Using CC(C)(C)OC(=O)N1CCNCC1, CCOC(=O)C(C)(C)Br to produce CCOC(=O)C(C)(C)N1CCN(C(=O)OC(C)(C)C)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.