Using CCCc1cccc2c(/C=C(\C)C(=O)O)cc(OC)c(OCOC)c12 to produce CCCc1cccc2c(/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.