Using Cc1cc(C(=O)CCc2nc(-c3ccc(Cl)cc3O)oc2C(C)C)ccc1O, CCOC(=O)C(C)(C)Br to produce CCOC(=O)C(C)(C)Oc1ccc(C(=O)CCc2nc(-c3ccc(Cl)cc3O)oc2C(C)C)cc1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.