Using COC(=O)c1ccc(OC)c(O)c1O, BrCC1(CBr)COCOC1 to produce COC(=O)c1ccc(OC)c2c1OCC1(COCOC1)CO2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.