[{"from": "human", "value": "Provide a brief overview of this molecule. [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]"}, {"from": "gpt", "value": "The molecule is an investigational drug in the United states, Italy, United Kingdom, China, Israel, and Norway, and it is approved in Italy, Portugal, Argentina, Chile, Philippines, Australia, and India. Acetylcarnitine can be synthesized, but it is also naturally found in adequate amounts in healthy humans. In human plasma and tissues, acetylcarnitine is the most predominant acylated ester of carnitine, which is an amino acid derivative that is made in the kidney, liver, and brain from lysine and methionine. The main role of acetylcarnitine is to help transport fatty acids into the mitochondrial matrix where fatty acid metabolism occurs."}]