[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is a L-ribopyranose with an alpha-configuration at the anomeric position. It is an enantiomer of an alpha-D-ribopyranose."}, {"from": "gpt", "value": "[C][C@@H1][Branch1][S][C@@H1][Branch1][N][C@@H1][Branch1][Branch2][C@@H1][Branch1][Ring2][O][Ring1][=Branch1][O][O][O][O]"}]