[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is an O-acyl-D-carnitine in which the acyl group specified is acetyl. It is an O-acetylcarnitine and an O-acyl-D-carnitine. It is an enantiomer of an O-acetyl-L-carnitine."}, {"from": "gpt", "value": "[C][C][=Branch1][C][=O][O][C@@H1][Branch1][#Branch1][C][C][=Branch1][C][=O][O-1][C][N+1][Branch1][C][C][Branch1][C][C][C]"}]