Using O=Cc1ccccc1, COC(OC)c1cc(OCc2ccccc2)ccc1Br to produce COC(OC)c1cc(OCc2ccccc2)ccc1C(O)c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.