Using CC1(CCC2=C3CCC4(C)C(=O)CCC4C3OCC2=O)OCCO1, O=C([O-])O to produce CC1(CCC23OC4CC5(C)C(=O)CCC5C(OCC2=O)C43)OCCO1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.