Patent ID: 9573883
Date: 2017-02-21
CPC Classifications: C07C

Claim:
1. A method of producing acetyl-L-carnitine nitrate comprising: reacting L-carnitine with acetic anhydride to produce acetyl-L-carnitine free base; isolating the acetyl-L-carnitine free base; reacting the acetyl-L-carnitine free base with nitric acid to produce acetyl-L-carnitine nitrate; and isolating the acetyl-L-carnitine nitrate, wherein reacting L-carnitine with acetic anhydride to produce acetyl-L-carnitine free base comprises dissolving the L-carnitine in acetic acid, and wherein the reaction between L-carnitine and acetic anhydride occurs at a temperature of between 30° C. and 80° C.