the object of this invention is to provide a preparation method of high-purity L-carnitine, which is characterized in that to prepare L-carnitine with a purity being above 97%, wherein the content of D-carnitine is below 2%, by detecting and controlling the content of chiral material and chiral intermediate during the whole synthetic process which is started from S-epichlorohydrin, wherein the method include the following steps: the present invention provide a optically pure compound of formula (II) wherein R represents methyl, ethyl, isopropyl, butyl or benzyl, and X represents Cl or Br
Badejo Jr A, Greco AJ, Casey DB, Cook JL, Murthy SN, Kadowitz PJ
These compounds are converted into NAD+ within cells, helping restore energy balance and improve metabolic efficiency
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294,295 In inflammation regulation, NF-B is a key transcription factor