Using CCOC(=O)C1CCN(C(=O)OC(C)(C)C)CC1, CC(C)(C)n1ncc(CBr)c1Br to produce CCOC(=O)C1(Cc2cnn(C(C)(C)C)c2Br)CCN(C(=O)OC(C)(C)C)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.