[{"from": "human", "value": "What can you tell me about this molecule? [C][C@H1][C@@H1][Branch1][N][C][=C][C][=C][C][=C][Ring1][=Branch1][O][Ring1][#Branch2][O][C][=C][C][=C][C][=C][Ring1][S][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is the (6aS,11aS)-enantiomer of pterocarpan. It is an enantiomer of a (6aR,11aR)-pterocarpan."}]