Using O=C(Nc1ncc([N+](=O)[O-])cn1)c1ccc(F)c(Cl)c1 to produce Nc1cnc(NC(=O)c2ccc(F)c(Cl)c2)nc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.