[{"from": "human", "value": "Provide a description of this molecule. [C][C][C][=Branch1][C][=O][N][C@@H1][Ring1][=Branch1][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a cyclized derivative of L-glutamic acid. It is an uncommon amino acid derivative in which the free amino group of glutamic acid cyclizes to form a lactam. It is formed nonenzymatically from glutamate, glutamine, and gamma-glutamylated peptides, but it can also be produced by the action of gamma-glutamylcyclotransferase on an L-amino acid. Elevated blood levels may be associated with problems of glutamine or glutathione metabolism. This compound is found in substantial amounts in brain tissue and other tissue in bound form, especially skin. Also present in plant tissues. It is sold, over the counter, as a smart drug for improving blood circulation in the brain."}]