Using CCOC(=O)C(=C(c1ccc(F)cc1)c1ccc(F)cc1)n1cnnn1 to produce O=C(O)C(=C(c1ccc(F)cc1)c1ccc(F)cc1)n1cnnn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.