Using Cc1cc(Sc2ccc(O)c(C)c2)ccc1O, CC(C)(C)OC(=O)CBr to produce Cc1cc(Sc2ccc(OCC(=O)OC(C)(C)C)c(C)c2)ccc1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.