Using Nc1ccc(Br)cn1, O=C(O)Cc1ccc(Oc2ccc([N+](=O)[O-])c(O)c2)cc1 to produce O=C(Cc1ccc(Oc2ccc([N+](=O)[O-])c(O)c2)cc1)Nc1ccc(Br)cn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.