Using CCOC(=O)CBr, CCCc1cc2cc(O)c(Cl)c(Cl)c2s1 to produce CCCc1cc2cc(OCC(=O)OCC)c(Cl)c(Cl)c2s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.