Process for preparing 1-[/2S/-methyl -3-mercapto-propionyl]-pyrr

Details Process for preparing 1-[/2S/-methyl -3-mercapto-propionyl]-pyrr Process for preparing 1-[/2S/-methyl -3-mercapto-propionyl]-pyrr

1993-03-01

1994-01-04

Brust, Joseph Paul

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D20716

Patent

active

052762076

ABSTRACT:
The invention relates to a novel process for preparing 1-[/2S/-methyl-3-mercaptopropionyl]-pyrrolidine-/2S/-carboxylic acid of the formula I ##STR1## in which 1-[/2S/-methyl-3-thiocyanatopropionyl]-pyrrolidine-/2S/-carboxylic acid of the formula II ##STR2## is dissolved in an aqueous mineral acid, the solution obtained is diluted with water and the 1-[/2S/-methyl-3-carbamoylthiopropionyl]-pyrrolidine-/2S/-carboxylic acid of the formula III ##STR3## that forms is hydrolized with an aqueous solution of a base.

REFERENCES:
patent: 5202443 (1993-04-01), Schneider et al.

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