Using COC1(c2ccc(C(F)(F)F)cc2CO)CCN(C(=O)OC(C)(C)C)CC1, O=C1CCC(=O)N1Br to produce COC1(c2ccc(C(F)(F)F)cc2CBr)CCN(C(=O)OC(C)(C)C)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.