Using Cc1csc2cc(Oc3ncccn3)ccc12, O=[N+]([O-])c1cccc(CBr)c1F to produce Cc1c(Cc2cccc([N+](=O)[O-])c2F)sc2cc(Oc3ncccn3)ccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.