Using CCc1cc(C(C)C(CC)c2cc3cc(C(=O)OC)ccc3o2)ccc1OCC(=O)C(C)(C)C to produce CCc1cc(C(C)C(CC)c2cc3cc(C(=O)O)ccc3o2)ccc1OCC(=O)C(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.