc1ccccc1, BrC(Br)(Br)Br to produce NC(=O)CCN(CCCBr)C(=O)OCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.