Using CCCc1c(OCCCOc2ccccc2)ccc2c1OC(CCC(=O)O)(CCC(=O)O)CC2=O to produce CCCc1c(OCCCOc2ccccc2)ccc2c1OC(CCC(=O)O)(CCC(=O)O)CC2O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.