Using CCOC(=O)c1n[nH]c(=O)n(-c2ccc(F)cc2)c1=O to produce O=C(O)c1n[nH]c(=O)n(-c2ccc(F)cc2)c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.