[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is under investigation in clinical trial NCT03018496 (Investigating the Effects of Beta-Hydroxy-Beta-Methylbutyrate on Glucose Handling in Older and Younger Men.)."}, {"from": "gpt", "value": "[C][C][Branch1][C][C][Branch1][#Branch1][C][C][=Branch1][C][=O][O][O]"}]