[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is the (R)-enantiomer of isoflavan. It is an enantiomer of a (S)-isoflavan."}, {"from": "gpt", "value": "[C][C@@H1][Branch1][=N][C][O][C][=C][C][=C][C][=C][Ring1][=Branch1][Ring1][#Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1]"}]