Using CCC=Cc1ccc(-c2ccc(-c3ccc(CC)cc3)c(F)c2F)[se]1 to produce CCCCc1ccc(-c2ccc(-c3ccc(CC)cc3)c(F)c2F)[se]1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.