Using CC(C)(C)OC(=O)N1CCC(CCN)CC1, COC(=O)c1cc(C(=O)OC)n(CCBr)n1 to produce COC(=O)c1cc2n(n1)CCN(CCC1CCN(C(=O)OC(C)(C)C)CC1)C2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.