[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is an alpha-amino acid that is pyrrolidine bearing a carboxy substituent at position 2. It has a role as a human metabolite and a Daphnia magna metabolite. It is an alpha-amino acid and a member of pyrrolidines. It is a conjugate base of a prolinium. It is a conjugate acid of a prolinate."}, {"from": "gpt", "value": "[C][C][C][Branch1][Branch1][N][C][Ring1][Branch1][C][=Branch1][C][=O][O]"}]