[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a natural product found in Huperzia serrata with data available."}, {"from": "gpt", "value": "[C][C@@H1][C][C@H1][C][C@@H1][C@H1][C@][Ring1][Branch1][Branch1][=N][C][C][C][N][Branch1][=Branch1][C][C][C][Ring1][=Branch2][C][C@][Branch1][Ring2][C][Ring1][P][N][Ring1][=C][O][C][=Branch1][C][=O][N][Ring1][#Branch1]"}]