Using O=C(O)CCC(=O)c1ccc(-c2ccc(Cl)cc2F)cc1, NO to produce O=C(O)CCC(=NO)c1ccc(-c2ccc(Cl)cc2F)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.