Patent Number: 6,294,692

Title: Process for producing N-formylleucine of high purity

Abstract: A process for producing N-formylleucine includes reacting leucine with formamide, precipitating the N-formylleucine, once the reaction is complete, at a temperature of approximately to C., by mixing the reaction medium with water and an acid, so that the final pH of the mixture is approximately 2 to 3, wherein the amount of water used in between approximately 1.5 and 5 parts per part by weight of starting formamide.

Inventors: Hussenet; Patricia (Juvisy, FR), Le Goff; Philippe (Strasbourg, FR), Sennyey; Gerard (Saint-Aubin, FR), Vincent; Charles-Henry (Precy Sur Oise, FR)

Assignee: Isochem

International Classification: C07C 231/00 (20060101); C07C 231/08 (20060101); C07C 229/08 (); C07C 229/10 ()

Expiration Date: 09/25/2018