[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is the rate limiting enzyme in the biosynthesis of cholesterol."}, {"from": "gpt", "value": "[C][C][Branch1][#Branch1][C][C][=Branch1][C][=O][O][Branch1][#Branch1][C][C][=Branch1][C][=O][O][O]"}]