Using Cc1c(Cl)cccc1CBr, O=[N+]([O-])c1cc(Br)c2nc[nH]c2c1 to produce Cc1c(Cl)cccc1Cn1cnc2c(Br)cc([N+](=O)[O-])cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.