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