Using COc1cc(Br)c(CBr)cc1OC, COC(=O)c1ccc(O)cc1O to produce COC(=O)c1ccc(OCc2cc(OC)c(OC)cc2Br)cc1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.