Using CC(C)(C)OC(=O)C1CCc2occc2CN1, O=C1CCC(=O)N1Br to produce CC(C)(C)OC(=O)C1CCc2oc(Br)cc2CN1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.