Using CCOC(=O)CBr, CCCOc1ccc2c(c1)C(c1ccc(OC)cc1O)CC2c1ccc2c(c1)OCO2 to produce CCCOc1ccc2c(c1)C(c1ccc(OC)cc1OCC(=O)OCC)CC2c1ccc2c(c1)OCO2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.