Using CCOC(=O)c1c(Nc2cc(Br)ccc2[N+](=O)[O-])sc2ccccc12 to produce CCOC(=O)c1c(Nc2cc(Br)ccc2N)sc2ccccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.