Process for preparing 1-[/2s/-methyl-3...

Details Process for preparing 1-[/2s/-methyl-3... Process for preparing 1-[/2s/-methyl-3...

C - Chemistry, Metallurgy

07

D

C07D 207/16 (2006.01)

Patent

CA 2090921

Abstract A process for preparing 1-[/2S/-methyl-3-mercapto- propionyl]-pyrrolidine-/2S/-carboxylic acid The invention relates to a novel process for preparing 1-[/2S/-methyl-3-mercaptopropionyl]-pyrrolidine-/2S/- -carboxylic acid of the formula I Image (I) in which 1-[/2S/-methyl-3-thiocyanatopropionyl]-pyrrolidine- -/2S/-carboxylic acid of the formula II Image (II) is dissolved in an aqueous mineral acid, the solution obtained is diluted with water and the 1-[/2S/-methyl-3-carbamoylthio- propionyl]-pyrrolidine-/2S/-carboxylic acid of the formula III Image (III) that forms is hydrolized with an aqueous solution of a base.

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