Using CC(C)(C)OC(=O)n1cc(Br)c(N(C(=O)OCC(Cl)(Cl)Cl)C(=O)OCC(Cl)(Cl)Cl)n1 to produce CC(C)(C)OC(=O)n1cc(Br)c(NC(=O)OCC(Cl)(Cl)Cl)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.