Using CC1CCOCc2nc3cnc4cc(Br)ccc4c3n21, O=C(OO)c1cccc(Cl)c1 to produce CC1CCOCc2nc3c[n+]([O-])c4cc(Br)ccc4c3n21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.