Using CCCC1c2c(ccc(C(C)=O)c2O)OC1CSc1ccc(C(=O)CCC(=O)OC)cc1 to produce CCCC1c2c(ccc(C(C)=O)c2O)OC1CSc1ccc(C(=O)CCC(=O)O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.