Using CC(C)(C)OC(=O)CBr, CCCCCn1cc(C(=O)Cc2ccccc2O)c2ccccc21 to produce CCCCCn1cc(C(=O)Cc2ccccc2OCC(=O)OC(C)(C)C)c2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.