Using CC(=O)c1ccc(OC2CCN(C(=O)OC(C)(C)C)CC2)nc1, CCOC(=O)C(C)(C)Br to produce CCOC(=O)C(C)(C)CC(=O)c1ccc(OC2CCN(C(=O)OC(C)(C)C)CC2)nc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.