[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is the (S)-enantiomer of isoflavan. It is an enantiomer of a (R)-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]"}]