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US 5,473,104 AGranted
Process for the preparation of L-carnitine
AssigneeNeurocrine Biosciences, Inc.
InventorJames R. McCarthy
Life of this patent
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Abstract
There is disclosed a process for preparation of L-carnitine from (S)-3-hydroxybutyrolactone. The process is a two-step preparation in which (S)-3-hydroxybutyrolactone is first converted to a hydroxy-activated form and subsequently transformed to L-carnitine by treatment of the hydroxy-activated (S)-3-hydroxybutyrolactone with trimethylamine in water.
Claims19
A process for preparing L-carnitine comprising reacting a hydroxy-activated (S)-3-hydroxybutyrolactone with an aqueous solution of trimethylamine.
Dependencies are inferred from the claim text.