Using CC(O)c1oc(=O)c2ccccc2c1C1=CCN(C(=O)OC(C)(C)C)CC1, BrP(Br)Br to produce CC(Br)c1oc(=O)c2ccccc2c1C1=CCN(C(=O)OC(C)(C)C)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.