Using CCOC(=O)n1[nH]c(=O)c2ccccc21, O=[N+]([O-])c1ccc(CBr)cc1 to produce CCOC(=O)n1c2ccccc2c(=O)n1Cc1ccc([N+](=O)[O-])cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.