Using Nc1nc(Cl)cc(OCc2ccc(Cl)cc2Br)n1, CCOC(=O)[C@@H]1CC2(CCNCC2)CN1C(=O)OCc1ccccc1 to produce CCOC(=O)[C@@H]1CC2(CCN(c3cc(OCc4ccc(Cl)cc4Br)nc(N)n3)CC2)CN1C(=O)OCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.