[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a L-ribose and an aldehydo-ribose. It is an enantiomer of an aldehydo-D-ribose."}, {"from": "gpt", "value": "[C][Branch1][#C][C@@H1][Branch1][O][C@@H1][Branch1][#Branch1][C@@H1][Branch1][Ring1][C][=O][O][O][O][O]"}]