Using CCOC(=O)CCc1nnc(-c2ccc3[nH]nc(-c4ccc(F)cc4)c3c2)[nH]1 to produce O=C(O)CCc1nnc(-c2ccc3[nH]nc(-c4ccc(F)cc4)c3c2)[nH]1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.