[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is an optically active O-acylcarnitine compound having propanoyl as the acyl substituent and (R)-configuration at the 3-position. It has a role as a peripheral nervous system drug. It is an O-propanoylcarnitine and a saturated fatty acyl-L-carnitine."}, {"from": "gpt", "value": "[C][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]"}]