Using Cn1nnnc1N, COc1c([N+](=O)[O-])ccc(C(=O)O)c1Br to produce COc1c([N+](=O)[O-])ccc(C(=O)Nc2nnnn2C)c1Br, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.