Using O=C1NC(=O)c2cc([N+](=O)[O-])ccc21, BrCC1CC1 to produce O=C1c2ccc([N+](=O)[O-])cc2C(=O)N1CC1CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.