Using O=C(O)c1ccccc1Br, Nc1ccc(CCCc2ccc([N+](=O)[O-])cc2)cc1 to produce O=C(O)c1ccccc1Nc1ccc(CCCc2ccc([N+](=O)[O-])cc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.