Using COC(=O)c1ccc(F)c(-c2c(F)ccc(OCc3ccccc3)c2F)n1 to produce COC(=O)c1ccc(F)c(-c2c(F)ccc(O)c2F)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.