Using COc1ccc(-c2ccc3c(c2)COC3=O)c(OC)c1O, COCC1(CBr)COC1 to produce COCC1(COc2c(OC)ccc(-c3ccc4c(c3)COC4=O)c2OC)COC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.