Using CCCCOC(=O)C(NC(=O)OC(C)(C)C)OC(C)=O, [O-]c1ccccc1 to produce CCCCOC(=O)C(NC(=O)OC(C)(C)C)Oc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.