Using CCc1cccc2c(/C(C)=C/C(=O)O)cc(OC)c(OCOC)c12 to produce CCc1cccc2c(/C(C)=C/C(=O)O)cc(OC)c(O)c12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.