Using CCOC(=O)C(CC)c1cc2n(c(=O)c1COC(C)=O)CCC21OCCO1 to produce CCC1C(=O)OCc2c1cc1n(c2=O)CCC12OCCO2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.