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