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 very toxic fumes of hydrogen chloride and nitrogen oxides. Please write the SMILES representation of it.
user
Clc1nc(Cl)c(Cl)c(Cl)c1Cl
assistant