Using COc1cc(C(=O)Nc2ccc(Br)cn2)c([N+](=O)[O-])c(OC)c1OC to produce COc1cc(C(=O)Nc2ccc(Br)cn2)c(N)c(OC)c1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.