Using COC(=O)c1ccc(CBr)cc1C(=O)OC, Sc1cccc(Br)c1 to produce COC(=O)c1ccc(CSc2cccc(Br)c2)cc1C(=O)OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.