[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a natural product found in Iostephane heterophylla with data available."}, {"from": "gpt", "value": "[C][C@][C][C][C][C@][Branch2][Ring1][O][C@@H1][Ring1][=Branch1][C][C][C@@][C@@H1][Ring1][#Branch2][C][C@H1][C@@H1][Branch1][Ring2][C][Ring1][=Branch1][C@][Ring1][Ring2][Branch1][Ring2][C][Ring1][Branch2][C][Branch1][C][C][C][=Branch1][C][=O][O]"}]