Using CC(C)(C)OC(=O)n1cc(C=O)c2c(C(=O)OCc3ccccc3)cccc21 to produce CC(C)(C)OC(=O)n1cc(CO)c2c(C(=O)OCc3ccccc3)cccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.