Using CCOc1ccc(C2(O)CCC3c4ccc(OCC)c(F)c4OC3C2)c(F)c1F to produce CCOc1ccc(C2=CCC3c4ccc(OCC)c(F)c4OC3C2)c(F)c1F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.