Using BrCc1ccccc1, Cc1[nH]c2ccc([N+](=O)[O-])cc2c1C=O to produce Cc1c(C=O)c2cc([N+](=O)[O-])ccc2n1Cc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.