Using CCCc1c(OCCCOc2cccnc2CCC(=O)OC)ccc(C(C)=O)c1O, O=C([O-])[O-] to produce CCCc1c(OCCCOc2cccnc2CCC(=O)OC)ccc(C(C)=O)c1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.