Using COCOc1ccc(C2(C)COc3cc(OCOC)ccc3C2CCCCc2ccc(O)cc2)cc1, CC(C)(C)OC(=O)CBr to produce COCOc1ccc(C2(C)COc3cc(OCOC)ccc3C2CCCCc2ccc(OCC(=O)OC(C)(C)C)cc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.