You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Suppose there is a molecule that meets the following description: When heated to decomposition it emits toxic fumes of nitrogen oxides. Please write the SMILES representation of it.
user
Cc1cc([N+](=O)[O-])c(O)c([N+](=O)[O-])c1
assistant