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: The molecule is a polar aprotic solvent. When heated to decomposition it emits toxic fumes of nitrogen oxides. The molecule is a ec 4.3.1.3 (histidine ammonia-lyase) inhibitor. Please write the SMILES representation of it.
user
O=C(O)CN(CC(=O)O)CC(=O)O
assistant