Using CCOC(=O)CN1C(=O)C(O)(c2cc(F)c(F)cc2O)c2c(Br)cccc21 to produce CCOC(=O)CN1C(=O)C(c2cc(F)c(F)cc2O)c2c(Br)cccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.