Using Clc1ccccc1CBr, CCOC(=O)c1cccc(Cc2cc(Cl)ccc2O)n1 to produce CCOC(=O)c1cccc(Cc2cc(Cl)ccc2OCc2ccccc2Cl)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.