[{"from": "human", "value": "Describe this molecule. [C][C@@H1][Branch1][S][C@H1][Branch1][N][C@H1][Branch1][Ring2][N][Ring1][Branch1][C][=Branch1][C][=O][O][O][O]"}, {"from": "gpt", "value": "The molecule is a L-proline derivative that is L-proline substituted by hydroxy groups at positions 3 and 4 (the 3S,4S diastereoisomer). It is a dihydroxyproline, a dihydroxypyrrolidine, a pyrrolidinemonocarboxylic acid, a L-proline derivative and a non-proteinogenic L-alpha-amino acid."}]